331 refactor a certain module gets a specific driver type flask sync driver abci server async driver first we stick to the current tarantool driver (#337)

* created ABCI_RPC class to seperate RPC interaction from the other ABCI interactions
* renamed validation.py to validator.py
* simplified planetmint/__init__.py
* moved methods used by testing to tests/utils.py
* making planetmint/__init__.py lean
* moved ProcessGroup object to tests as it is only used there
* reintegrated disabled tests


Signed-off-by: Jürgen Eckel <juergen@riddleandcode.com>

config/test_config_utils.py

@@ -30,7 +30,7 @@ def test_bigchain_instance_is_initialized_when_conf_provided():
 
 def test_load_validation_plugin_loads_default_rules_without_name():
     from planetmint import config_utils
-    from planetmint.validation import BaseValidationRules
+    from planetmint.application.basevalidationrules import BaseValidationRules
 
     assert config_utils.load_validation_plugin() == BaseValidationRules
 
@@ -321,4 +321,4 @@ def test_database_envs(env_name, env_value, config_key, monkeypatch):
     expected_config = Config().get()
     expected_config["database"][config_key] = env_value
 
-    assert planetmint.config == expected_config
+    assert planetmint.config.Config().get() == expected_config

docs/root/generate_http_server_api_documentation.py

@@ -11,7 +11,9 @@ import os.path
 
 from transactions.common.input import Input
 from transactions.common.transaction_link import TransactionLink
-from planetmint import lib
+
+import planetmint.abci.block
+
 from transactions.types.assets.create import Create
 from transactions.types.assets.transfer import Transfer
 from planetmint.web import server
@@ -210,7 +212,7 @@ def main():
     signature = "53wxrEQDYk1dXzmvNSytbCfmNVnPqPkDQaTnAe8Jf43s6ssejPxezkCvUnGTnduNUmaLjhaan1iRLi3peu6s5DzA"
 
     app_hash = "f6e0c49c6d94d6924351f25bb334cf2a99af4206339bf784e741d1a5ab599056"
-    block = lib.Block(height=1, transactions=[tx.to_dict()], app_hash=app_hash)
+    block = planetmint.abci.block.Block(height=1, transactions=[tx.to_dict()], app_hash=app_hash)
     block_dict = block._asdict()
     block_dict.pop("app_hash")
     ctx["block"] = pretty_json(block_dict)

planetmint/README.md

@@ -19,7 +19,7 @@ The `Planetmint` class is defined here.  Most node-level operations and database
 
 `Block`, `Transaction`, and `Asset` classes are defined here.  The classes mirror the block and transaction structure from the documentation, but also include methods for validation and signing.
 
-### [`validation.py`](./validation.py)
+### [`validation.py`](application/basevalidationrules.py)
 
 Base class for validation methods (verification of votes, blocks, and transactions).  The actual logic is mostly found in `transaction` and `block` models, defined in [`models.py`](./models.py).
 
@@ -27,7 +27,7 @@ Base class for validation methods (verification of votes, blocks, and transactio
 
 Entry point for the Planetmint process, after initialization.  All subprocesses are started here: processes to handle new blocks, votes, etc.
 
-### [`config_utils.py`](./config_utils.py)
+### [`config_utils.py`](config_utils.py)
 
 Methods for managing the configuration, including loading configuration files, automatically generating the configuration, and keeping the configuration consistent across Planetmint instances.
 

planetmint/__init__.py

@@ -2,17 +2,3 @@
 # Planetmint and IPDB software contributors.
 # SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
 # Code is Apache-2.0 and docs are CC-BY-4.0
-
-from transactions.common.transaction import Transaction  # noqa
-from transactions.types.elections.validator_election import ValidatorElection  # noqa
-from transactions.types.elections.vote import Vote  # noqa
-from transactions.types.elections.chain_migration_election import ChainMigrationElection
-from planetmint.lib import Planetmint
-from planetmint.core import App
-
-
-Transaction.register_type(Transaction.CREATE, Transaction)
-Transaction.register_type(Transaction.TRANSFER, Transaction)
-Transaction.register_type(ValidatorElection.OPERATION, ValidatorElection)
-Transaction.register_type(ChainMigrationElection.OPERATION, ChainMigrationElection)
-Transaction.register_type(Vote.OPERATION, Vote)

planetmint/abci/block.py

@@ -0,0 +1,3 @@
+from collections import namedtuple
+
+Block = namedtuple("Block", ("app_hash", "height", "transactions"))

planetmint/abci/core.py

@@ -21,11 +21,12 @@ from tendermint.abci.types_pb2 import (
     ResponseEndBlock,
     ResponseCommit,
 )
-from planetmint import Planetmint
-from planetmint.tendermint_utils import decode_transaction, calculate_hash, decode_validator
-from planetmint.lib import Block
-from planetmint.events import EventTypes, Event
 
+from planetmint.application.validator import Validator
+from planetmint.model.models import Models
+from planetmint.abci.tendermint_utils import decode_transaction, calculate_hash, decode_validator
+from planetmint.abci.block import Block
+from planetmint.ipc.events import EventTypes, Event
 
 CodeTypeError = 1
 logger = logging.getLogger(__name__)
@@ -38,18 +39,19 @@ class App(BaseApplication):
     transaction logic to Tendermint Core.
     """
 
-    def __init__(self, planetmint_node=None, events_queue=None):
+    def __init__(self, planetmint_node=None, events_queue=None, models: Models = None, validator: Validator = None):
         # super().__init__(abci)
         logger.debug("Checking values of types")
         logger.debug(dir(types_pb2))
         self.events_queue = events_queue
-        self.planetmint_node = planetmint_node or Planetmint()
+        self.validator = Validator()
+        self.models = models or Models()
         self.block_txn_ids = []
         self.block_txn_hash = ""
         self.block_transactions = []
         self.validators = None
         self.new_height = None
-        self.chain = self.planetmint_node.get_latest_abci_chain()
+        self.chain = self.models.get_latest_abci_chain()
 
     def log_abci_migration_error(self, chain_id, validators):
         logger.error(
@@ -61,7 +63,7 @@ class App(BaseApplication):
     def abort_if_abci_chain_is_not_synced(self):
         if self.chain is None or self.chain["is_synced"]:
             return
-        validators = self.planetmint_node.get_validators()
+        validators = self.models.get_validators()
         self.log_abci_migration_error(self.chain["chain_id"], validators)
         sys.exit(1)
 
@@ -69,7 +71,7 @@ class App(BaseApplication):
         """Initialize chain upon genesis or a migration"""
         app_hash = ""
         height = 0
-        known_chain = self.planetmint_node.get_latest_abci_chain()
+        known_chain = self.models.get_latest_abci_chain()
         if known_chain is not None:
             chain_id = known_chain["chain_id"]
 
@@ -78,23 +80,23 @@ class App(BaseApplication):
                 logger.error(msg)
                 sys.exit(1)
             if chain_id != genesis.chain_id:
-                validators = self.planetmint_node.get_validators()
+                validators = self.models.get_validators()
                 self.log_abci_migration_error(chain_id, validators)
                 sys.exit(1)
             # set migration values for app hash and height
-            block = self.planetmint_node.get_latest_block()
+            block = self.models.get_latest_block()
             app_hash = "" if block is None else block["app_hash"]
             height = 0 if block is None else block["height"] + 1
-        known_validators = self.planetmint_node.get_validators()
+        known_validators = self.models.get_validators()
         validator_set = [decode_validator(v) for v in genesis.validators]
         if known_validators and known_validators != validator_set:
             self.log_abci_migration_error(known_chain["chain_id"], known_validators)
             sys.exit(1)
         block = Block(app_hash=app_hash, height=height, transactions=[])
-        self.planetmint_node.store_block(block._asdict())
-        self.planetmint_node.store_validator_set(height + 1, validator_set)
+        self.models.store_block(block._asdict())
+        self.models.store_validator_set(height + 1, validator_set)
         abci_chain_height = 0 if known_chain is None else known_chain["height"]
-        self.planetmint_node.store_abci_chain(abci_chain_height, genesis.chain_id, True)
+        self.models.store_abci_chain(abci_chain_height, genesis.chain_id, True)
         self.chain = {"height": abci_chain_height, "is_synced": True, "chain_id": genesis.chain_id}
         return ResponseInitChain()
 
@@ -112,7 +114,7 @@ class App(BaseApplication):
         # logger.info(f"Tendermint version: {request.version}")
 
         r = ResponseInfo()
-        block = self.planetmint_node.get_latest_block()
+        block = self.models.get_latest_block()
         if block:
             chain_shift = 0 if self.chain is None else self.chain["height"]
             r.last_block_height = block["height"] - chain_shift
@@ -134,7 +136,7 @@ class App(BaseApplication):
 
         logger.debug("check_tx: %s", raw_transaction)
         transaction = decode_transaction(raw_transaction)
-        if self.planetmint_node.is_valid_transaction(transaction):
+        if self.validator.is_valid_transaction(transaction):
             logger.debug("check_tx: VALID")
             return ResponseCheckTx(code=OkCode)
         else:
@@ -167,9 +169,7 @@ class App(BaseApplication):
         self.abort_if_abci_chain_is_not_synced()
 
         logger.debug("deliver_tx: %s", raw_transaction)
-        transaction = self.planetmint_node.is_valid_transaction(
-            decode_transaction(raw_transaction), self.block_transactions
-        )
+        transaction = self.validator.is_valid_transaction(decode_transaction(raw_transaction), self.block_transactions)
 
         if not transaction:
             logger.debug("deliver_tx: INVALID")
@@ -198,10 +198,10 @@ class App(BaseApplication):
         # `end_block` or `commit`
         logger.debug(f"Updating pre-commit state: {self.new_height}")
         pre_commit_state = dict(height=self.new_height, transactions=self.block_txn_ids)
-        self.planetmint_node.store_pre_commit_state(pre_commit_state)
+        self.models.store_pre_commit_state(pre_commit_state)
 
         block_txn_hash = calculate_hash(self.block_txn_ids)
-        block = self.planetmint_node.get_latest_block()
+        block = self.models.get_latest_block()
 
         logger.debug("BLOCK: ", block)
 
@@ -210,7 +210,7 @@ class App(BaseApplication):
         else:
             self.block_txn_hash = block["app_hash"]
 
-        validator_update = self.planetmint_node.process_block(self.new_height, self.block_transactions)
+        validator_update = self.validator.process_block(self.new_height, self.block_transactions)
 
         return ResponseEndBlock(validator_updates=validator_update)
 
@@ -223,12 +223,12 @@ class App(BaseApplication):
 
         # register a new block only when new transactions are received
         if self.block_txn_ids:
-            self.planetmint_node.store_bulk_transactions(self.block_transactions)
+            self.models.store_bulk_transactions(self.block_transactions)
 
         block = Block(app_hash=self.block_txn_hash, height=self.new_height, transactions=self.block_txn_ids)
         # NOTE: storing the block should be the last operation during commit
         # this effects crash recovery. Refer BEP#8 for details
-        self.planetmint_node.store_block(block._asdict())
+        self.models.store_block(block._asdict())
 
         logger.debug(
             "Commit-ing new block with hash: apphash=%s ," "height=%s, txn ids=%s",
@@ -245,26 +245,3 @@ class App(BaseApplication):
             self.events_queue.put(event)
 
         return ResponseCommit(data=data)
-
-
-def rollback(planetmint):
-    pre_commit = None
-
-    try:
-        pre_commit = planetmint.get_pre_commit_state()
-    except Exception as e:
-        logger.exception("Unexpected error occurred while executing get_pre_commit_state()", e)
-
-    if pre_commit is None or len(pre_commit) == 0:
-        # the pre_commit record is first stored in the first `end_block`
-        return
-
-    latest_block = planetmint.get_latest_block()
-    if latest_block is None:
-        logger.error("Found precommit state but no blocks!")
-        sys.exit(1)
-
-    # NOTE: the pre-commit state is always at most 1 block ahead of the commited state
-    if latest_block["height"] < pre_commit["height"]:
-        planetmint.rollback_election(pre_commit["height"], pre_commit["transactions"])
-        planetmint.delete_transactions(pre_commit["transactions"])

planetmint/abci/parallel_validation.py

@@ -6,9 +6,9 @@
 import multiprocessing
 
 from collections import defaultdict
-from planetmint import App
-from planetmint.lib import Planetmint
-from planetmint.tendermint_utils import decode_transaction
+from planetmint.abci.core import App
+from planetmint.application.validator import Validator
+from planetmint.abci.tendermint_utils import decode_transaction
 from abci.application import OkCode
 from tendermint.abci.types_pb2 import (
     ResponseCheckTx,
@@ -93,7 +93,7 @@ class ValidationWorker:
     def __init__(self, in_queue, results_queue):
         self.in_queue = in_queue
         self.results_queue = results_queue
-        self.planetmint = Planetmint()
+        self.validator = Validator()
         self.reset()
 
     def reset(self):
@@ -112,7 +112,7 @@ class ValidationWorker:
         except TypeError:
             asset_id = dict_transaction["id"]
 
-        transaction = self.planetmint.is_valid_transaction(dict_transaction, self.validated_transactions[asset_id])
+        transaction = self.validator.is_valid_transaction(dict_transaction, self.validated_transactions[asset_id])
 
         if transaction:
             self.validated_transactions[asset_id].append(transaction)

planetmint/abci/rpc.py

@@ -0,0 +1,74 @@
+import requests
+from uuid import uuid4
+from transactions.common.exceptions import ValidationError
+from transactions.common.transaction_mode_types import (
+    BROADCAST_TX_COMMIT,
+    BROADCAST_TX_ASYNC,
+    BROADCAST_TX_SYNC,
+)
+
+from planetmint.utils import Singleton
+from planetmint.abci.tendermint_utils import encode_transaction
+from planetmint.application.validator import logger
+from planetmint.config_utils import autoconfigure
+from planetmint.config import Config
+
+MODE_COMMIT = BROADCAST_TX_COMMIT
+MODE_LIST = (BROADCAST_TX_ASYNC, BROADCAST_TX_SYNC, MODE_COMMIT)
+
+
+class ABCI_RPC:
+    def __init__(self):
+        autoconfigure()
+        self.tendermint_host = Config().get()["tendermint"]["host"]
+        self.tendermint_port = Config().get()["tendermint"]["port"]
+        self.tendermint_rpc_endpoint = "http://{}:{}/".format(self.tendermint_host, self.tendermint_port)
+
+    @staticmethod
+    def _process_post_response(mode_commit, response, mode):
+        logger.debug(response)
+
+        error = response.get("error")
+        if error:
+            status_code = 500
+            message = error.get("message", "Internal Error")
+            data = error.get("data", "")
+
+            if "Tx already exists in cache" in data:
+                status_code = 400
+
+            return (status_code, message + " - " + data)
+
+        result = response["result"]
+        if mode == mode_commit:
+            check_tx_code = result.get("check_tx", {}).get("code", 0)
+            deliver_tx_code = result.get("deliver_tx", {}).get("code", 0)
+            error_code = check_tx_code or deliver_tx_code
+        else:
+            error_code = result.get("code", 0)
+
+        if error_code:
+            return (500, "Transaction validation failed")
+
+        return (202, "")
+
+    def write_transaction(self, mode_list, endpoint, mode_commit, transaction, mode):
+        # This method offers backward compatibility with the Web API.
+        """Submit a valid transaction to the mempool."""
+        response = self.post_transaction(mode_list, endpoint, transaction, mode)
+        return ABCI_RPC._process_post_response(mode_commit, response.json(), mode)
+
+    def post_transaction(self, mode_list, endpoint, transaction, mode):
+        """Submit a valid transaction to the mempool."""
+        if not mode or mode not in mode_list:
+            raise ValidationError("Mode must be one of the following {}.".format(", ".join(mode_list)))
+
+        tx_dict = transaction.tx_dict if transaction.tx_dict else transaction.to_dict()
+        payload = {
+            "method": mode,
+            "jsonrpc": "2.0",
+            "params": [encode_transaction(tx_dict)],
+            "id": str(uuid4()),
+        }
+        # TODO: handle connection errors!
+        return requests.post(endpoint, json=payload)

planetmint/abci/utils.py

@@ -0,0 +1,35 @@
+import json
+
+from packaging import version
+from transactions.common.crypto import key_pair_from_ed25519_key
+
+from planetmint.abci.tendermint_utils import key_from_base64
+from planetmint.version import __tm_supported_versions__
+
+
+def load_node_key(path):
+    with open(path) as json_data:
+        priv_validator = json.load(json_data)
+        priv_key = priv_validator["priv_key"]["value"]
+        hex_private_key = key_from_base64(priv_key)
+        return key_pair_from_ed25519_key(hex_private_key)
+
+
+def tendermint_version_is_compatible(running_tm_ver):
+    """
+    Check Tendermint compatability with Planetmint server
+
+    :param running_tm_ver: Version number of the connected Tendermint instance
+    :type running_tm_ver: str
+    :return: True/False depending on the compatability with Planetmint server
+    :rtype: bool
+    """
+
+    # Splitting because version can look like this e.g. 0.22.8-40d6dc2e
+    tm_ver = running_tm_ver.split("-")
+    if not tm_ver:
+        return False
+    for ver in __tm_supported_versions__:
+        if version.parse(ver) == version.parse(tm_ver[0]):
+            return True
+    return False

planetmint/application/__init__.py

@@ -0,0 +1,2 @@
+from .validator import Validator
+from .basevalidationrules import BaseValidationRules

planetmint/application/validator.py

@@ -0,0 +1,554 @@
+import logging
+import json
+
+from collections import OrderedDict
+from transactions import Transaction, Vote
+from transactions.common.exceptions import (
+    DoubleSpend,
+    AssetIdMismatch,
+    InvalidSignature,
+    AmountError,
+    SchemaValidationError,
+    ValidationError,
+    MultipleInputsError,
+    DuplicateTransaction,
+    InvalidProposer,
+    UnequalValidatorSet,
+    InvalidPowerChange,
+)
+from transactions.common.crypto import public_key_from_ed25519_key
+from transactions.common.output import Output as TransactionOutput
+from transactions.common.transaction import VALIDATOR_ELECTION, CHAIN_MIGRATION_ELECTION
+from transactions.types.elections.election import Election
+from transactions.types.elections.validator_utils import election_id_to_public_key
+
+from planetmint.abci.tendermint_utils import (
+    merkleroot,
+    key_from_base64,
+    public_key_to_base64,
+    encode_validator,
+    new_validator_set,
+)
+from planetmint.application.basevalidationrules import BaseValidationRules
+from planetmint.backend.models.output import Output
+from planetmint.model.models import Models
+from planetmint.config import Config
+from planetmint.config_utils import load_validation_plugin
+
+logger = logging.getLogger(__name__)
+
+
+class Validator:
+    def __init__(self):
+        self.models = Models()
+        self.validation = Validator._get_validationmethod()
+
+    @staticmethod
+    def _get_validationmethod():
+        validationPlugin = Config().get().get("validation_plugin")
+
+        if validationPlugin:
+            validation_method = load_validation_plugin(validationPlugin)
+        else:
+            validation_method = BaseValidationRules
+        return validation_method
+
+    @staticmethod
+    def validate_inputs_distinct(tx: Transaction):
+        # Validate that all inputs are distinct
+        links = [i.fulfills.to_uri() for i in tx.inputs]
+        if len(links) != len(set(links)):
+            raise DoubleSpend('tx "{}" spends inputs twice'.format(tx.id))
+
+    @staticmethod
+    def validate_asset_id(tx: Transaction, input_txs: list):
+        # validate asset
+        if tx.operation != Transaction.COMPOSE:
+            asset_id = tx.get_asset_id(input_txs)
+            if asset_id != Transaction.read_out_asset_id(tx):
+                raise AssetIdMismatch(
+                    ("The asset id of the input does not" " match the asset id of the" " transaction")
+                )
+        else:
+            asset_ids = Transaction.get_asset_ids(input_txs)
+            if Transaction.read_out_asset_id(tx) in asset_ids:
+                raise AssetIdMismatch(("The asset ID of the compose must be different to all of its input asset IDs"))
+
+    @staticmethod
+    def validate_input_conditions(tx: Transaction, input_conditions: list[Output]):
+        # convert planetmint.Output objects to transactions.common.Output objects
+        input_conditions_dict = Output.list_to_dict(input_conditions)
+        input_conditions_converted = []
+        for input_cond in input_conditions_dict:
+            input_conditions_converted.append(TransactionOutput.from_dict(input_cond))
+
+        if not tx.inputs_valid(input_conditions_converted):
+            raise InvalidSignature("Transaction signature is invalid.")
+
+    def validate_compose_inputs(self, tx, current_transactions=[]) -> bool:
+        input_txs, input_conditions = self.models.get_input_txs_and_conditions(tx.inputs, current_transactions)
+
+        Validator.validate_input_conditions(tx, input_conditions)
+
+        Validator.validate_asset_id(tx, input_txs)
+
+        Validator.validate_inputs_distinct(tx)
+
+        return True
+
+    def validate_transfer_inputs(self, tx, current_transactions=[]) -> bool:
+        input_txs, input_conditions = self.models.get_input_txs_and_conditions(tx.inputs, current_transactions)
+
+        Validator.validate_input_conditions(tx, input_conditions)
+
+        Validator.validate_asset_id(tx, input_txs)
+
+        Validator.validate_inputs_distinct(tx)
+
+        input_amount = sum([input_condition.amount for input_condition in input_conditions])
+        output_amount = sum([output_condition.amount for output_condition in tx.outputs])
+
+        if output_amount != input_amount:
+            raise AmountError(
+                (
+                    "The amount used in the inputs `{}`" " needs to be same as the amount used" " in the outputs `{}`"
+                ).format(input_amount, output_amount)
+            )
+
+        return True
+
+    def validate_create_inputs(self, tx, current_transactions=[]) -> bool:
+        duplicates = any(txn for txn in current_transactions if txn.id == tx.id)
+        if self.models.is_committed(tx.id) or duplicates:
+            raise DuplicateTransaction("transaction `{}` already exists".format(tx.id))
+
+        fulfilling_inputs = [i for i in tx.inputs if i.fulfills is not None and i.fulfills.txid is not None]
+
+        if len(fulfilling_inputs) > 0:
+            input_txs, input_conditions = self.models.get_input_txs_and_conditions(
+                fulfilling_inputs, current_transactions
+            )
+            create_asset = tx.assets[0]
+            input_asset = input_txs[0].assets[tx.inputs[0].fulfills.output]["data"]
+            if create_asset != input_asset:
+                raise ValidationError("CREATE must have matching asset description with input transaction")
+            if input_txs[0].operation != Transaction.DECOMPOSE:
+                raise SchemaValidationError("CREATE can only consume DECOMPOSE outputs")
+
+        return True
+
+    def validate_transaction(self, transaction, current_transactions=[]):
+        """Validate a transaction against the current status of the database."""
+
+        # CLEANUP: The conditional below checks for transaction in dict format.
+        # It would be better to only have a single format for the transaction
+        # throught the code base.
+        if isinstance(transaction, dict):
+            try:
+                transaction = Transaction.from_dict(transaction, False)
+            except SchemaValidationError as e:
+                logger.warning("Invalid transaction schema: %s", e.__cause__.message)
+                return False
+            except ValidationError as e:
+                logger.warning("Invalid transaction (%s): %s", type(e).__name__, e)
+                return False
+
+        if transaction.operation == Transaction.CREATE:
+            self.validate_create_inputs(transaction, current_transactions)
+        elif transaction.operation in [Transaction.TRANSFER, Transaction.VOTE]:
+            self.validate_transfer_inputs(transaction, current_transactions)
+        elif transaction.operation in [Transaction.COMPOSE]:
+            self.validate_compose_inputs(transaction, current_transactions)
+
+        return transaction
+
+    def validate_election(self, transaction, current_transactions=[]):  # TODO: move somewhere else
+        """Validate election transaction
+
+        NOTE:
+        * A valid election is initiated by an existing validator.
+
+        * A valid election is one where voters are validators and votes are
+          allocated according to the voting power of each validator node.
+
+        Args:
+            :param planet: (Planetmint) an instantiated planetmint.lib.Planetmint object.
+            :param current_transactions: (list) A list of transactions to be validated along with the election
+
+        Returns:
+            Election: a Election object or an object of the derived Election subclass.
+
+        Raises:
+            ValidationError: If the election is invalid
+        """
+
+        duplicates = any(txn for txn in current_transactions if txn.id == transaction.id)
+        if self.models.is_committed(transaction.id) or duplicates:
+            raise DuplicateTransaction("transaction `{}` already exists".format(transaction.id))
+
+        current_validators = self.models.get_validators_dict()
+
+        # NOTE: Proposer should be a single node
+        if len(transaction.inputs) != 1 or len(transaction.inputs[0].owners_before) != 1:
+            raise MultipleInputsError("`tx_signers` must be a list instance of length one")
+
+        # NOTE: Check if the proposer is a validator.
+        [election_initiator_node_pub_key] = transaction.inputs[0].owners_before
+        if election_initiator_node_pub_key not in current_validators.keys():
+            raise InvalidProposer("Public key is not a part of the validator set")
+
+        # NOTE: Check if all validators have been assigned votes equal to their voting power
+        if not self.is_same_topology(current_validators, transaction.outputs):
+            raise UnequalValidatorSet("Validator set much be exactly same to the outputs of election")
+
+        if transaction.operation == VALIDATOR_ELECTION:
+            self.validate_validator_election(transaction)
+
+        return transaction
+
+    def is_same_topology(cls, current_topology, election_topology):
+        voters = {}
+        for voter in election_topology:
+            if len(voter.public_keys) > 1:
+                return False
+
+            [public_key] = voter.public_keys
+            voting_power = voter.amount
+            voters[public_key] = voting_power
+
+        # Check whether the voters and their votes is same to that of the
+        # validators and their voting power in the network
+        return current_topology == voters
+
+    def validate_validator_election(self, transaction):  # TODO: move somewhere else
+        """For more details refer BEP-21: https://github.com/planetmint/BEPs/tree/master/21"""
+
+        current_validators = self.models.get_validators_dict()
+
+        # NOTE: change more than 1/3 of the current power is not allowed
+        if transaction.get_assets()[0]["data"]["power"] >= (1 / 3) * sum(current_validators.values()):
+            raise InvalidPowerChange("`power` change must be less than 1/3 of total power")
+
+    def get_election_status(self, transaction):
+        election = self.models.get_election(transaction.id)
+        if election and election["is_concluded"]:
+            return Election.CONCLUDED
+
+        return Election.INCONCLUSIVE if self.has_validator_set_changed(transaction) else Election.ONGOING
+
+    def has_validator_set_changed(self, transaction):
+        latest_change = self.get_validator_change()
+        if latest_change is None:
+            return False
+
+        latest_change_height = latest_change["height"]
+
+        election = self.models.get_election(transaction.id)
+
+        return latest_change_height > election["height"]
+
+    def get_validator_change(self):
+        """Return the validator set from the most recent approved block
+
+        :return: {
+            'height': <block_height>,
+            'validators': <validator_set>
+        }
+        """
+        latest_block = self.models.get_latest_block()
+        if latest_block is None:
+            return None
+        return self.models.get_validator_set(latest_block["height"])
+
+    def get_validator_dict(self, height=None):
+        """Return a dictionary of validators with key as `public_key` and
+        value as the `voting_power`
+        """
+        validators = {}
+        for validator in self.models.get_validators(height):
+            # NOTE: we assume that Tendermint encodes public key in base64
+            public_key = public_key_from_ed25519_key(key_from_base64(validator["public_key"]["value"]))
+            validators[public_key] = validator["voting_power"]
+
+        return validators
+
+    # TODO to be moved to planetmint.commands.planetmint
+    def show_election_status(self, transaction):
+        data = transaction.assets[0]
+        data = data.to_dict()["data"]
+        if "public_key" in data.keys():
+            data["public_key"] = public_key_to_base64(data["public_key"]["value"])
+        response = ""
+        for k, v in data.items():
+            if k != "seed":
+                response += f"{k}={v}\n"
+        response += f"status={self.get_election_status(transaction)}"
+
+        if transaction.operation == CHAIN_MIGRATION_ELECTION:
+            response = self.append_chain_migration_status(response)
+
+        return response
+
+    # TODO to be moved to planetmint.commands.planetmint
+    def append_chain_migration_status(self, status):
+        chain = self.models.get_latest_abci_chain()
+        if chain is None or chain["is_synced"]:
+            return status
+
+        status += f'\nchain_id={chain["chain_id"]}'
+        block = self.models.get_latest_block()
+        status += f'\napp_hash={block["app_hash"]}'
+        validators = [
+            {
+                "pub_key": {
+                    "type": "tendermint/PubKeyEd25519",
+                    "value": k,
+                },
+                "power": v,
+            }
+            for k, v in self.get_validator_dict().items()
+        ]
+        status += f"\nvalidators={json.dumps(validators, indent=4)}"
+        return status
+
+    def get_recipients_list(self):
+        """Convert validator dictionary to a recipient list for `Transaction`"""
+
+        recipients = []
+        for public_key, voting_power in self.get_validator_dict().items():
+            recipients.append(([public_key], voting_power))
+
+        return recipients
+
+    def count_votes(self, election_pk, transactions):
+        votes = 0
+        for txn in transactions:
+            if txn.operation == Vote.OPERATION:
+                for output in txn.outputs:
+                    # NOTE: We enforce that a valid vote to election id will have only
+                    # election_pk in the output public keys, including any other public key
+                    # along with election_pk will lead to vote being not considered valid.
+                    if len(output.public_keys) == 1 and [election_pk] == output.public_keys:
+                        votes = votes + output.amount
+        return votes
+
+    def get_commited_votes(self, transaction, election_pk=None):  # TODO: move somewhere else
+        if election_pk is None:
+            election_pk = election_id_to_public_key(transaction.id)
+        txns = self.models.get_asset_tokens_for_public_key(transaction.id, election_pk)
+        return self.count_votes(election_pk, txns)
+
+    def _get_initiated_elections(self, height, txns):  # TODO: move somewhere else
+        elections = []
+        for tx in txns:
+            if not isinstance(tx, Election):
+                continue
+
+            elections.append({"election_id": tx.id, "height": height, "is_concluded": False})
+        return elections
+
+    def _get_votes(self, txns):  # TODO: move somewhere else
+        elections = OrderedDict()
+        for tx in txns:
+            if not isinstance(tx, Vote):
+                continue
+            election_id = Transaction.read_out_asset_id(tx)
+            if election_id not in elections:
+                elections[election_id] = []
+            elections[election_id].append(tx)
+        return elections
+
+    def process_block(self, new_height, txns):  # TODO: move somewhere else
+        """Looks for election and vote transactions inside the block, records
+        and processes elections.
+
+        Every election is recorded in the database.
+
+        Every vote has a chance to conclude the corresponding election. When
+        an election is concluded, the corresponding database record is
+        marked as such.
+
+        Elections and votes are processed in the order in which they
+        appear in the block. Elections are concluded in the order of
+        appearance of their first votes in the block.
+
+        For every election concluded in the block, calls its `on_approval`
+        method. The returned value of the last `on_approval`, if any,
+        is a validator set update to be applied in one of the following blocks.
+
+        `on_approval` methods are implemented by elections of particular type.
+        The method may contain side effects but should be idempotent. To account
+        for other concluded elections, if it requires so, the method should
+        rely on the database state.
+        """
+        # elections initiated in this block
+        initiated_elections = self._get_initiated_elections(new_height, txns)
+
+        if initiated_elections:
+            self.models.store_elections(initiated_elections)
+
+        # elections voted for in this block and their votes
+        elections = self._get_votes(txns)
+
+        validator_update = None
+        for election_id, votes in elections.items():
+            election = self.models.get_transaction(election_id)
+            if election is None:
+                continue
+
+            if not self.has_election_concluded(election, votes):
+                continue
+
+            validator_update = self.approve_election(election, new_height)
+            self.models.store_election(election.id, new_height, is_concluded=True)
+
+        return [validator_update] if validator_update else []
+
+    def has_election_concluded(self, transaction, current_votes=[]):  # TODO: move somewhere else
+        """Check if the election can be concluded or not.
+
+        * Elections can only be concluded if the validator set has not changed
+          since the election was initiated.
+        * Elections can be concluded only if the current votes form a supermajority.
+
+        Custom elections may override this function and introduce additional checks.
+        """
+        if self.has_validator_set_changed(transaction):
+            return False
+
+        if transaction.operation == VALIDATOR_ELECTION:
+            if not self.has_validator_election_concluded():
+                return False
+
+        if transaction.operation == CHAIN_MIGRATION_ELECTION:
+            if not self.has_chain_migration_concluded():
+                return False
+
+        election_pk = election_id_to_public_key(transaction.id)
+        votes_committed = self.get_commited_votes(transaction, election_pk)
+        votes_current = self.count_votes(election_pk, current_votes)
+
+        total_votes = sum(int(output.amount) for output in transaction.outputs)
+        if (votes_committed < (2 / 3) * total_votes) and (votes_committed + votes_current >= (2 / 3) * total_votes):
+            return True
+
+        return False
+
+    def has_validator_election_concluded(self):  # TODO: move somewhere else
+        latest_block = self.models.get_latest_block()
+        if latest_block is not None:
+            latest_block_height = latest_block["height"]
+            latest_validator_change = self.models.get_validator_set()["height"]
+
+            # TODO change to `latest_block_height + 3` when upgrading to Tendermint 0.24.0.
+            if latest_validator_change == latest_block_height + 2:
+                # do not conclude the election if there is a change assigned already
+                return False
+
+        return True
+
+    def has_chain_migration_concluded(self):  # TODO: move somewhere else
+        chain = self.models.get_latest_abci_chain()
+        if chain is not None and not chain["is_synced"]:
+            # do not conclude the migration election if
+            # there is another migration in progress
+            return False
+
+        return True
+
+    def rollback_election(self, new_height, txn_ids):  # TODO: move somewhere else
+        """Looks for election and vote transactions inside the block and
+        cleans up the database artifacts possibly created in `process_blocks`.
+
+        Part of the `end_block`/`commit` crash recovery.
+        """
+
+        # delete election records for elections initiated at this height and
+        # elections concluded at this height
+        self.models.delete_elections(new_height)
+
+        txns = [self.models.get_transaction(tx_id) for tx_id in txn_ids]
+
+        txns = [Transaction.from_dict(tx.to_dict()) for tx in txns if tx]
+
+        elections = self._get_votes(txns)
+        for election_id in elections:
+            election = self.models.get_transaction(election_id)
+            if election.operation == VALIDATOR_ELECTION:
+                # TODO change to `new_height + 2` when upgrading to Tendermint 0.24.0.
+                self.models.delete_validator_set(new_height + 1)
+            if election.operation == CHAIN_MIGRATION_ELECTION:
+                self.models.delete_abci_chain(new_height)
+
+    def approve_election(self, election, new_height):
+        """Override to update the database state according to the
+        election rules. Consider the current database state to account for
+        other concluded elections, if required.
+        """
+        if election.operation == CHAIN_MIGRATION_ELECTION:
+            self.migrate_abci_chain()
+        if election.operation == VALIDATOR_ELECTION:
+            validator_updates = [election.assets[0].data]
+            curr_validator_set = self.models.get_validators(new_height)
+            updated_validator_set = new_validator_set(curr_validator_set, validator_updates)
+
+            updated_validator_set = [v for v in updated_validator_set if v["voting_power"] > 0]
+
+            # TODO change to `new_height + 2` when upgrading to Tendermint 0.24.0.
+            self.models.store_validator_set(new_height + 1, updated_validator_set)
+            return encode_validator(election.assets[0].data)
+
+    def is_valid_transaction(self, tx, current_transactions=[]):
+        # NOTE: the function returns the Transaction object in case
+        # the transaction is valid
+        try:
+            return self.validate_transaction(tx, current_transactions)
+        except ValidationError as e:
+            logger.warning("Invalid transaction (%s): %s", type(e).__name__, e)
+            return False
+
+    def migrate_abci_chain(self):
+        """Generate and record a new ABCI chain ID. New blocks are not
+        accepted until we receive an InitChain ABCI request with
+        the matching chain ID and validator set.
+
+        Chain ID is generated based on the current chain and height.
+        `chain-X` => `chain-X-migrated-at-height-5`.
+        `chain-X-migrated-at-height-5` => `chain-X-migrated-at-height-21`.
+
+        If there is no known chain (we are at genesis), the function returns.
+        """
+        latest_chain = self.models.get_latest_abci_chain()
+        if latest_chain is None:
+            return
+
+        block = self.models.get_latest_block()
+
+        suffix = "-migrated-at-height-"
+        chain_id = latest_chain["chain_id"]
+        block_height_str = str(block["height"])
+        new_chain_id = chain_id.split(suffix)[0] + suffix + block_height_str
+
+        self.models.store_abci_chain(block["height"] + 1, new_chain_id, False)
+
+    def rollback(self):
+        pre_commit = None
+
+        try:
+            pre_commit = self.models.get_pre_commit_state()
+        except Exception as e:
+            logger.exception("Unexpected error occurred while executing get_pre_commit_state()", e)
+
+        if pre_commit is None or len(pre_commit) == 0:
+            # the pre_commit record is first stored in the first `end_block`
+            return
+
+        latest_block = self.models.get_latest_block()
+        if latest_block is None:
+            logger.error("Found precommit state but no blocks!")
+            sys.exit(1)
+
+        # NOTE: the pre-commit state is always at most 1 block ahead of the commited state
+        if latest_block["height"] < pre_commit["height"]:
+            self.rollback_election(pre_commit["height"], pre_commit["transactions"])
+            self.models.delete_transactions(pre_commit["transactions"])

planetmint/backend/models/dbtransaction.py

@@ -46,7 +46,7 @@ class DbTransaction:
         )
 
     @staticmethod
-    def remove_generated_fields(tx_dict: dict):
+    def remove_generated_fields(tx_dict: dict) -> dict:
         tx_dict["outputs"] = [
             DbTransaction.remove_generated_or_none_output_keys(output) for output in tx_dict["outputs"]
         ]
@@ -55,13 +55,19 @@ class DbTransaction:
         return tx_dict
 
     @staticmethod
-    def remove_generated_or_none_output_keys(output):
+    def remove_generated_or_none_output_keys(output: dict) -> dict:
         output["condition"]["details"] = {k: v for k, v in output["condition"]["details"].items() if v is not None}
         if "id" in output:
             output.pop("id")
         return output
 
     def to_dict(self) -> dict:
+        """
+
+        Returns
+        -------
+        object
+        """
         assets = Asset.list_to_dict(self.assets)
         tx = {
             "inputs": Input.list_to_dict(self.inputs),

planetmint/backend/models/output.py

@@ -70,9 +70,9 @@ class Output:
     def outputs_dict(output: dict, transaction_id: str = "") -> Output:
         out_dict: Output
         if output["condition"]["details"].get("subconditions") is None:
-            out_dict = output_with_public_key(output, transaction_id)
+            out_dict = Output.output_with_public_key(output, transaction_id)
         else:
-            out_dict = output_with_sub_conditions(output, transaction_id)
+            out_dict = Output.output_with_sub_conditions(output, transaction_id)
         return out_dict
 
     @staticmethod
@@ -111,24 +111,24 @@ class Output:
     def list_to_dict(output_list: list[Output]) -> list[dict]:
         return [output.to_dict() for output in output_list or []]
 
+    @staticmethod
+    def output_with_public_key(output, transaction_id) -> Output:
+        return Output(
+            transaction_id=transaction_id,
+            public_keys=output["public_keys"],
+            amount=output["amount"],
+            condition=Condition(
+                uri=output["condition"]["uri"], details=ConditionDetails.from_dict(output["condition"]["details"])
+            ),
+        )
 
-def output_with_public_key(output, transaction_id) -> Output:
-    return Output(
-        transaction_id=transaction_id,
-        public_keys=output["public_keys"],
-        amount=output["amount"],
-        condition=Condition(
-            uri=output["condition"]["uri"], details=ConditionDetails.from_dict(output["condition"]["details"])
-        ),
-    )
-
-
-def output_with_sub_conditions(output, transaction_id) -> Output:
-    return Output(
-        transaction_id=transaction_id,
-        public_keys=output["public_keys"],
-        amount=output["amount"],
-        condition=Condition(
-            uri=output["condition"]["uri"], details=ConditionDetails.from_dict(output["condition"]["details"])
-        ),
-    )
+    @staticmethod
+    def output_with_sub_conditions(output, transaction_id) -> Output:
+        return Output(
+            transaction_id=transaction_id,
+            public_keys=output["public_keys"],
+            amount=output["amount"],
+            condition=Condition(
+                uri=output["condition"]["uri"], details=ConditionDetails.from_dict(output["condition"]["details"])
+            ),
+        )

planetmint/commands/planetmint.py

@@ -14,23 +14,29 @@ import json
 import sys
 import planetmint
 
-from planetmint.core import rollback
-from planetmint.utils import load_node_key
+
 from transactions.common.transaction_mode_types import BROADCAST_TX_COMMIT
 from transactions.common.exceptions import DatabaseDoesNotExist, ValidationError
 from transactions.types.elections.vote import Vote
 from transactions.types.elections.chain_migration_election import ChainMigrationElection
 from transactions.types.elections.validator_utils import election_id_to_public_key
+from transactions.types.elections.validator_election import ValidatorElection
 from transactions.common.transaction import Transaction
-from planetmint import ValidatorElection, Planetmint
+
+
+from planetmint.abci.rpc import ABCI_RPC
+from planetmint.abci.utils import load_node_key
+from planetmint.application.validator import Validator
 from planetmint.backend import schema
 from planetmint.commands import utils
 from planetmint.commands.utils import configure_planetmint, input_on_stderr
-from planetmint.log import setup_logging
-from planetmint.tendermint_utils import public_key_from_base64
+from planetmint.config_utils import setup_logging
+from planetmint.abci.tendermint_utils import public_key_from_base64
+from planetmint.abci.rpc import MODE_COMMIT, MODE_LIST
 from planetmint.commands.election_types import elections
 from planetmint.version import __tm_supported_versions__
 from planetmint.config import Config
+from planetmint.model.models import Models
 
 logging.basicConfig(level=logging.INFO)
 logger = logging.getLogger(__name__)
@@ -118,7 +124,7 @@ def run_election_new(args, planet):
     globals()[f"run_election_new_{election_type}"](args, planet)
 
 
-def create_new_election(sk, planet, election_class, data):
+def create_new_election(sk, planet, election_class, data, abci_rpc):
     try:
         key = load_node_key(sk)
         voters = planet.get_recipients_list()
@@ -131,7 +137,9 @@ def create_new_election(sk, planet, election_class, data):
         logger.error(fd_404)
         return False
 
-    resp = planet.write_transaction(election, BROADCAST_TX_COMMIT)
+    resp = abci_rpc.write_transaction(
+        MODE_LIST, abci_rpc.tendermint_rpc_endpoint, MODE_COMMIT, election, BROADCAST_TX_COMMIT
+    )
     if resp == (202, ""):
         logger.info("[SUCCESS] Submitted proposal with id: {}".format(election.id))
         return election.id
@@ -140,7 +148,7 @@ def create_new_election(sk, planet, election_class, data):
         return False
 
 
-def run_election_new_upsert_validator(args, planet):
+def run_election_new_upsert_validator(args, planet, abci_rpc):
     """Initiates an election to add/update/remove a validator to an existing Planetmint network
 
     :param args: dict
@@ -164,10 +172,10 @@ def run_election_new_upsert_validator(args, planet):
         }
     ]
 
-    return create_new_election(args.sk, planet, ValidatorElection, new_validator)
+    return create_new_election(args.sk, planet, ValidatorElection, new_validator, abci_rpc)
 
 
-def run_election_new_chain_migration(args, planet):
+def run_election_new_chain_migration(args, planet, abci_rpc):
     """Initiates an election to halt block production
 
     :param args: dict
@@ -178,10 +186,10 @@ def run_election_new_chain_migration(args, planet):
     :return: election_id or `False` in case of failure
     """
 
-    return create_new_election(args.sk, planet, ChainMigrationElection, [{"data": {}}])
+    return create_new_election(args.sk, planet, ChainMigrationElection, [{"data": {}}], abci_rpc)
 
 
-def run_election_approve(args, planet):
+def run_election_approve(args, validator: Validator, abci_rpc):
     """Approve an election
 
     :param args: dict
@@ -194,7 +202,7 @@ def run_election_approve(args, planet):
     """
 
     key = load_node_key(args.sk)
-    tx = planet.get_transaction(args.election_id)
+    tx = validator.models.get_transaction(args.election_id)
     voting_powers = [v.amount for v in tx.outputs if key.public_key in v.public_keys]
     if len(voting_powers) > 0:
         voting_power = voting_powers[0]
@@ -206,9 +214,11 @@ def run_election_approve(args, planet):
     inputs = [i for i in tx_converted.to_inputs() if key.public_key in i.owners_before]
     election_pub_key = election_id_to_public_key(tx.id)
     approval = Vote.generate(inputs, [([election_pub_key], voting_power)], [tx.id]).sign([key.private_key])
-    planet.validate_transaction(approval)
+    validator.validate_transaction(approval)
 
-    resp = planet.write_transaction(approval, BROADCAST_TX_COMMIT)
+    resp = abci_rpc.write_transaction(
+        MODE_LIST, abci_rpc.tendermint_rpc_endpoint, MODE_COMMIT, approval, BROADCAST_TX_COMMIT
+    )
 
     if resp == (202, ""):
         logger.info("[SUCCESS] Your vote has been submitted")
@@ -218,7 +228,7 @@ def run_election_approve(args, planet):
         return False
 
 
-def run_election_show(args, planet):
+def run_election_show(args, validator: Validator):
     """Retrieves information about an election
 
     :param args: dict
@@ -228,12 +238,12 @@ def run_election_show(args, planet):
     :param planet: an instance of Planetmint
     """
 
-    election = planet.get_transaction(args.election_id)
+    election = validator.models.get_transaction(args.election_id)
     if not election:
         logger.error(f"No election found with election_id {args.election_id}")
         return
 
-    response = planet.show_election_status(election)
+    response = validator.show_election_status(election)
 
     logger.info(response)
 
@@ -241,8 +251,8 @@ def run_election_show(args, planet):
 
 
 def _run_init():
-    bdb = planetmint.Planetmint()
-    schema.init_database(bdb.connection)
+    validator = Validator()
+    schema.init_database(validator.models.connection)
 
 
 @configure_planetmint
@@ -269,13 +279,10 @@ def run_drop(args):
         print("Drop was executed, but spaces doesn't exist.", file=sys.stderr)
 
 
-def run_recover(b):
-    rollback(b)
-
-
 @configure_planetmint
 def run_start(args):
     """Start the processes to run the node"""
+    logger.info("Planetmint Version %s", planetmint.version.__version__)
 
     # Configure Logging
     setup_logging()
@@ -284,8 +291,8 @@ def run_start(args):
         logger.info("Initializing database")
         _run_init()
 
-    logger.info("Planetmint Version %s", planetmint.version.__version__)
-    run_recover(planetmint.lib.Planetmint())
+    validator = Validator()
+    validator.rollback()
 
     logger.info("Starting Planetmint main process.")
     from planetmint.start import start

planetmint/config.py

@@ -1,19 +1,10 @@
 import copy
 import logging
 import os
-
-# from planetmint.log import DEFAULT_LOGGING_CONFIG as log_config
-from planetmint.version import __version__  # noqa
 from decouple import config
 
-
-class Singleton(type):
-    _instances = {}
-
-    def __call__(cls, *args, **kwargs):
-        if cls not in cls._instances:
-            cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs)
-        return cls._instances[cls]
+from planetmint.utils import Singleton
+from planetmint.version import __version__
 
 
 class Config(metaclass=Singleton):

planetmint/config_utils.py

@@ -23,10 +23,14 @@ import logging
 import collections.abc
 
 from functools import lru_cache
+from logging.config import dictConfig as set_logging_config
+
 from pkg_resources import iter_entry_points, ResolutionError
-from planetmint.config import Config
+from transactions.common.exceptions import ConfigurationError
+
+from planetmint.config import Config, DEFAULT_LOGGING_CONFIG
+from planetmint.application.basevalidationrules import BaseValidationRules
 from transactions.common import exceptions
-from planetmint.validation import BaseValidationRules
 
 # TODO: move this to a proper configuration file for logging
 logging.getLogger("requests").setLevel(logging.WARNING)
@@ -306,3 +310,69 @@ def load_events_plugins(names=None):
             plugins.append((name, entry_point.load()))
 
     return plugins
+
+
+def _normalize_log_level(level):
+    try:
+        return level.upper()
+    except AttributeError as exc:
+        raise ConfigurationError("Log level must be a string!") from exc
+
+
+def setup_logging():
+    """Function to configure log handlers.
+    .. important::
+
+        Configuration, if needed, should be applied before invoking this
+        decorator, as starting the subscriber process for logging will
+        configure the root logger for the child process based on the
+        state of :obj:`planetmint.config` at the moment this decorator
+        is invoked.
+
+    """
+
+    logging_configs = DEFAULT_LOGGING_CONFIG
+    new_logging_configs = Config().get()["log"]
+
+    if "file" in new_logging_configs:
+        filename = new_logging_configs["file"]
+        logging_configs["handlers"]["file"]["filename"] = filename
+
+    if "error_file" in new_logging_configs:
+        error_filename = new_logging_configs["error_file"]
+        logging_configs["handlers"]["errors"]["filename"] = error_filename
+
+    if "level_console" in new_logging_configs:
+        level = _normalize_log_level(new_logging_configs["level_console"])
+        logging_configs["handlers"]["console"]["level"] = level
+
+    if "level_logfile" in new_logging_configs:
+        level = _normalize_log_level(new_logging_configs["level_logfile"])
+        logging_configs["handlers"]["file"]["level"] = level
+
+    if "fmt_console" in new_logging_configs:
+        fmt = new_logging_configs["fmt_console"]
+        logging_configs["formatters"]["console"]["format"] = fmt
+
+    if "fmt_logfile" in new_logging_configs:
+        fmt = new_logging_configs["fmt_logfile"]
+        logging_configs["formatters"]["file"]["format"] = fmt
+
+    if "datefmt_console" in new_logging_configs:
+        fmt = new_logging_configs["datefmt_console"]
+        logging_configs["formatters"]["console"]["datefmt"] = fmt
+
+    if "datefmt_logfile" in new_logging_configs:
+        fmt = new_logging_configs["datefmt_logfile"]
+        logging_configs["formatters"]["file"]["datefmt"] = fmt
+
+    log_levels = new_logging_configs.get("granular_levels", {})
+
+    for logger_name, level in log_levels.items():
+        level = _normalize_log_level(level)
+        try:
+            logging_configs["loggers"][logger_name]["level"] = level
+        except KeyError:
+            logging_configs["loggers"][logger_name] = {"level": level}
+
+    set_logging_config(logging_configs)

planetmint/ipc/events.py

@@ -0,0 +1,37 @@
+# Copyright © 2020 Interplanetary Database Association e.V.,
+# Planetmint and IPDB software contributors.
+# SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
+# Code is Apache-2.0 and docs are CC-BY-4.0
+
+POISON_PILL = "POISON_PILL"
+
+
+class EventTypes:
+    """Container class that holds all the possible
+    events Planetmint manages.
+    """
+
+    # If you add a new Event Type, make sure to add it
+    # to the docs in docs/server/source/event-plugin-api.rst
+    ALL = ~0
+    BLOCK_VALID = 1
+    BLOCK_INVALID = 2
+    # NEW_EVENT = 4
+    # NEW_EVENT = 8
+    # NEW_EVENT = 16...
+
+
+class Event:
+    """An Event."""
+
+    def __init__(self, event_type, event_data):
+        """Creates a new event.
+
+        Args:
+            event_type (int): the type of the event, see
+                :class:`~planetmint.events.EventTypes`
+            event_data (obj): the data of the event.
+        """
+
+        self.type = event_type
+        self.data = event_data

planetmint/ipc/exchange.py

@@ -1,45 +1,8 @@
-# Copyright © 2020 Interplanetary Database Association e.V.,
-# Planetmint and IPDB software contributors.
-# SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
-# Code is Apache-2.0 and docs are CC-BY-4.0
-
 from queue import Empty
 from collections import defaultdict
 import multiprocessing
 
-
-POISON_PILL = "POISON_PILL"
-
-
-class EventTypes:
-    """Container class that holds all the possible
-    events Planetmint manages.
-    """
-
-    # If you add a new Event Type, make sure to add it
-    # to the docs in docs/server/source/event-plugin-api.rst
-    ALL = ~0
-    BLOCK_VALID = 1
-    BLOCK_INVALID = 2
-    # NEW_EVENT = 4
-    # NEW_EVENT = 8
-    # NEW_EVENT = 16...
-
-
-class Event:
-    """An Event."""
-
-    def __init__(self, event_type, event_data):
-        """Creates a new event.
-
-        Args:
-            event_type (int): the type of the event, see
-                :class:`~planetmint.events.EventTypes`
-            event_data (obj): the data of the event.
-        """
-
-        self.type = event_type
-        self.data = event_data
+from planetmint.ipc.events import EventTypes, POISON_PILL
 
 
 class Exchange:

planetmint/lib.py

@@ -1,952 +0,0 @@
-# Copyright © 2020 Interplanetary Database Association e.V.,
-# Planetmint and IPDB software contributors.
-# SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
-# Code is Apache-2.0 and docs are CC-BY-4.0
-
-"""Module containing main contact points with Tendermint and
-MongoDB.
-
-"""
-import logging
-from planetmint.backend.connection import Connection
-
-import json
-import rapidjson
-import requests
-
-from itertools import chain
-from collections import namedtuple, OrderedDict
-from uuid import uuid4
-from hashlib import sha3_256
-from transactions import Transaction, Vote
-from transactions.common.crypto import public_key_from_ed25519_key
-from transactions.common.exceptions import (
-    SchemaValidationError,
-    ValidationError,
-    DuplicateTransaction,
-    InvalidSignature,
-    DoubleSpend,
-    InputDoesNotExist,
-    AssetIdMismatch,
-    AmountError,
-    MultipleInputsError,
-    InvalidProposer,
-    UnequalValidatorSet,
-    InvalidPowerChange,
-)
-from transactions.common.transaction import VALIDATOR_ELECTION, CHAIN_MIGRATION_ELECTION
-from transactions.common.transaction_mode_types import (
-    BROADCAST_TX_COMMIT,
-    BROADCAST_TX_ASYNC,
-    BROADCAST_TX_SYNC,
-)
-from transactions.common.output import Output as TransactionOutput
-from transactions.types.elections.election import Election
-from transactions.types.elections.validator_utils import election_id_to_public_key
-
-from planetmint.backend.models import Output, DbTransaction, Asset, MetaData
-from planetmint.backend.tarantool.const import (
-    TARANT_TABLE_GOVERNANCE,
-    TARANT_TABLE_TRANSACTION,
-)
-from planetmint.config import Config
-from planetmint import backend, config_utils, fastquery
-from planetmint.tendermint_utils import (
-    encode_transaction,
-    merkleroot,
-    key_from_base64,
-    public_key_to_base64,
-    encode_validator,
-    new_validator_set,
-)
-from planetmint.validation import BaseValidationRules
-from planetmint.const import GOVERNANCE_TRANSACTION_TYPES
-
-logger = logging.getLogger(__name__)
-
-
-class Planetmint(object):
-    """Planetmint API
-
-    Create, read, sign, write transactions to the database
-    """
-
-    def __init__(self, connection=None):
-        """Initialize the Planetmint instance
-
-        A Planetmint instance has several configuration parameters (e.g. host).
-        If a parameter value is passed as an argument to the Planetmint
-        __init__ method, then that is the value it will have.
-        Otherwise, the parameter value will come from an environment variable.
-        If that environment variable isn't set, then the value
-        will come from the local configuration file. And if that variable
-        isn't in the local configuration file, then the parameter will have
-        its default value (defined in planetmint.__init__).
-
-        Args:
-            connection (:class:`~planetmint.backend.connection.Connection`):
-                A connection to the database.
-        """
-        config_utils.autoconfigure()
-        self.mode_commit = BROADCAST_TX_COMMIT
-        self.mode_list = (BROADCAST_TX_ASYNC, BROADCAST_TX_SYNC, self.mode_commit)
-        self.tendermint_host = Config().get()["tendermint"]["host"]
-        self.tendermint_port = Config().get()["tendermint"]["port"]
-        self.endpoint = "http://{}:{}/".format(self.tendermint_host, self.tendermint_port)
-
-        validationPlugin = Config().get().get("validation_plugin")
-
-        if validationPlugin:
-            self.validation = config_utils.load_validation_plugin(validationPlugin)
-        else:
-            self.validation = BaseValidationRules
-        self.connection = connection if connection is not None else Connection()
-
-    def post_transaction(self, transaction, mode):
-        """Submit a valid transaction to the mempool."""
-        if not mode or mode not in self.mode_list:
-            raise ValidationError("Mode must be one of the following {}.".format(", ".join(self.mode_list)))
-
-        tx_dict = transaction.tx_dict if transaction.tx_dict else transaction.to_dict()
-        payload = {
-            "method": mode,
-            "jsonrpc": "2.0",
-            "params": [encode_transaction(tx_dict)],
-            "id": str(uuid4()),
-        }
-        # TODO: handle connection errors!
-        return requests.post(self.endpoint, json=payload)
-
-    def write_transaction(self, transaction, mode):
-        # This method offers backward compatibility with the Web API.
-        """Submit a valid transaction to the mempool."""
-        response = self.post_transaction(transaction, mode)
-        return self._process_post_response(response.json(), mode)
-
-    def _process_post_response(self, response, mode):
-        logger.debug(response)
-
-        error = response.get("error")
-        if error:
-            status_code = 500
-            message = error.get("message", "Internal Error")
-            data = error.get("data", "")
-
-            if "Tx already exists in cache" in data:
-                status_code = 400
-
-            return (status_code, message + " - " + data)
-
-        result = response["result"]
-        if mode == self.mode_commit:
-            check_tx_code = result.get("check_tx", {}).get("code", 0)
-            deliver_tx_code = result.get("deliver_tx", {}).get("code", 0)
-            error_code = check_tx_code or deliver_tx_code
-        else:
-            error_code = result.get("code", 0)
-
-        if error_code:
-            return (500, "Transaction validation failed")
-
-        return (202, "")
-
-    def store_bulk_transactions(self, transactions):
-        txns = []
-        gov_txns = []
-
-        for t in transactions:
-            transaction = t.tx_dict if t.tx_dict else rapidjson.loads(rapidjson.dumps(t.to_dict()))
-            if transaction["operation"] in GOVERNANCE_TRANSACTION_TYPES:
-                gov_txns.append(transaction)
-            else:
-                txns.append(transaction)
-
-        backend.query.store_transactions(self.connection, txns, TARANT_TABLE_TRANSACTION)
-        backend.query.store_transactions(self.connection, gov_txns, TARANT_TABLE_GOVERNANCE)
-
-    def delete_transactions(self, txs):
-        return backend.query.delete_transactions(self.connection, txs)
-
-    def update_utxoset(self, transaction):
-        self.updated__ = """Update the UTXO set given ``transaction``. That is, remove
-        the outputs that the given ``transaction`` spends, and add the
-        outputs that the given ``transaction`` creates.
-
-        Args:
-            transaction (:obj:`~planetmint.models.Transaction`): A new
-                transaction incoming into the system for which the UTXOF
-                set needs to be updated.
-        """
-        spent_outputs = [spent_output for spent_output in transaction.spent_outputs]
-        if spent_outputs:
-            self.delete_unspent_outputs(*spent_outputs)
-        self.store_unspent_outputs(*[utxo._asdict() for utxo in transaction.unspent_outputs])
-
-    def store_unspent_outputs(self, *unspent_outputs):
-        """Store the given ``unspent_outputs`` (utxos).
-
-        Args:
-            *unspent_outputs (:obj:`tuple` of :obj:`dict`): Variable
-                length tuple or list of unspent outputs.
-        """
-        if unspent_outputs:
-            return backend.query.store_unspent_outputs(self.connection, *unspent_outputs)
-
-    def get_utxoset_merkle_root(self):
-        """Returns the merkle root of the utxoset. This implies that
-        the utxoset is first put into a merkle tree.
-
-        For now, the merkle tree and its root will be computed each
-        time. This obviously is not efficient and a better approach
-        that limits the repetition of the same computation when
-        unnecesary should be sought. For instance, future optimizations
-        could simply re-compute the branches of the tree that were
-        affected by a change.
-
-        The transaction hash (id) and output index should be sufficient
-        to uniquely identify a utxo, and consequently only that
-        information from a utxo record is needed to compute the merkle
-        root. Hence, each node of the merkle tree should contain the
-        tuple (txid, output_index).
-
-        .. important:: The leaves of the tree will need to be sorted in
-            some kind of lexicographical order.
-
-        Returns:
-            str: Merkle root in hexadecimal form.
-        """
-        utxoset = backend.query.get_unspent_outputs(self.connection)
-        # TODO Once ready, use the already pre-computed utxo_hash field.
-        # See common/transactions.py for details.
-        hashes = [
-            sha3_256("{}{}".format(utxo["transaction_id"], utxo["output_index"]).encode()).digest() for utxo in utxoset
-        ]
-        # TODO Notice the sorted call!
-        return merkleroot(sorted(hashes))
-
-    def get_unspent_outputs(self):
-        """Get the utxoset.
-
-        Returns:
-            generator of unspent_outputs.
-        """
-        cursor = backend.query.get_unspent_outputs(self.connection)
-        return (record for record in cursor)
-
-    def delete_unspent_outputs(self, *unspent_outputs):
-        """Deletes the given ``unspent_outputs`` (utxos).
-
-        Args:
-            *unspent_outputs (:obj:`tuple` of :obj:`dict`): Variable
-                length tuple or list of unspent outputs.
-        """
-        if unspent_outputs:
-            return backend.query.delete_unspent_outputs(self.connection, *unspent_outputs)
-
-    def is_committed(self, transaction_id):
-        transaction = backend.query.get_transaction_single(self.connection, transaction_id)
-        return bool(transaction)
-
-    def get_transaction(self, transaction_id):
-        return backend.query.get_transaction_single(self.connection, transaction_id)
-
-    def get_transactions(self, txn_ids):
-        return backend.query.get_transactions(self.connection, txn_ids)
-
-    def get_transactions_filtered(self, asset_ids, operation=None, last_tx=False):
-        """Get a list of transactions filtered on some criteria"""
-        txids = backend.query.get_txids_filtered(self.connection, asset_ids, operation, last_tx)
-        for txid in txids:
-            yield self.get_transaction(txid)
-
-    def get_outputs_by_tx_id(self, txid):
-        return backend.query.get_outputs_by_tx_id(self.connection, txid)
-
-    def get_outputs_filtered(self, owner, spent=None):
-        """Get a list of output links filtered on some criteria
-
-        Args:
-            owner (str): base58 encoded public_key.
-            spent (bool): If ``True`` return only the spent outputs. If
-                          ``False`` return only unspent outputs. If spent is
-                          not specified (``None``) return all outputs.
-
-        Returns:
-            :obj:`list` of TransactionLink: list of ``txid`` s and ``output`` s
-            pointing to another transaction's condition
-        """
-        outputs = self.fastquery.get_outputs_by_public_key(owner)
-        if spent is None:
-            return outputs
-        elif spent is True:
-            return self.fastquery.filter_unspent_outputs(outputs)
-        elif spent is False:
-            return self.fastquery.filter_spent_outputs(outputs)
-
-    def get_spent(self, txid, output, current_transactions=[]):
-        transactions = backend.query.get_spent(self.connection, txid, output)
-
-        current_spent_transactions = []
-        for ctxn in current_transactions:
-            for ctxn_input in ctxn.inputs:
-                if ctxn_input.fulfills and ctxn_input.fulfills.txid == txid and ctxn_input.fulfills.output == output:
-                    current_spent_transactions.append(ctxn)
-
-        transaction = None
-        if len(transactions) + len(current_spent_transactions) > 1:
-            raise DoubleSpend('tx "{}" spends inputs twice'.format(txid))
-        elif transactions:
-            tx_id = transactions[0].id
-            tx = backend.query.get_transaction_single(self.connection, tx_id)
-            transaction = tx.to_dict()
-        elif current_spent_transactions:
-            transaction = current_spent_transactions[0]
-
-        return transaction
-
-    def store_block(self, block):
-        """Create a new block."""
-
-        return backend.query.store_block(self.connection, block)
-
-    def get_latest_block(self) -> dict:
-        """Get the block with largest height."""
-
-        return backend.query.get_latest_block(self.connection)
-
-    def get_block(self, block_id) -> dict:
-        """Get the block with the specified `block_id`.
-
-        Returns the block corresponding to `block_id` or None if no match is
-        found.
-
-        Args:
-            block_id (int): block id of the block to get.
-        """
-
-        block = backend.query.get_block(self.connection, block_id)
-        latest_block = self.get_latest_block()
-        latest_block_height = latest_block["height"] if latest_block else 0
-
-        if not block and block_id > latest_block_height:
-            return
-
-        return block
-
-    def get_block_containing_tx(self, txid):
-        """Retrieve the list of blocks (block ids) containing a
-           transaction with transaction id `txid`
-
-        Args:
-            txid (str): transaction id of the transaction to query
-
-        Returns:
-            Block id list (list(int))
-        """
-        block = backend.query.get_block_with_transaction(self.connection, txid)
-
-        return block
-
-    def validate_transaction(self, transaction, current_transactions=[]):
-        """Validate a transaction against the current status of the database."""
-
-        # CLEANUP: The conditional below checks for transaction in dict format.
-        # It would be better to only have a single format for the transaction
-        # throught the code base.
-        if isinstance(transaction, dict):
-            try:
-                transaction = Transaction.from_dict(transaction, False)
-            except SchemaValidationError as e:
-                logger.warning("Invalid transaction schema: %s", e.__cause__.message)
-                return False
-            except ValidationError as e:
-                logger.warning("Invalid transaction (%s): %s", type(e).__name__, e)
-                return False
-
-        if transaction.operation == Transaction.CREATE:
-            self.validate_create_inputs(transaction, current_transactions)
-        elif transaction.operation in [Transaction.TRANSFER, Transaction.VOTE]:
-            self.validate_transfer_inputs(transaction, current_transactions)
-        elif transaction.operation in [Transaction.COMPOSE]:
-            self.validate_compose_inputs(transaction, current_transactions)
-
-        return transaction
-
-    def validate_create_inputs(self, tx, current_transactions=[]) -> bool:
-        duplicates = any(txn for txn in current_transactions if txn.id == tx.id)
-        if self.is_committed(tx.id) or duplicates:
-            raise DuplicateTransaction("transaction `{}` already exists".format(tx.id))
-
-        fulfilling_inputs = [i for i in tx.inputs if i.fulfills is not None and i.fulfills.txid is not None]
-
-        if len(fulfilling_inputs) > 0:
-            input_txs, input_conditions = self.get_input_txs_and_conditions(fulfilling_inputs, current_transactions)
-            create_asset = tx.assets[0]
-            input_asset = input_txs[0].assets[tx.inputs[0].fulfills.output]["data"]
-            if create_asset != input_asset:
-                raise ValidationError("CREATE must have matching asset description with input transaction")
-            if input_txs[0].operation != Transaction.DECOMPOSE:
-                raise SchemaValidationError("CREATE can only consume DECOMPOSE outputs")
-
-        return True
-
-    def validate_transfer_inputs(self, tx, current_transactions=[]) -> bool:
-        input_txs, input_conditions = self.get_input_txs_and_conditions(tx.inputs, current_transactions)
-
-        self.validate_input_conditions(tx, input_conditions)
-
-        self.validate_asset_id(tx, input_txs)
-
-        self.validate_inputs_distinct(tx)
-
-        input_amount = sum([input_condition.amount for input_condition in input_conditions])
-        output_amount = sum([output_condition.amount for output_condition in tx.outputs])
-
-        if output_amount != input_amount:
-            raise AmountError(
-                (
-                    "The amount used in the inputs `{}`" " needs to be same as the amount used" " in the outputs `{}`"
-                ).format(input_amount, output_amount)
-            )
-
-        return True
-
-    def validate_compose_inputs(self, tx, current_transactions=[]) -> bool:
-        input_txs, input_conditions = self.get_input_txs_and_conditions(tx.inputs, current_transactions)
-
-        self.validate_input_conditions(tx, input_conditions)
-
-        self.validate_asset_id(tx, input_txs)
-
-        self.validate_inputs_distinct(tx)
-
-        return True
-
-    def get_input_txs_and_conditions(self, inputs, current_transactions=[]):
-        # store the inputs so that we can check if the asset ids match
-        input_txs = []
-        input_conditions = []
-
-        for input_ in inputs:
-            input_txid = input_.fulfills.txid
-            input_tx = self.get_transaction(input_txid)
-            _output = self.get_outputs_by_tx_id(input_txid)
-            if input_tx is None:
-                for ctxn in current_transactions:
-                    if ctxn.id == input_txid:
-                        ctxn_dict = ctxn.to_dict()
-                        input_tx = DbTransaction.from_dict(ctxn_dict)
-                        _output = [
-                            Output.from_dict(output, index, ctxn.id)
-                            for index, output in enumerate(ctxn_dict["outputs"])
-                        ]
-
-            if input_tx is None:
-                raise InputDoesNotExist("input `{}` doesn't exist".format(input_txid))
-
-            spent = self.get_spent(input_txid, input_.fulfills.output, current_transactions)
-            if spent:
-                raise DoubleSpend("input `{}` was already spent".format(input_txid))
-
-            output = _output[input_.fulfills.output]
-            input_conditions.append(output)
-            tx_dict = input_tx.to_dict()
-            tx_dict["outputs"] = Output.list_to_dict(_output)
-            tx_dict = DbTransaction.remove_generated_fields(tx_dict)
-            pm_transaction = Transaction.from_dict(tx_dict, False)
-            input_txs.append(pm_transaction)
-
-        return (input_txs, input_conditions)
-
-    def validate_input_conditions(self, tx, input_conditions):
-        # convert planetmint.Output objects to transactions.common.Output objects
-        input_conditions_dict = Output.list_to_dict(input_conditions)
-        input_conditions_converted = []
-        for input_cond in input_conditions_dict:
-            input_conditions_converted.append(TransactionOutput.from_dict(input_cond))
-
-        if not tx.inputs_valid(input_conditions_converted):
-            raise InvalidSignature("Transaction signature is invalid.")
-
-    def validate_asset_id(self, tx: Transaction, input_txs: list):
-        # validate asset
-        if tx.operation != Transaction.COMPOSE:
-            asset_id = tx.get_asset_id(input_txs)
-            if asset_id != Transaction.read_out_asset_id(tx):
-                raise AssetIdMismatch(
-                    ("The asset id of the input does not" " match the asset id of the" " transaction")
-                )
-        else:
-            asset_ids = Transaction.get_asset_ids(input_txs)
-            if Transaction.read_out_asset_id(tx) in asset_ids:
-                raise AssetIdMismatch(("The asset ID of the compose must be different to all of its input asset IDs"))
-
-    def validate_inputs_distinct(self, tx):
-        # Validate that all inputs are distinct
-        links = [i.fulfills.to_uri() for i in tx.inputs]
-        if len(links) != len(set(links)):
-            raise DoubleSpend('tx "{}" spends inputs twice'.format(tx.id))
-
-    def is_valid_transaction(self, tx, current_transactions=[]):
-        # NOTE: the function returns the Transaction object in case
-        # the transaction is valid
-        try:
-            return self.validate_transaction(tx, current_transactions)
-        except ValidationError as e:
-            logger.warning("Invalid transaction (%s): %s", type(e).__name__, e)
-            return False
-
-    def get_assets(self, asset_ids) -> list[Asset]:
-        """Return a list of assets that match the asset_ids
-
-        Args:
-            asset_ids (:obj:`list` of :obj:`str`): A list of asset_ids to
-                retrieve from the database.
-
-        Returns:
-            list: The list of assets returned from the database.
-        """
-        return backend.query.get_assets(self.connection, asset_ids)
-
-    def get_assets_by_cid(self, asset_cid, **kwargs) -> list[dict]:
-        asset_txs = backend.query.get_transactions_by_asset(self.connection, asset_cid, **kwargs)
-        # flatten and return all found assets
-        return list(chain.from_iterable([Asset.list_to_dict(tx.assets) for tx in asset_txs]))
-
-    def get_metadata(self, txn_ids) -> list[MetaData]:
-        """Return a list of metadata that match the transaction ids (txn_ids)
-
-        Args:
-            txn_ids (:obj:`list` of :obj:`str`): A list of txn_ids to
-                retrieve from the database.
-
-        Returns:
-            list: The list of metadata returned from the database.
-        """
-        return backend.query.get_metadata(self.connection, txn_ids)
-
-    def get_metadata_by_cid(self, metadata_cid, **kwargs) -> list[str]:
-        metadata_txs = backend.query.get_transactions_by_metadata(self.connection, metadata_cid, **kwargs)
-        return [tx.metadata.metadata for tx in metadata_txs]
-
-    @property
-    def fastquery(self):
-        return fastquery.FastQuery(self.connection)
-
-    def get_validator_set(self, height=None):
-        return backend.query.get_validator_set(self.connection, height)
-
-    def get_validators(self, height=None):
-        result = self.get_validator_set(height)
-        return [] if result is None else result["validators"]
-
-    def get_election(self, election_id):
-        return backend.query.get_election(self.connection, election_id)
-
-    def get_pre_commit_state(self):
-        return backend.query.get_pre_commit_state(self.connection)
-
-    def store_pre_commit_state(self, state):
-        return backend.query.store_pre_commit_state(self.connection, state)
-
-    def store_validator_set(self, height, validators):
-        """Store validator set at a given `height`.
-        NOTE: If the validator set already exists at that `height` then an
-        exception will be raised.
-        """
-        return backend.query.store_validator_set(self.connection, {"height": height, "validators": validators})
-
-    def delete_validator_set(self, height):
-        return backend.query.delete_validator_set(self.connection, height)
-
-    def store_abci_chain(self, height, chain_id, is_synced=True):
-        return backend.query.store_abci_chain(self.connection, height, chain_id, is_synced)
-
-    def delete_abci_chain(self, height):
-        return backend.query.delete_abci_chain(self.connection, height)
-
-    def get_latest_abci_chain(self):
-        return backend.query.get_latest_abci_chain(self.connection)
-
-    def migrate_abci_chain(self):
-        """Generate and record a new ABCI chain ID. New blocks are not
-        accepted until we receive an InitChain ABCI request with
-        the matching chain ID and validator set.
-
-        Chain ID is generated based on the current chain and height.
-        `chain-X` => `chain-X-migrated-at-height-5`.
-        `chain-X-migrated-at-height-5` => `chain-X-migrated-at-height-21`.
-
-        If there is no known chain (we are at genesis), the function returns.
-        """
-        latest_chain = self.get_latest_abci_chain()
-        if latest_chain is None:
-            return
-
-        block = self.get_latest_block()
-
-        suffix = "-migrated-at-height-"
-        chain_id = latest_chain["chain_id"]
-        block_height_str = str(block["height"])
-        new_chain_id = chain_id.split(suffix)[0] + suffix + block_height_str
-
-        self.store_abci_chain(block["height"] + 1, new_chain_id, False)
-
-    def store_election(self, election_id, height, is_concluded):
-        return backend.query.store_election(self.connection, election_id, height, is_concluded)
-
-    def store_elections(self, elections):
-        return backend.query.store_elections(self.connection, elections)
-
-    def delete_elections(self, height):
-        return backend.query.delete_elections(self.connection, height)
-
-    # NOTE: moved here from Election needs to be placed somewhere else
-    def get_validators_dict(self, height=None):
-        """Return a dictionary of validators with key as `public_key` and
-        value as the `voting_power`
-        """
-        validators = {}
-        for validator in self.get_validators(height):
-            # NOTE: we assume that Tendermint encodes public key in base64
-            public_key = public_key_from_ed25519_key(key_from_base64(validator["public_key"]["value"]))
-            validators[public_key] = validator["voting_power"]
-
-        return validators
-
-    def validate_election(self, transaction, current_transactions=[]):  # TODO: move somewhere else
-        """Validate election transaction
-
-        NOTE:
-        * A valid election is initiated by an existing validator.
-
-        * A valid election is one where voters are validators and votes are
-          allocated according to the voting power of each validator node.
-
-        Args:
-            :param planet: (Planetmint) an instantiated planetmint.lib.Planetmint object.
-            :param current_transactions: (list) A list of transactions to be validated along with the election
-
-        Returns:
-            Election: a Election object or an object of the derived Election subclass.
-
-        Raises:
-            ValidationError: If the election is invalid
-        """
-
-        duplicates = any(txn for txn in current_transactions if txn.id == transaction.id)
-        if self.is_committed(transaction.id) or duplicates:
-            raise DuplicateTransaction("transaction `{}` already exists".format(transaction.id))
-
-        current_validators = self.get_validators_dict()
-
-        # NOTE: Proposer should be a single node
-        if len(transaction.inputs) != 1 or len(transaction.inputs[0].owners_before) != 1:
-            raise MultipleInputsError("`tx_signers` must be a list instance of length one")
-
-        # NOTE: Check if the proposer is a validator.
-        [election_initiator_node_pub_key] = transaction.inputs[0].owners_before
-        if election_initiator_node_pub_key not in current_validators.keys():
-            raise InvalidProposer("Public key is not a part of the validator set")
-
-        # NOTE: Check if all validators have been assigned votes equal to their voting power
-        if not self.is_same_topology(current_validators, transaction.outputs):
-            raise UnequalValidatorSet("Validator set much be exactly same to the outputs of election")
-
-        if transaction.operation == VALIDATOR_ELECTION:
-            self.validate_validator_election(transaction)
-
-        return transaction
-
-    def validate_validator_election(self, transaction):  # TODO: move somewhere else
-        """For more details refer BEP-21: https://github.com/planetmint/BEPs/tree/master/21"""
-
-        current_validators = self.get_validators_dict()
-
-        # NOTE: change more than 1/3 of the current power is not allowed
-        if transaction.get_assets()[0]["data"]["power"] >= (1 / 3) * sum(current_validators.values()):
-            raise InvalidPowerChange("`power` change must be less than 1/3 of total power")
-
-    def get_election_status(self, transaction):
-        election = self.get_election(transaction.id)
-        if election and election["is_concluded"]:
-            return Election.CONCLUDED
-
-        return Election.INCONCLUSIVE if self.has_validator_set_changed(transaction) else Election.ONGOING
-
-    def has_validator_set_changed(self, transaction):  # TODO: move somewhere else
-        latest_change = self.get_validator_change()
-        if latest_change is None:
-            return False
-
-        latest_change_height = latest_change["height"]
-
-        election = self.get_election(transaction.id)
-
-        return latest_change_height > election["height"]
-
-    def get_validator_change(self):  # TODO: move somewhere else
-        """Return the validator set from the most recent approved block
-
-        :return: {
-            'height': <block_height>,
-            'validators': <validator_set>
-        }
-        """
-        latest_block = self.get_latest_block()
-        if latest_block is None:
-            return None
-        return self.get_validator_set(latest_block["height"])
-
-    def get_validator_dict(self, height=None):
-        """Return a dictionary of validators with key as `public_key` and
-        value as the `voting_power`
-        """
-        validators = {}
-        for validator in self.get_validators(height):
-            # NOTE: we assume that Tendermint encodes public key in base64
-            public_key = public_key_from_ed25519_key(key_from_base64(validator["public_key"]["value"]))
-            validators[public_key] = validator["voting_power"]
-
-        return validators
-
-    def get_recipients_list(self):
-        """Convert validator dictionary to a recipient list for `Transaction`"""
-
-        recipients = []
-        for public_key, voting_power in self.get_validator_dict().items():
-            recipients.append(([public_key], voting_power))
-
-        return recipients
-
-    def show_election_status(self, transaction):
-        data = transaction.assets[0]
-        data = data.to_dict()["data"]
-        if "public_key" in data.keys():
-            data["public_key"] = public_key_to_base64(data["public_key"]["value"])
-        response = ""
-        for k, v in data.items():
-            if k != "seed":
-                response += f"{k}={v}\n"
-        response += f"status={self.get_election_status(transaction)}"
-
-        if transaction.operation == CHAIN_MIGRATION_ELECTION:
-            response = self.append_chain_migration_status(response)
-
-        return response
-
-    def append_chain_migration_status(self, status):
-        chain = self.get_latest_abci_chain()
-        if chain is None or chain["is_synced"]:
-            return status
-
-        status += f'\nchain_id={chain["chain_id"]}'
-        block = self.get_latest_block()
-        status += f'\napp_hash={block["app_hash"]}'
-        validators = [
-            {
-                "pub_key": {
-                    "type": "tendermint/PubKeyEd25519",
-                    "value": k,
-                },
-                "power": v,
-            }
-            for k, v in self.get_validator_dict().items()
-        ]
-        status += f"\nvalidators={json.dumps(validators, indent=4)}"
-        return status
-
-    def is_same_topology(cls, current_topology, election_topology):
-        voters = {}
-        for voter in election_topology:
-            if len(voter.public_keys) > 1:
-                return False
-
-            [public_key] = voter.public_keys
-            voting_power = voter.amount
-            voters[public_key] = voting_power
-
-        # Check whether the voters and their votes is same to that of the
-        # validators and their voting power in the network
-        return current_topology == voters
-
-    def count_votes(self, election_pk, transactions):
-        votes = 0
-        for txn in transactions:
-            if txn.operation == Vote.OPERATION:
-                for output in txn.outputs:
-                    # NOTE: We enforce that a valid vote to election id will have only
-                    # election_pk in the output public keys, including any other public key
-                    # along with election_pk will lead to vote being not considered valid.
-                    if len(output.public_keys) == 1 and [election_pk] == output.public_keys:
-                        votes = votes + output.amount
-        return votes
-
-    def get_commited_votes(self, transaction, election_pk=None):  # TODO: move somewhere else
-        if election_pk is None:
-            election_pk = election_id_to_public_key(transaction.id)
-        txns = backend.query.get_asset_tokens_for_public_key(self.connection, transaction.id, election_pk)
-        return self.count_votes(election_pk, txns)
-
-    def _get_initiated_elections(self, height, txns):  # TODO: move somewhere else
-        elections = []
-        for tx in txns:
-            if not isinstance(tx, Election):
-                continue
-
-            elections.append({"election_id": tx.id, "height": height, "is_concluded": False})
-        return elections
-
-    def _get_votes(self, txns):  # TODO: move somewhere else
-        elections = OrderedDict()
-        for tx in txns:
-            if not isinstance(tx, Vote):
-                continue
-            election_id = Transaction.read_out_asset_id(tx)
-            if election_id not in elections:
-                elections[election_id] = []
-            elections[election_id].append(tx)
-        return elections
-
-    def process_block(self, new_height, txns):  # TODO: move somewhere else
-        """Looks for election and vote transactions inside the block, records
-        and processes elections.
-
-        Every election is recorded in the database.
-
-        Every vote has a chance to conclude the corresponding election. When
-        an election is concluded, the corresponding database record is
-        marked as such.
-
-        Elections and votes are processed in the order in which they
-        appear in the block. Elections are concluded in the order of
-        appearance of their first votes in the block.
-
-        For every election concluded in the block, calls its `on_approval`
-        method. The returned value of the last `on_approval`, if any,
-        is a validator set update to be applied in one of the following blocks.
-
-        `on_approval` methods are implemented by elections of particular type.
-        The method may contain side effects but should be idempotent. To account
-        for other concluded elections, if it requires so, the method should
-        rely on the database state.
-        """
-        # elections initiated in this block
-        initiated_elections = self._get_initiated_elections(new_height, txns)
-
-        if initiated_elections:
-            self.store_elections(initiated_elections)
-
-        # elections voted for in this block and their votes
-        elections = self._get_votes(txns)
-
-        validator_update = None
-        for election_id, votes in elections.items():
-            election = self.get_transaction(election_id)
-            if election is None:
-                continue
-
-            if not self.has_election_concluded(election, votes):
-                continue
-
-            validator_update = self.approve_election(election, new_height)
-            self.store_election(election.id, new_height, is_concluded=True)
-
-        return [validator_update] if validator_update else []
-
-    def has_election_concluded(self, transaction, current_votes=[]):  # TODO: move somewhere else
-        """Check if the election can be concluded or not.
-
-        * Elections can only be concluded if the validator set has not changed
-          since the election was initiated.
-        * Elections can be concluded only if the current votes form a supermajority.
-
-        Custom elections may override this function and introduce additional checks.
-        """
-        if self.has_validator_set_changed(transaction):
-            return False
-
-        if transaction.operation == VALIDATOR_ELECTION:
-            if not self.has_validator_election_concluded():
-                return False
-
-        if transaction.operation == CHAIN_MIGRATION_ELECTION:
-            if not self.has_chain_migration_concluded():
-                return False
-
-        election_pk = election_id_to_public_key(transaction.id)
-        votes_committed = self.get_commited_votes(transaction, election_pk)
-        votes_current = self.count_votes(election_pk, current_votes)
-
-        total_votes = sum(int(output.amount) for output in transaction.outputs)
-        if (votes_committed < (2 / 3) * total_votes) and (votes_committed + votes_current >= (2 / 3) * total_votes):
-            return True
-
-        return False
-
-    def has_validator_election_concluded(self):  # TODO: move somewhere else
-        latest_block = self.get_latest_block()
-        if latest_block is not None:
-            latest_block_height = latest_block["height"]
-            latest_validator_change = self.get_validator_set()["height"]
-
-            # TODO change to `latest_block_height + 3` when upgrading to Tendermint 0.24.0.
-            if latest_validator_change == latest_block_height + 2:
-                # do not conclude the election if there is a change assigned already
-                return False
-
-        return True
-
-    def has_chain_migration_concluded(self):  # TODO: move somewhere else
-        chain = self.get_latest_abci_chain()
-        if chain is not None and not chain["is_synced"]:
-            # do not conclude the migration election if
-            # there is another migration in progress
-            return False
-
-        return True
-
-    def rollback_election(self, new_height, txn_ids):  # TODO: move somewhere else
-        """Looks for election and vote transactions inside the block and
-        cleans up the database artifacts possibly created in `process_blocks`.
-
-        Part of the `end_block`/`commit` crash recovery.
-        """
-
-        # delete election records for elections initiated at this height and
-        # elections concluded at this height
-        self.delete_elections(new_height)
-
-        txns = [self.get_transaction(tx_id) for tx_id in txn_ids]
-
-        txns = [Transaction.from_dict(tx.to_dict()) for tx in txns if tx]
-
-        elections = self._get_votes(txns)
-        for election_id in elections:
-            election = self.get_transaction(election_id)
-            if election.operation == VALIDATOR_ELECTION:
-                # TODO change to `new_height + 2` when upgrading to Tendermint 0.24.0.
-                self.delete_validator_set(new_height + 1)
-            if election.operation == CHAIN_MIGRATION_ELECTION:
-                self.delete_abci_chain(new_height)
-
-    def approve_election(self, election, new_height):
-        """Override to update the database state according to the
-        election rules. Consider the current database state to account for
-        other concluded elections, if required.
-        """
-        if election.operation == CHAIN_MIGRATION_ELECTION:
-            self.migrate_abci_chain()
-        if election.operation == VALIDATOR_ELECTION:
-            validator_updates = [election.assets[0].data]
-            curr_validator_set = self.get_validators(new_height)
-            updated_validator_set = new_validator_set(curr_validator_set, validator_updates)
-
-            updated_validator_set = [v for v in updated_validator_set if v["voting_power"] > 0]
-
-            # TODO change to `new_height + 2` when upgrading to Tendermint 0.24.0.
-            self.store_validator_set(new_height + 1, updated_validator_set)
-            return encode_validator(election.assets[0].data)
-
-
-Block = namedtuple("Block", ("app_hash", "height", "transactions"))

planetmint/log.py

@@ -1,75 +0,0 @@
-# Copyright © 2020 Interplanetary Database Association e.V.,
-# Planetmint and IPDB software contributors.
-# SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
-# Code is Apache-2.0 and docs are CC-BY-4.0
-
-from transactions.common.exceptions import ConfigurationError
-from logging.config import dictConfig as set_logging_config
-from planetmint.config import Config, DEFAULT_LOGGING_CONFIG
-
-
-def _normalize_log_level(level):
-    try:
-        return level.upper()
-    except AttributeError as exc:
-        raise ConfigurationError("Log level must be a string!") from exc
-
-
-def setup_logging():
-    """Function to configure log hadlers.
-
-    .. important::
-
-        Configuration, if needed, should be applied before invoking this
-        decorator, as starting the subscriber process for logging will
-        configure the root logger for the child process based on the
-        state of :obj:`planetmint.config` at the moment this decorator
-        is invoked.
-
-    """
-
-    logging_configs = DEFAULT_LOGGING_CONFIG
-    new_logging_configs = Config().get()["log"]
-
-    if "file" in new_logging_configs:
-        filename = new_logging_configs["file"]
-        logging_configs["handlers"]["file"]["filename"] = filename
-
-    if "error_file" in new_logging_configs:
-        error_filename = new_logging_configs["error_file"]
-        logging_configs["handlers"]["errors"]["filename"] = error_filename
-
-    if "level_console" in new_logging_configs:
-        level = _normalize_log_level(new_logging_configs["level_console"])
-        logging_configs["handlers"]["console"]["level"] = level
-
-    if "level_logfile" in new_logging_configs:
-        level = _normalize_log_level(new_logging_configs["level_logfile"])
-        logging_configs["handlers"]["file"]["level"] = level
-
-    if "fmt_console" in new_logging_configs:
-        fmt = new_logging_configs["fmt_console"]
-        logging_configs["formatters"]["console"]["format"] = fmt
-
-    if "fmt_logfile" in new_logging_configs:
-        fmt = new_logging_configs["fmt_logfile"]
-        logging_configs["formatters"]["file"]["format"] = fmt
-
-    if "datefmt_console" in new_logging_configs:
-        fmt = new_logging_configs["datefmt_console"]
-        logging_configs["formatters"]["console"]["datefmt"] = fmt
-
-    if "datefmt_logfile" in new_logging_configs:
-        fmt = new_logging_configs["datefmt_logfile"]
-        logging_configs["formatters"]["file"]["datefmt"] = fmt
-
-    log_levels = new_logging_configs.get("granular_levels", {})
-
-    for logger_name, level in log_levels.items():
-        level = _normalize_log_level(level)
-        try:
-            logging_configs["loggers"][logger_name]["level"] = level
-        except KeyError:
-            logging_configs["loggers"][logger_name] = {"level": level}
-
-    set_logging_config(logging_configs)

planetmint/model/fastquery.py

@@ -3,10 +3,11 @@
 # SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
 # Code is Apache-2.0 and docs are CC-BY-4.0
 
-from planetmint.utils import condition_details_has_owner
 from planetmint.backend import query
 from transactions.common.transaction import TransactionLink
 
+from planetmint.backend.models.output import ConditionDetails
+
 
 class FastQuery:
     """Database queries that join on block results from a single node."""
@@ -45,3 +46,31 @@ class FastQuery:
         txs = query.get_spending_transactions(self.connection, links)
         spends = {TransactionLink.from_dict(input.fulfills.to_dict()) for tx in txs for input in tx.inputs}
         return [ff for ff in outputs if ff in spends]
+
+
+# TODO: Rename this function, it's handling fulfillments not conditions
+def condition_details_has_owner(condition_details, owner):
+    """Check if the public_key of owner is in the condition details
+    as an Ed25519Fulfillment.public_key
+
+    Args:
+        condition_details (dict): dict with condition details
+        owner (str): base58 public key of owner
+
+    Returns:
+        bool: True if the public key is found in the condition details, False otherwise
+
+    """
+    if isinstance(condition_details, ConditionDetails) and condition_details.sub_conditions is not None:
+        result = condition_details_has_owner(condition_details.sub_conditions, owner)
+        if result:
+            return True
+    elif isinstance(condition_details, list):
+        for subcondition in condition_details:
+            result = condition_details_has_owner(subcondition, owner)
+            if result:
+                return True
+    else:
+        if condition_details.public_key is not None and owner == condition_details.public_key:
+            return True
+    return False

planetmint/model/models.py

@@ -0,0 +1,283 @@
+import rapidjson
+from itertools import chain
+
+from transactions import Transaction
+from transactions.common.exceptions import DoubleSpend
+from transactions.common.crypto import public_key_from_ed25519_key
+from transactions.common.exceptions import InputDoesNotExist
+
+from planetmint import config_utils, backend
+from planetmint.const import GOVERNANCE_TRANSACTION_TYPES
+from planetmint.backend.connection import Connection
+from planetmint.backend.tarantool.const import TARANT_TABLE_TRANSACTION, TARANT_TABLE_GOVERNANCE
+from planetmint.model.fastquery import FastQuery
+from planetmint.abci.tendermint_utils import key_from_base64
+
+from planetmint.backend.models.block import Block
+from planetmint.backend.models.output import Output
+from planetmint.backend.models.asset import Asset
+from planetmint.backend.models.metadata import MetaData
+from planetmint.backend.models.dbtransaction import DbTransaction
+
+
+class Models:
+    def __init__(self, database_connection=None):
+        config_utils.autoconfigure()
+        self.connection = database_connection if database_connection is not None else Connection()
+
+    def store_bulk_transactions(self, transactions):
+        txns = []
+        gov_txns = []
+
+        for t in transactions:
+            transaction = t.tx_dict if t.tx_dict else rapidjson.loads(rapidjson.dumps(t.to_dict()))
+            if transaction["operation"] in GOVERNANCE_TRANSACTION_TYPES:
+                gov_txns.append(transaction)
+            else:
+                txns.append(transaction)
+
+        backend.query.store_transactions(self.connection, txns, TARANT_TABLE_TRANSACTION)
+        backend.query.store_transactions(self.connection, gov_txns, TARANT_TABLE_GOVERNANCE)
+
+    def delete_transactions(self, txs):
+        return backend.query.delete_transactions(self.connection, txs)
+
+    def is_committed(self, transaction_id):
+        transaction = backend.query.get_transaction_single(self.connection, transaction_id)
+        return bool(transaction)
+
+    def get_transaction(self, transaction_id):
+        return backend.query.get_transaction_single(self.connection, transaction_id)
+
+    def get_transactions(self, txn_ids):
+        return backend.query.get_transactions(self.connection, txn_ids)
+
+    def get_transactions_filtered(self, asset_ids, operation=None, last_tx=False):
+        """Get a list of transactions filtered on some criteria"""
+        txids = backend.query.get_txids_filtered(self.connection, asset_ids, operation, last_tx)
+        for txid in txids:
+            yield self.get_transaction(txid)
+
+    def get_outputs_by_tx_id(self, txid):
+        return backend.query.get_outputs_by_tx_id(self.connection, txid)
+
+    def get_outputs_filtered(self, owner, spent=None):
+        """Get a list of output links filtered on some criteria
+
+        Args:
+            owner (str): base58 encoded public_key.
+            spent (bool): If ``True`` return only the spent outputs. If
+                          ``False`` return only unspent outputs. If spent is
+                          not specified (``None``) return all outputs.
+
+        Returns:
+            :obj:`list` of TransactionLink: list of ``txid`` s and ``output`` s
+            pointing to another transaction's condition
+        """
+        outputs = self.fastquery.get_outputs_by_public_key(owner)
+        if spent is None:
+            return outputs
+        elif spent is True:
+            return self.fastquery.filter_unspent_outputs(outputs)
+        elif spent is False:
+            return self.fastquery.filter_spent_outputs(outputs)
+
+    def store_block(self, block):
+        """Create a new block."""
+
+        return backend.query.store_block(self.connection, block)
+
+    def get_latest_block(self) -> dict:
+        """Get the block with largest height."""
+
+        return backend.query.get_latest_block(self.connection)
+
+    def get_block(self, block_id) -> dict:
+        """Get the block with the specified `block_id`.
+
+        Returns the block corresponding to `block_id` or None if no match is
+        found.
+
+        Args:
+            block_id (int): block id of the block to get.
+        """
+
+        block = backend.query.get_block(self.connection, block_id)
+        latest_block = self.get_latest_block()
+        latest_block_height = latest_block["height"] if latest_block else 0
+
+        if not block and block_id > latest_block_height:
+            return
+
+        return block
+
+    def delete_abci_chain(self, height):
+        return backend.query.delete_abci_chain(self.connection, height)
+
+    def get_latest_abci_chain(self):
+        return backend.query.get_latest_abci_chain(self.connection)
+
+    def store_election(self, election_id, height, is_concluded):
+        return backend.query.store_election(self.connection, election_id, height, is_concluded)
+
+    def store_elections(self, elections):
+        return backend.query.store_elections(self.connection, elections)
+
+    def delete_elections(self, height):
+        return backend.query.delete_elections(self.connection, height)
+
+    # NOTE: moved here from Election needs to be placed somewhere else
+    def get_validators_dict(self, height=None):
+        """Return a dictionary of validators with key as `public_key` and
+        value as the `voting_power`
+        """
+        validators = {}
+        for validator in self.get_validators(height):
+            # NOTE: we assume that Tendermint encodes public key in base64
+            public_key = public_key_from_ed25519_key(key_from_base64(validator["public_key"]["value"]))
+            validators[public_key] = validator["voting_power"]
+
+        return validators
+
+    def get_spent(self, txid, output, current_transactions=[]) -> DbTransaction:
+        transactions = backend.query.get_spent(self.connection, txid, output)
+
+        current_spent_transactions = []
+        for ctxn in current_transactions:
+            for ctxn_input in ctxn.inputs:
+                if ctxn_input.fulfills and ctxn_input.fulfills.txid == txid and ctxn_input.fulfills.output == output:
+                    current_spent_transactions.append(ctxn)
+
+        transaction = None
+        if len(transactions) + len(current_spent_transactions) > 1:
+            raise DoubleSpend('tx "{}" spends inputs twice'.format(txid))
+        elif transactions:
+            tx_id = transactions[0].id
+            tx = backend.query.get_transaction_single(self.connection, tx_id)
+            transaction = tx.to_dict()
+        elif current_spent_transactions:
+            transaction = current_spent_transactions[0]
+
+        return transaction
+
+    def get_block_containing_tx(self, txid) -> Block:
+        """
+        Retrieve the list of blocks (block ids) containing a
+           transaction with transaction id `txid`
+
+        Args:
+            txid (str): transaction id of the transaction to query
+
+        Returns:
+            Block id list (list(int))
+        """
+        block = backend.query.get_block_with_transaction(self.connection, txid)
+
+        return block
+
+    def get_input_txs_and_conditions(self, inputs, current_transactions=[]):
+        # store the inputs so that we can check if the asset ids match
+        input_txs = []
+        input_conditions = []
+
+        for input_ in inputs:
+            input_txid = input_.fulfills.txid
+            input_tx = self.get_transaction(input_txid)
+            _output = self.get_outputs_by_tx_id(input_txid)
+            if input_tx is None:
+                for ctxn in current_transactions:
+                    if ctxn.id == input_txid:
+                        ctxn_dict = ctxn.to_dict()
+                        input_tx = DbTransaction.from_dict(ctxn_dict)
+                        _output = [
+                            Output.from_dict(output, index, ctxn.id)
+                            for index, output in enumerate(ctxn_dict["outputs"])
+                        ]
+
+            if input_tx is None:
+                raise InputDoesNotExist("input `{}` doesn't exist".format(input_txid))
+
+            spent = self.get_spent(input_txid, input_.fulfills.output, current_transactions)
+            if spent:
+                raise DoubleSpend("input `{}` was already spent".format(input_txid))
+
+            output = _output[input_.fulfills.output]
+            input_conditions.append(output)
+            tx_dict = input_tx.to_dict()
+            tx_dict["outputs"] = Output.list_to_dict(_output)
+            tx_dict = DbTransaction.remove_generated_fields(tx_dict)
+            pm_transaction = Transaction.from_dict(tx_dict, False)
+            input_txs.append(pm_transaction)
+
+        return input_txs, input_conditions
+
+    def get_assets(self, asset_ids) -> list[Asset]:
+        """Return a list of assets that match the asset_ids
+
+        Args:
+            asset_ids (:obj:`list` of :obj:`str`): A list of asset_ids to
+                retrieve from the database.
+
+        Returns:
+            list: The list of assets returned from the database.
+        """
+        return backend.query.get_assets(self.connection, asset_ids)
+
+    def get_assets_by_cid(self, asset_cid, **kwargs) -> list[dict]:
+        asset_txs = backend.query.get_transactions_by_asset(self.connection, asset_cid, **kwargs)
+        # flatten and return all found assets
+        return list(chain.from_iterable([Asset.list_to_dict(tx.assets) for tx in asset_txs]))
+
+    def get_metadata(self, txn_ids) -> list[MetaData]:
+        """Return a list of metadata that match the transaction ids (txn_ids)
+
+        Args:
+            txn_ids (:obj:`list` of :obj:`str`): A list of txn_ids to
+                retrieve from the database.
+
+        Returns:
+            list: The list of metadata returned from the database.
+        """
+        return backend.query.get_metadata(self.connection, txn_ids)
+
+    def get_metadata_by_cid(self, metadata_cid, **kwargs) -> list[str]:
+        metadata_txs = backend.query.get_transactions_by_metadata(self.connection, metadata_cid, **kwargs)
+        return [tx.metadata.metadata for tx in metadata_txs]
+
+    def get_validator_set(self, height=None):
+        return backend.query.get_validator_set(self.connection, height)
+
+    def get_validators(self, height=None):
+        result = self.get_validator_set(height)
+        return [] if result is None else result["validators"]
+
+    def get_election(self, election_id):
+        return backend.query.get_election(self.connection, election_id)
+
+    def get_pre_commit_state(self):
+        return backend.query.get_pre_commit_state(self.connection)
+
+    def store_pre_commit_state(self, state):
+        return backend.query.store_pre_commit_state(self.connection, state)
+
+    def store_validator_set(self, height, validators):
+        """
+        Store validator set at a given `height`.
+        NOTE: If the validator set already exists at that `height` then an
+        exception will be raised.
+        """
+        return backend.query.store_validator_set(self.connection, {"height": height, "validators": validators})
+
+    def delete_validator_set(self, height):
+        return backend.query.delete_validator_set(self.connection, height)
+
+    def store_abci_chain(self, height, chain_id, is_synced=True):
+        return backend.query.store_abci_chain(self.connection, height, chain_id, is_synced)
+
+    def get_asset_tokens_for_public_key(self, transaction_id, election_pk):
+        txns = backend.query.get_asset_tokens_for_public_key(self.connection, transaction_id, election_pk)
+        return txns
+
+    @property
+    def fastquery(self):
+        return FastQuery(self.connection)

planetmint/start.py

@@ -7,11 +7,12 @@ import logging
 import setproctitle
 
 from planetmint.config import Config
-from planetmint.lib import Planetmint
-from planetmint.core import App
-from planetmint.parallel_validation import ParallelValidationApp
+from planetmint.application.validator import Validator
+from planetmint.abci.core import App
+from planetmint.abci.parallel_validation import ParallelValidationApp
 from planetmint.web import server, websocket_server
-from planetmint.events import Exchange, EventTypes
+from planetmint.ipc.events import EventTypes
+from planetmint.ipc.exchange import Exchange
 from planetmint.utils import Process
 from planetmint.version import __version__
 
@@ -40,7 +41,7 @@ def start(args):
     exchange = Exchange()
     # start the web api
     app_server = server.create_server(
-        settings=Config().get()["server"], log_config=Config().get()["log"], planetmint_factory=Planetmint
+        settings=Config().get()["server"], log_config=Config().get()["log"], planetmint_factory=Validator
     )
     p_webapi = Process(name="planetmint_webapi", target=app_server.run, daemon=True)
     p_webapi.start()

planetmint/utils.py

@@ -7,39 +7,16 @@ import contextlib
 import threading
 import queue
 import multiprocessing
-import json
 import setproctitle
 
-from packaging import version
-from planetmint.version import __tm_supported_versions__
-from planetmint.tendermint_utils import key_from_base64
-from planetmint.backend.models.output import ConditionDetails
-from transactions.common.crypto import key_pair_from_ed25519_key
 
+class Singleton(type):
+    _instances = {}
 
-class ProcessGroup(object):
-    def __init__(self, concurrency=None, group=None, target=None, name=None, args=None, kwargs=None, daemon=None):
-        self.concurrency = concurrency or multiprocessing.cpu_count()
-        self.group = group
-        self.target = target
-        self.name = name
-        self.args = args or ()
-        self.kwargs = kwargs or {}
-        self.daemon = daemon
-        self.processes = []
-
-    def start(self):
-        for i in range(self.concurrency):
-            proc = multiprocessing.Process(
-                group=self.group,
-                target=self.target,
-                name=self.name,
-                args=self.args,
-                kwargs=self.kwargs,
-                daemon=self.daemon,
-            )
-            proc.start()
-            self.processes.append(proc)
+    def __call__(cls, *args, **kwargs):
+        if cls not in cls._instances:
+            cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs)
+        return cls._instances[cls]
 
 
 class Process(multiprocessing.Process):
@@ -108,34 +85,6 @@ def pool(builder, size, timeout=None):
     return pooled
 
 
-# TODO: Rename this function, it's handling fulfillments not conditions
-def condition_details_has_owner(condition_details, owner):
-    """Check if the public_key of owner is in the condition details
-    as an Ed25519Fulfillment.public_key
-
-    Args:
-        condition_details (dict): dict with condition details
-        owner (str): base58 public key of owner
-
-    Returns:
-        bool: True if the public key is found in the condition details, False otherwise
-
-    """
-    if isinstance(condition_details, ConditionDetails) and condition_details.sub_conditions is not None:
-        result = condition_details_has_owner(condition_details.sub_conditions, owner)
-        if result:
-            return True
-    elif isinstance(condition_details, list):
-        for subcondition in condition_details:
-            result = condition_details_has_owner(subcondition, owner)
-            if result:
-                return True
-    else:
-        if condition_details.public_key is not None and owner == condition_details.public_key:
-            return True
-    return False
-
-
 class Lazy:
     """Lazy objects are useful to create chains of methods to
     execute later.
@@ -180,32 +129,3 @@ class Lazy:
 
         self.stack = []
         return last
-
-
-# Load Tendermint's public and private key from the file path
-def load_node_key(path):
-    with open(path) as json_data:
-        priv_validator = json.load(json_data)
-        priv_key = priv_validator["priv_key"]["value"]
-        hex_private_key = key_from_base64(priv_key)
-        return key_pair_from_ed25519_key(hex_private_key)
-
-
-def tendermint_version_is_compatible(running_tm_ver):
-    """
-    Check Tendermint compatability with Planetmint server
-
-    :param running_tm_ver: Version number of the connected Tendermint instance
-    :type running_tm_ver: str
-    :return: True/False depending on the compatability with Planetmint server
-    :rtype: bool
-    """
-
-    # Splitting because version can look like this e.g. 0.22.8-40d6dc2e
-    tm_ver = running_tm_ver.split("-")
-    if not tm_ver:
-        return False
-    for ver in __tm_supported_versions__:
-        if version.parse(ver) == version.parse(tm_ver[0]):
-            return True
-    return False

planetmint/web/server.py

@@ -15,7 +15,7 @@ import gunicorn.app.base
 from flask import Flask
 from flask_cors import CORS
 from planetmint import utils
-from planetmint import Planetmint
+from planetmint.application.validator import Validator
 from planetmint.web.routes import add_routes
 from planetmint.web.strip_content_type_middleware import StripContentTypeMiddleware
 
@@ -72,7 +72,7 @@ def create_app(*, debug=False, threads=1, planetmint_factory=None):
     """
 
     if not planetmint_factory:
-        planetmint_factory = Planetmint
+        planetmint_factory = Validator
 
     app = Flask(__name__)
     app.wsgi_app = StripContentTypeMiddleware(app.wsgi_app)

planetmint/web/views/assets.py

@@ -28,8 +28,8 @@ class AssetListApi(Resource):
 
         pool = current_app.config["bigchain_pool"]
 
-        with pool() as planet:
-            assets = planet.get_assets_by_cid(cid, **args)
+        with pool() as validator:
+            assets = validator.models.get_assets_by_cid(cid, **args)
 
         try:
             # This only works with MongoDB as the backend

planetmint/web/views/blocks.py

@@ -22,8 +22,8 @@ class LatestBlock(Resource):
 
         pool = current_app.config["bigchain_pool"]
 
-        with pool() as planet:
-            block = planet.get_latest_block()
+        with pool() as validator:
+            block = validator.models.get_latest_block()
 
         if not block:
             return make_error(404)
@@ -44,8 +44,8 @@ class BlockApi(Resource):
 
         pool = current_app.config["bigchain_pool"]
 
-        with pool() as planet:
-            block = planet.get_block(block_id=block_id)
+        with pool() as validator:
+            block = validator.models.get_block(block_id=block_id)
 
         if not block:
             return make_error(404)
@@ -70,8 +70,8 @@ class BlockListApi(Resource):
 
         pool = current_app.config["bigchain_pool"]
 
-        with pool() as planet:
-            block = planet.get_block_containing_tx(tx_id)
+        with pool() as validator:
+            block = validator.models.get_block_containing_tx(tx_id)
 
         if not block:
             return make_error(404, "Block containing transaction with id: {} not found.".format(tx_id))

planetmint/web/views/metadata.py

@@ -36,8 +36,8 @@ class MetadataApi(Resource):
 
         pool = current_app.config["bigchain_pool"]
 
-        with pool() as planet:
-            metadata = planet.get_metadata_by_cid(cid, **args)
+        with pool() as validator:
+            metadata = validator.models.get_metadata_by_cid(cid, **args)
 
         try:
             return metadata

planetmint/web/views/outputs.py

@@ -23,9 +23,9 @@ class OutputListApi(Resource):
         args = parser.parse_args(strict=True)
 
         pool = current_app.config["bigchain_pool"]
-        with pool() as planet:
+        with pool() as validator:
             try:
-                outputs = planet.get_outputs_filtered(args["public_key"], args["spent"])
+                outputs = validator.models.get_outputs_filtered(args["public_key"], args["spent"])
             except Exception as e:
                 return make_error(
                     500,

planetmint/web/views/transactions.py

@@ -16,10 +16,12 @@ from transactions.common.exceptions import (
     SchemaValidationError,
     ValidationError,
 )
+
+from planetmint.abci.rpc import ABCI_RPC
 from planetmint.web.views.base import make_error
 from planetmint.web.views import parameters
 from transactions.common.transaction import Transaction
-
+from planetmint.abci.rpc import MODE_COMMIT, MODE_LIST
 
 logger = logging.getLogger(__name__)
 
@@ -36,8 +38,8 @@ class TransactionApi(Resource):
         """
         pool = current_app.config["bigchain_pool"]
 
-        with pool() as planet:
-            tx = planet.get_transaction(tx_id)
+        with pool() as validator:
+            tx = validator.models.get_transaction(tx_id)
 
         if not tx:
             return make_error(404)
@@ -52,8 +54,8 @@ class TransactionListApi(Resource):
         parser.add_argument("asset_ids", type=parameters.valid_txid_list, required=True)
         parser.add_argument("last_tx", type=parameters.valid_bool, required=False)
         args = parser.parse_args()
-        with current_app.config["bigchain_pool"]() as planet:
-            txs = planet.get_transactions_filtered(**args)
+        with current_app.config["bigchain_pool"]() as validator:
+            txs = validator.models.get_transactions_filtered(**args)
 
         return [tx.to_dict() for tx in txs]
 
@@ -104,7 +106,9 @@ class TransactionListApi(Resource):
                             but this node only accepts transaction with higher \
                             schema version number.",
                     )
-                status_code, message = planet.write_transaction(tx_obj, mode)
+                status_code, message = ABCI_RPC().write_transaction(
+                    MODE_LIST, ABCI_RPC().tendermint_rpc_endpoint, MODE_COMMIT, tx_obj, mode
+                )
 
         if status_code == 202:
             response = jsonify(tx)

planetmint/web/views/validators.py

@@ -17,7 +17,7 @@ class ValidatorsApi(Resource):
 
         pool = current_app.config["bigchain_pool"]
 
-        with pool() as planet:
-            validators = planet.get_validators()
+        with pool() as validator:
+            validators = validator.models.get_validators()
 
         return validators

planetmint/web/websocket_dispatcher.py

@@ -6,8 +6,8 @@
 
 import json
 
-from planetmint.events import EventTypes
-from planetmint.events import POISON_PILL
+from planetmint.ipc.events import EventTypes
+from planetmint.ipc.events import POISON_PILL
 
 
 class Dispatcher:

tests/assets/test_digital_assets.py

@@ -15,7 +15,7 @@ def test_asset_transfer(b, signed_create_tx, user_pk, user_sk, _bdb):
     tx_transfer = Transfer.generate(signed_create_tx.to_inputs(), [([user_pk], 1)], [signed_create_tx.id])
     tx_transfer_signed = tx_transfer.sign([user_sk])
 
-    b.store_bulk_transactions([signed_create_tx])
+    b.models.store_bulk_transactions([signed_create_tx])
 
     assert b.validate_transaction(tx_transfer_signed) == tx_transfer_signed
     assert tx_transfer_signed.assets[0]["id"] == signed_create_tx.id
@@ -33,7 +33,7 @@ def test_validate_transfer_asset_id_mismatch(b, signed_create_tx, user_pk, user_
     tx_transfer.assets[0]["id"] = "a" * 64
     tx_transfer_signed = tx_transfer.sign([user_sk])
 
-    b.store_bulk_transactions([signed_create_tx])
+    b.models.store_bulk_transactions([signed_create_tx])
 
     with pytest.raises(AssetIdMismatch):
         b.validate_transaction(tx_transfer_signed)
@@ -73,7 +73,7 @@ def test_asset_id_mismatch(alice, user_pk):
 
 def test_compose_valid_transactions(b, user_pk, user_sk, alice, signed_create_tx, _bdb):
     validated = b.validate_transaction(signed_create_tx)
-    b.store_bulk_transactions([validated])
+    b.models.store_bulk_transactions([validated])
 
     inputs = signed_create_tx.to_inputs()
     assets = [signed_create_tx.id, "QmW5GVMW98D3mktSDfWHS8nX2UiCd8gP1uCiujnFX4yK8n"]
@@ -84,7 +84,7 @@ def test_compose_valid_transactions(b, user_pk, user_sk, alice, signed_create_tx
 
 def test_decompose_valid_transactions(b, user_pk, user_sk, alice, signed_create_tx, _bdb):
     validated = b.validate_transaction(signed_create_tx)
-    b.store_bulk_transactions([validated])
+    b.models.store_bulk_transactions([validated])
 
     inputs = signed_create_tx.to_inputs()
     assets = [
@@ -102,7 +102,7 @@ def test_decompose_valid_transactions(b, user_pk, user_sk, alice, signed_create_
 
 def test_create_decompose_output(b, user_pk, user_sk, signed_create_tx, _bdb):
     validated = b.validate_transaction(signed_create_tx)
-    b.store_bulk_transactions([validated])
+    b.models.store_bulk_transactions([validated])
 
     inputs = signed_create_tx.to_inputs()
     assets = [
@@ -116,7 +116,7 @@ def test_create_decompose_output(b, user_pk, user_sk, signed_create_tx, _bdb):
     )
     decompose_transaction.sign([user_sk])
     validated_decompose = b.validate_transaction(decompose_transaction)
-    b.store_bulk_transactions([validated_decompose])
+    b.models.store_bulk_transactions([validated_decompose])
 
     create_inputs = decompose_transaction.to_inputs([0])
     create_tx = Create.generate([user_pk], recipients=[([user_pk], 1)], assets=[assets[0]], inputs=create_inputs)
@@ -141,6 +141,6 @@ def test_v_2_0_validation_create_invalid(b, signed_2_0_create_tx_assets, _bdb):
 
 def test_v_2_0_validation_transfer(b, signed_2_0_create_tx, signed_2_0_transfer_tx, _bdb):
     validated = b.validate_transaction(signed_2_0_create_tx)
-    b.store_bulk_transactions([validated])
+    b.models.store_bulk_transactions([validated])
     assert validated.to_dict() == signed_2_0_create_tx
     assert b.validate_transaction(signed_2_0_transfer_tx).to_dict() == signed_2_0_transfer_tx

tests/assets/test_divisible_assets.py

@@ -137,7 +137,7 @@ def test_single_in_single_own_single_out_single_own_transfer(alice, b, user_pk,
     tx_transfer = Transfer.generate(tx_create.to_inputs(), [([alice.public_key], 100)], asset_ids=[tx_create.id])
     tx_transfer_signed = tx_transfer.sign([user_sk])
 
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
 
     assert b.validate_transaction(tx_transfer_signed) == tx_transfer_signed
     assert len(tx_transfer_signed.outputs) == 1
@@ -163,7 +163,7 @@ def test_single_in_single_own_multiple_out_single_own_transfer(alice, b, user_pk
     )
     tx_transfer_signed = tx_transfer.sign([user_sk])
 
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
 
     assert b.validate_transaction(tx_transfer_signed) == tx_transfer_signed
     assert len(tx_transfer_signed.outputs) == 2
@@ -190,7 +190,7 @@ def test_single_in_single_own_single_out_multiple_own_transfer(alice, b, user_pk
     )
     tx_transfer_signed = tx_transfer.sign([user_sk])
 
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
 
     assert b.validate_transaction(tx_transfer_signed) == tx_transfer_signed
     assert len(tx_transfer_signed.outputs) == 1
@@ -201,7 +201,7 @@ def test_single_in_single_own_single_out_multiple_own_transfer(alice, b, user_pk
     assert len(condition["condition"]["details"]["subconditions"]) == 2
 
     assert len(tx_transfer_signed.inputs) == 1
-    b.store_bulk_transactions([tx_transfer_signed])
+    b.models.store_bulk_transactions([tx_transfer_signed])
     with pytest.raises(DoubleSpend):
         b.validate_transaction(tx_transfer_signed)
 
@@ -227,7 +227,7 @@ def test_single_in_single_own_multiple_out_mix_own_transfer(alice, b, user_pk, u
     )
     tx_transfer_signed = tx_transfer.sign([user_sk])
 
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
 
     assert b.validate_transaction(tx_transfer_signed) == tx_transfer_signed
     assert len(tx_transfer_signed.outputs) == 2
@@ -240,7 +240,7 @@ def test_single_in_single_own_multiple_out_mix_own_transfer(alice, b, user_pk, u
 
     assert len(tx_transfer_signed.inputs) == 1
 
-    b.store_bulk_transactions([tx_transfer_signed])
+    b.models.store_bulk_transactions([tx_transfer_signed])
     with pytest.raises(DoubleSpend):
         b.validate_transaction(tx_transfer_signed)
 
@@ -265,7 +265,7 @@ def test_single_in_multiple_own_single_out_single_own_transfer(alice, b, user_pk
     tx_transfer = Transfer.generate(tx_create.to_inputs(), [([alice.public_key], 100)], asset_ids=[tx_create.id])
     tx_transfer_signed = tx_transfer.sign([alice.private_key, user_sk])
 
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
 
     assert b.validate_transaction(tx_transfer_signed) == tx_transfer_signed
     assert len(tx_transfer_signed.outputs) == 1
@@ -276,7 +276,7 @@ def test_single_in_multiple_own_single_out_single_own_transfer(alice, b, user_pk
     assert "subconditions" in ffill
     assert len(ffill["subconditions"]) == 2
 
-    b.store_bulk_transactions([tx_transfer_signed])
+    b.models.store_bulk_transactions([tx_transfer_signed])
     with pytest.raises(DoubleSpend):
         b.validate_transaction(tx_transfer_signed)
 
@@ -299,14 +299,14 @@ def test_multiple_in_single_own_single_out_single_own_transfer(alice, b, user_pk
     tx_transfer = Transfer.generate(tx_create.to_inputs(), [([alice.public_key], 100)], asset_ids=[tx_create.id])
     tx_transfer_signed = tx_transfer.sign([user_sk])
 
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
 
     assert b.validate_transaction(tx_transfer_signed) == tx_transfer_signed
     assert len(tx_transfer_signed.outputs) == 1
     assert tx_transfer_signed.outputs[0].amount == 100
     assert len(tx_transfer_signed.inputs) == 2
 
-    b.store_bulk_transactions([tx_transfer_signed])
+    b.models.store_bulk_transactions([tx_transfer_signed])
     with pytest.raises(DoubleSpend):
         b.validate_transaction(tx_transfer_signed)
 
@@ -331,7 +331,7 @@ def test_multiple_in_multiple_own_single_out_single_own_transfer(alice, b, user_
     tx_transfer = Transfer.generate(tx_create.to_inputs(), [([alice.public_key], 100)], asset_ids=[tx_create.id])
     tx_transfer_signed = tx_transfer.sign([alice.private_key, user_sk])
 
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
 
     assert b.validate_transaction(tx_transfer_signed) == tx_transfer_signed
     assert len(tx_transfer_signed.outputs) == 1
@@ -345,7 +345,7 @@ def test_multiple_in_multiple_own_single_out_single_own_transfer(alice, b, user_
     assert len(ffill_fid0["subconditions"]) == 2
     assert len(ffill_fid1["subconditions"]) == 2
 
-    b.store_bulk_transactions([tx_transfer_signed])
+    b.models.store_bulk_transactions([tx_transfer_signed])
     with pytest.raises(DoubleSpend):
         b.validate_transaction(tx_transfer_signed)
 
@@ -371,7 +371,7 @@ def test_muiltiple_in_mix_own_multiple_out_single_own_transfer(alice, b, user_pk
     tx_transfer = Transfer.generate(tx_create.to_inputs(), [([alice.public_key], 100)], asset_ids=[tx_create.id])
     tx_transfer_signed = tx_transfer.sign([alice.private_key, user_sk])
 
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
     assert b.validate_transaction(tx_transfer_signed) == tx_transfer_signed
     assert len(tx_transfer_signed.outputs) == 1
     assert tx_transfer_signed.outputs[0].amount == 100
@@ -383,7 +383,7 @@ def test_muiltiple_in_mix_own_multiple_out_single_own_transfer(alice, b, user_pk
     assert "subconditions" in ffill_fid1
     assert len(ffill_fid1["subconditions"]) == 2
 
-    b.store_bulk_transactions([tx_transfer_signed])
+    b.models.store_bulk_transactions([tx_transfer_signed])
     with pytest.raises(DoubleSpend):
         b.validate_transaction(tx_transfer_signed)
 
@@ -410,7 +410,7 @@ def test_muiltiple_in_mix_own_multiple_out_mix_own_transfer(alice, b, user_pk, u
         tx_create.to_inputs(), [([alice.public_key], 50), ([alice.public_key, user_pk], 50)], asset_ids=[tx_create.id]
     )
     tx_transfer_signed = tx_transfer.sign([alice.private_key, user_sk])
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
 
     assert b.validate_transaction(tx_transfer_signed) == tx_transfer_signed
     assert len(tx_transfer_signed.outputs) == 2
@@ -430,7 +430,7 @@ def test_muiltiple_in_mix_own_multiple_out_mix_own_transfer(alice, b, user_pk, u
     assert "subconditions" in ffill_fid1
     assert len(ffill_fid1["subconditions"]) == 2
 
-    b.store_bulk_transactions([tx_transfer_signed])
+    b.models.store_bulk_transactions([tx_transfer_signed])
     with pytest.raises(DoubleSpend):
         b.validate_transaction(tx_transfer_signed)
 
@@ -466,7 +466,7 @@ def test_multiple_in_different_transactions(alice, b, user_pk, user_sk):
     )
     tx_transfer2_signed = tx_transfer2.sign([user_sk])
 
-    b.store_bulk_transactions([tx_create_signed, tx_transfer1_signed])
+    b.models.store_bulk_transactions([tx_create_signed, tx_transfer1_signed])
 
     assert b.validate_transaction(tx_transfer2_signed) == tx_transfer2_signed
     assert len(tx_transfer2_signed.outputs) == 1
@@ -491,7 +491,7 @@ def test_amount_error_transfer(alice, b, user_pk, user_sk):
     )
     tx_create_signed = tx_create.sign([alice.private_key])
 
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
 
     # TRANSFER
     # output amount less than input amount
@@ -529,12 +529,12 @@ def test_threshold_same_public_key(alice, b, user_pk, user_sk):
     # TRANSFER
     tx_transfer = Transfer.generate(tx_create.to_inputs(), [([alice.public_key], 100)], asset_ids=[tx_create.id])
     tx_transfer_signed = tx_transfer.sign([user_sk, user_sk])
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
 
     # assert tx_transfer_signed.validate(b) == tx_transfer_signed
     assert b.validate_transaction(tx_transfer_signed) == tx_transfer_signed
 
-    b.store_bulk_transactions([tx_transfer_signed])
+    b.models.store_bulk_transactions([tx_transfer_signed])
     with pytest.raises(DoubleSpend):
         # tx_transfer_signed.validate(b)
         b.validate_transaction(tx_transfer_signed)
@@ -554,13 +554,13 @@ def test_sum_amount(alice, b, user_pk, user_sk):
     tx_transfer = Transfer.generate(tx_create.to_inputs(), [([alice.public_key], 3)], asset_ids=[tx_create.id])
     tx_transfer_signed = tx_transfer.sign([user_sk])
 
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
 
     assert b.validate_transaction(tx_transfer_signed) == tx_transfer_signed
     assert len(tx_transfer_signed.outputs) == 1
     assert tx_transfer_signed.outputs[0].amount == 3
 
-    b.store_bulk_transactions([tx_transfer_signed])
+    b.models.store_bulk_transactions([tx_transfer_signed])
     with pytest.raises(DoubleSpend):
         b.validate_transaction(tx_transfer_signed)
 
@@ -581,13 +581,13 @@ def test_divide(alice, b, user_pk, user_sk):
     )
     tx_transfer_signed = tx_transfer.sign([user_sk])
 
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
 
     assert b.validate_transaction(tx_transfer_signed) == tx_transfer_signed
     assert len(tx_transfer_signed.outputs) == 3
     for output in tx_transfer_signed.outputs:
         assert output.amount == 1
 
-    b.store_bulk_transactions([tx_transfer_signed])
+    b.models.store_bulk_transactions([tx_transfer_signed])
     with pytest.raises(DoubleSpend):
         b.validate_transaction(tx_transfer_signed)

tests/assets/test_zenroom_signing.py

@@ -51,7 +51,7 @@ SCRIPT_INPUT = {
 metadata = {"units": 300, "type": "KG"}
 
 
-def test_zenroom_signing():
+def test_zenroom_signing(b):
     biolabs = generate_key_pair()
     version = "3.0"
 
@@ -149,7 +149,6 @@ def test_zenroom_signing():
     tx["id"] = shared_creation_txid
 
     from transactions.common.transaction import Transaction
-    from planetmint.lib import Planetmint
     from transactions.common.exceptions import (
         SchemaValidationError,
         ValidationError,
@@ -164,9 +163,9 @@ def test_zenroom_signing():
     except ValidationError as e:
         print(e)
         assert ()
-    planet = Planetmint()
+
     try:
-        planet.validate_transaction(tx_obj)
+        b.validate_transaction(tx_obj)
     except ValidationError as e:
         print("Invalid transaction ({}): {}".format(type(e).__name__, e))
         assert ()

tests/backend/tarantool/test_queries.py

@@ -48,7 +48,7 @@ def test_get_owned_ids(signed_create_tx, user_pk, db_conn):
 
 
 def test_store_block(db_conn):
-    from planetmint.lib import Block
+    from planetmint.abci.block import Block
     from planetmint.backend.tarantool import query
 
     block = Block(app_hash="random_utxo", height=3, transactions=[])
@@ -59,7 +59,7 @@ def test_store_block(db_conn):
 
 
 def test_get_block(db_conn):
-    from planetmint.lib import Block
+    from planetmint.abci.block import Block
     from planetmint.backend.tarantool import query
 
     block = Block(app_hash="random_utxo", height=3, transactions=[])

tests/commands/conftest.py

@@ -63,7 +63,7 @@ def run_start_args(request):
 @pytest.fixture
 def mocked_setup_logging(mocker):
     return mocker.patch(
-        "planetmint.log.setup_logging",
+        "planetmint.config_utils.setup_logging",
         autospec=True,
         spec_set=True,
     )

tests/commands/test_commands.py

@@ -9,13 +9,19 @@ import pytest
 
 from unittest.mock import Mock, patch
 from argparse import Namespace
+
+from transactions.types.elections.validator_election import ValidatorElection
+from transactions.types.elections.chain_migration_election import ChainMigrationElection
+
+from planetmint.abci.rpc import ABCI_RPC
+from planetmint.abci.block import Block
 from planetmint.config import Config
-from planetmint import ValidatorElection
 from planetmint.commands.planetmint import run_election_show
 from planetmint.commands.planetmint import run_election_new_chain_migration
+from planetmint.commands.planetmint import run_election_approve
+from planetmint.commands.planetmint import run_election_new_upsert_validator
 from planetmint.backend.connection import Connection
-from planetmint.lib import Block
-from transactions.types.elections.chain_migration_election import ChainMigrationElection
+
 
 from tests.utils import generate_election, generate_validators
 
@@ -62,7 +68,7 @@ def test_main_entrypoint(mock_start):
     assert mock_start.called
 
 
-@patch("planetmint.log.setup_logging")
+@patch("planetmint.config_utils.setup_logging")
 @patch("planetmint.commands.planetmint._run_init")
 @patch("planetmint.config_utils.autoconfigure")
 def test_bigchain_run_start(mock_setup_logging, mock_run_init, mock_autoconfigure, mock_processes_start):
@@ -245,23 +251,22 @@ def test_calling_main(start_mock, monkeypatch):
     assert start_mock.called is True
 
 
-@patch("planetmint.commands.planetmint.run_recover")
+@patch("planetmint.application.validator.Validator.rollback")
 @patch("planetmint.start.start")
-def test_recover_db_on_start(mock_run_recover, mock_start, mocked_setup_logging):
+def test_recover_db_on_start(mock_rollback, mock_start, mocked_setup_logging):
     from planetmint.commands.planetmint import run_start
 
     args = Namespace(config=None, yes=True, skip_initialize_database=False)
     run_start(args)
 
-    assert mock_run_recover.called
+    assert mock_rollback.called
     assert mock_start.called
 
 
 @pytest.mark.bdb
-def test_run_recover(b, alice, bob):
-    from planetmint.commands.planetmint import run_recover
+def test_run_recover(b, alice, bob, test_models):
     from transactions.types.assets.create import Create
-    from planetmint.lib import Block
+    from planetmint.abci.block import Block
     from planetmint.backend import query
 
     tx1 = Create.generate(
@@ -278,23 +283,23 @@ def test_run_recover(b, alice, bob):
     ).sign([bob.private_key])
 
     # store the transactions
-    b.store_bulk_transactions([tx1, tx2])
+    b.models.store_bulk_transactions([tx1, tx2])
 
     # create a random block
     block8 = Block(app_hash="random_app_hash1", height=8, transactions=["txid_doesnt_matter"])._asdict()
-    b.store_block(block8)
+    b.models.store_block(block8)
 
     # create the next block
     block9 = Block(app_hash="random_app_hash1", height=9, transactions=[tx1.id])._asdict()
-    b.store_block(block9)
+    b.models.store_block(block9)
 
     # create a pre_commit state which is ahead of the commit state
     pre_commit_state = dict(height=10, transactions=[tx2.id])
-    b.store_pre_commit_state(pre_commit_state)
+    b.models.store_pre_commit_state(pre_commit_state)
 
-    run_recover(b)
+    b.rollback()
 
-    assert not query.get_transaction(b.connection, tx2.id)
+    assert not query.get_transaction(b.models.connection, tx2.id)
 
 
 # Helper
@@ -307,9 +312,7 @@ class MockResponse:
 
 
 @pytest.mark.abci
-def test_election_new_upsert_validator_with_tendermint(b, priv_validator_path, user_sk, validators):
-    from planetmint.commands.planetmint import run_election_new_upsert_validator
-
+def test_election_new_upsert_validator_with_tendermint(b, priv_validator_path, user_sk, validators, test_abci_rpc):
     new_args = Namespace(
         action="new",
         election_type="upsert-validator",
@@ -320,21 +323,19 @@ def test_election_new_upsert_validator_with_tendermint(b, priv_validator_path, u
         config={},
     )
 
-    election_id = run_election_new_upsert_validator(new_args, b)
+    election_id = run_election_new_upsert_validator(new_args, b, test_abci_rpc)
 
-    assert b.get_transaction(election_id)
+    assert b.models.get_transaction(election_id)
 
 
 @pytest.mark.bdb
-def test_election_new_upsert_validator_without_tendermint(caplog, b, priv_validator_path, user_sk):
-    from planetmint.commands.planetmint import run_election_new_upsert_validator
-
-    def mock_write(tx, mode):
-        b.store_bulk_transactions([tx])
+def test_election_new_upsert_validator_without_tendermint(caplog, b, priv_validator_path, user_sk, test_abci_rpc):
+    def mock_write(modelist, endpoint, mode_commit, transaction, mode):
+        b.models.store_bulk_transactions([transaction])
         return (202, "")
 
-    b.get_validators = mock_get_validators
-    b.write_transaction = mock_write
+    b.models.get_validators = mock_get_validators
+    test_abci_rpc.write_transaction = mock_write
 
     args = Namespace(
         action="new",
@@ -347,41 +348,39 @@ def test_election_new_upsert_validator_without_tendermint(caplog, b, priv_valida
     )
 
     with caplog.at_level(logging.INFO):
-        election_id = run_election_new_upsert_validator(args, b)
+        election_id = run_election_new_upsert_validator(args, b, test_abci_rpc)
         assert caplog.records[0].msg == "[SUCCESS] Submitted proposal with id: " + election_id
-        assert b.get_transaction(election_id)
+        assert b.models.get_transaction(election_id)
 
 
 @pytest.mark.abci
-def test_election_new_chain_migration_with_tendermint(b, priv_validator_path, user_sk, validators):
+def test_election_new_chain_migration_with_tendermint(b, priv_validator_path, user_sk, validators, test_abci_rpc):
     new_args = Namespace(action="new", election_type="migration", sk=priv_validator_path, config={})
 
-    election_id = run_election_new_chain_migration(new_args, b)
+    election_id = run_election_new_chain_migration(new_args, b, test_abci_rpc)
 
-    assert b.get_transaction(election_id)
+    assert b.models.get_transaction(election_id)
 
 
 @pytest.mark.bdb
-def test_election_new_chain_migration_without_tendermint(caplog, b, priv_validator_path, user_sk):
-    def mock_write(tx, mode):
-        b.store_bulk_transactions([tx])
+def test_election_new_chain_migration_without_tendermint(caplog, b, priv_validator_path, user_sk, test_abci_rpc):
+    def mock_write(modelist, endpoint, mode_commit, transaction, mode):
+        b.models.store_bulk_transactions([transaction])
         return (202, "")
 
-    b.get_validators = mock_get_validators
-    b.write_transaction = mock_write
+    b.models.get_validators = mock_get_validators
+    test_abci_rpc.write_transaction = mock_write
 
     args = Namespace(action="new", election_type="migration", sk=priv_validator_path, config={})
 
     with caplog.at_level(logging.INFO):
-        election_id = run_election_new_chain_migration(args, b)
+        election_id = run_election_new_chain_migration(args, b, test_abci_rpc)
         assert caplog.records[0].msg == "[SUCCESS] Submitted proposal with id: " + election_id
-        assert b.get_transaction(election_id)
+        assert b.models.get_transaction(election_id)
 
 
 @pytest.mark.bdb
-def test_election_new_upsert_validator_invalid_election(caplog, b, priv_validator_path, user_sk):
-    from planetmint.commands.planetmint import run_election_new_upsert_validator
-
+def test_election_new_upsert_validator_invalid_election(caplog, b, priv_validator_path, user_sk, test_abci_rpc):
     args = Namespace(
         action="new",
         election_type="upsert-validator",
@@ -393,21 +392,20 @@ def test_election_new_upsert_validator_invalid_election(caplog, b, priv_validato
     )
 
     with caplog.at_level(logging.ERROR):
-        assert not run_election_new_upsert_validator(args, b)
+        assert not run_election_new_upsert_validator(args, b, test_abci_rpc)
         assert caplog.records[0].msg.__class__ == FileNotFoundError
 
 
 @pytest.mark.bdb
-def test_election_new_upsert_validator_invalid_power(caplog, b, priv_validator_path, user_sk):
-    from planetmint.commands.planetmint import run_election_new_upsert_validator
+def test_election_new_upsert_validator_invalid_power(caplog, b, priv_validator_path, user_sk, test_abci_rpc):
     from transactions.common.exceptions import InvalidPowerChange
 
-    def mock_write(tx, mode):
-        b.store_bulk_transactions([tx])
+    def mock_write(modelist, endpoint, mode_commit, transaction, mode):
+        b.models.store_bulk_transactions([transaction])
         return (400, "")
 
-    b.write_transaction = mock_write
-    b.get_validators = mock_get_validators
+    test_abci_rpc.write_transaction = mock_write
+    b.models.get_validators = mock_get_validators
     args = Namespace(
         action="new",
         election_type="upsert-validator",
@@ -419,14 +417,12 @@ def test_election_new_upsert_validator_invalid_power(caplog, b, priv_validator_p
     )
 
     with caplog.at_level(logging.ERROR):
-        assert not run_election_new_upsert_validator(args, b)
+        assert not run_election_new_upsert_validator(args, b, test_abci_rpc)
         assert caplog.records[0].msg.__class__ == InvalidPowerChange
 
 
 @pytest.mark.abci
-def test_election_approve_with_tendermint(b, priv_validator_path, user_sk, validators):
-    from planetmint.commands.planetmint import run_election_new_upsert_validator, run_election_approve
-
+def test_election_approve_with_tendermint(b, priv_validator_path, user_sk, validators, test_abci_rpc):
     public_key = "CJxdItf4lz2PwEf4SmYNAu/c/VpmX39JEgC5YpH7fxg="
     new_args = Namespace(
         action="new",
@@ -438,65 +434,63 @@ def test_election_approve_with_tendermint(b, priv_validator_path, user_sk, valid
         config={},
     )
 
-    election_id = run_election_new_upsert_validator(new_args, b)
+    election_id = run_election_new_upsert_validator(new_args, b, test_abci_rpc)
     assert election_id
 
     args = Namespace(action="approve", election_id=election_id, sk=priv_validator_path, config={})
-    approve = run_election_approve(args, b)
+    approve = run_election_approve(args, b, test_abci_rpc)
 
-    assert b.get_transaction(approve)
+    assert b.models.get_transaction(approve)
 
 
 @pytest.mark.bdb
-def test_election_approve_without_tendermint(caplog, b, priv_validator_path, new_validator, node_key):
+def test_election_approve_without_tendermint(caplog, b, priv_validator_path, new_validator, node_key, test_abci_rpc):
     from planetmint.commands.planetmint import run_election_approve
     from argparse import Namespace
 
-    b, election_id = call_election(b, new_validator, node_key)
+    b, election_id = call_election(b, new_validator, node_key, test_abci_rpc)
 
     # call run_election_approve with args that point to the election
     args = Namespace(action="approve", election_id=election_id, sk=priv_validator_path, config={})
 
     # assert returned id is in the db
     with caplog.at_level(logging.INFO):
-        approval_id = run_election_approve(args, b)
+        approval_id = run_election_approve(args, b, test_abci_rpc)
         assert caplog.records[0].msg == "[SUCCESS] Your vote has been submitted"
-        assert b.get_transaction(approval_id)
+        assert b.models.get_transaction(approval_id)
 
 
 @pytest.mark.bdb
-def test_election_approve_failure(caplog, b, priv_validator_path, new_validator, node_key):
-    from planetmint.commands.planetmint import run_election_approve
+def test_election_approve_failure(caplog, b, priv_validator_path, new_validator, node_key, test_abci_rpc):
     from argparse import Namespace
 
-    b, election_id = call_election(b, new_validator, node_key)
+    b, election_id = call_election(b, new_validator, node_key, test_abci_rpc)
 
-    def mock_write(tx, mode):
-        b.store_bulk_transactions([tx])
+    def mock_write(modelist, endpoint, mode_commit, transaction, mode):
+        b.models.store_bulk_transactions([transaction])
         return (400, "")
 
-    b.write_transaction = mock_write
+    test_abci_rpc.write_transaction = mock_write
 
     # call run_upsert_validator_approve with args that point to the election
     args = Namespace(action="approve", election_id=election_id, sk=priv_validator_path, config={})
 
     with caplog.at_level(logging.ERROR):
-        assert not run_election_approve(args, b)
+        assert not run_election_approve(args, b, test_abci_rpc)
         assert caplog.records[0].msg == "Failed to commit vote"
 
 
 @pytest.mark.bdb
-def test_election_approve_called_with_bad_key(caplog, b, bad_validator_path, new_validator, node_key):
-    from planetmint.commands.planetmint import run_election_approve
+def test_election_approve_called_with_bad_key(caplog, b, bad_validator_path, new_validator, node_key, test_abci_rpc):
     from argparse import Namespace
 
-    b, election_id = call_election(b, new_validator, node_key)
+    b, election_id = call_election(b, new_validator, node_key, test_abci_rpc)
 
     # call run_upsert_validator_approve with args that point to the election, but a bad signing key
     args = Namespace(action="approve", election_id=election_id, sk=bad_validator_path, config={})
 
     with caplog.at_level(logging.ERROR):
-        assert not run_election_approve(args, b)
+        assert not run_election_approve(args, b, test_abci_rpc)
         assert (
             caplog.records[0].msg == "The key you provided does not match any of "
             "the eligible voters in this election."
@@ -506,7 +500,7 @@ def test_election_approve_called_with_bad_key(caplog, b, bad_validator_path, new
 @pytest.mark.bdb
 def test_chain_migration_election_show_shows_inconclusive(b):
     validators = generate_validators([1] * 4)
-    b.store_validator_set(1, [v["storage"] for v in validators])
+    b.models.store_validator_set(1, [v["storage"] for v in validators])
 
     public_key = validators[0]["public_key"]
     private_key = validators[0]["private_key"]
@@ -517,16 +511,16 @@ def test_chain_migration_election_show_shows_inconclusive(b):
     assert not run_election_show(Namespace(election_id=election.id), b)
 
     b.process_block(1, [election])
-    b.store_bulk_transactions([election])
+    b.models.store_bulk_transactions([election])
 
     assert run_election_show(Namespace(election_id=election.id), b) == "status=ongoing"
 
-    b.store_block(Block(height=1, transactions=[], app_hash="")._asdict())
-    b.store_validator_set(2, [v["storage"] for v in validators])
+    b.models.store_block(Block(height=1, transactions=[], app_hash="")._asdict())
+    b.models.store_validator_set(2, [v["storage"] for v in validators])
 
     assert run_election_show(Namespace(election_id=election.id), b) == "status=ongoing"
 
-    b.store_block(Block(height=2, transactions=[], app_hash="")._asdict())
+    b.models.store_block(Block(height=2, transactions=[], app_hash="")._asdict())
     # TODO insert yet another block here when upgrading to Tendermint 0.22.4.
 
     assert run_election_show(Namespace(election_id=election.id), b) == "status=inconclusive"
@@ -535,7 +529,7 @@ def test_chain_migration_election_show_shows_inconclusive(b):
 @pytest.mark.bdb
 def test_chain_migration_election_show_shows_concluded(b):
     validators = generate_validators([1] * 4)
-    b.store_validator_set(1, [v["storage"] for v in validators])
+    b.models.store_validator_set(1, [v["storage"] for v in validators])
 
     public_key = validators[0]["public_key"]
     private_key = validators[0]["private_key"]
@@ -545,13 +539,13 @@ def test_chain_migration_election_show_shows_concluded(b):
 
     assert not run_election_show(Namespace(election_id=election.id), b)
 
-    b.store_bulk_transactions([election])
+    b.models.store_bulk_transactions([election])
     b.process_block(1, [election])
 
     assert run_election_show(Namespace(election_id=election.id), b) == "status=ongoing"
 
-    b.store_abci_chain(1, "chain-X")
-    b.store_block(Block(height=1, transactions=[v.id for v in votes], app_hash="last_app_hash")._asdict())
+    b.models.store_abci_chain(1, "chain-X")
+    b.models.store_block(Block(height=1, transactions=[v.id for v in votes], app_hash="last_app_hash")._asdict())
     b.process_block(2, votes)
 
     assert (
@@ -593,14 +587,14 @@ def mock_get_validators(height):
     ]
 
 
-def call_election(b, new_validator, node_key):
-    def mock_write(tx, mode):
-        b.store_bulk_transactions([tx])
+def call_election(b, new_validator, node_key, abci_rpc):
+    def mock_write(modelist, endpoint, mode_commit, transaction, mode):
+        b.models.store_bulk_transactions([transaction])
         return (202, "")
 
     # patch the validator set. We now have one validator with power 10
-    b.get_validators = mock_get_validators
-    b.write_transaction = mock_write
+    b.models.get_validators = mock_get_validators
+    abci_rpc.write_transaction = mock_write
 
     # our voters is a list of length 1, populated from our mocked validator
     voters = b.get_recipients_list()
@@ -610,6 +604,6 @@ def call_election(b, new_validator, node_key):
 
     # patch in an election with a vote issued to the user
     election_id = valid_election.id
-    b.store_bulk_transactions([valid_election])
+    b.models.store_bulk_transactions([valid_election])
 
     return b, election_id

tests/conftest.py

@@ -20,14 +20,17 @@ from ipld import marshal, multihash
 from collections import namedtuple
 from logging import getLogger
 from logging.config import dictConfig
+
 from planetmint.backend.connection import Connection
 from planetmint.backend.tarantool.connection import TarantoolDBConnection
 from transactions.common import crypto
 from transactions.common.transaction_mode_types import BROADCAST_TX_COMMIT
-from planetmint.tendermint_utils import key_from_base64
+from planetmint.abci.tendermint_utils import key_from_base64
 from planetmint.backend import schema, query
 from transactions.common.crypto import key_pair_from_ed25519_key, public_key_from_ed25519_key
-from planetmint.lib import Block
+from planetmint.abci.block import Block
+from planetmint.abci.rpc import MODE_LIST
+from planetmint.model.models import Models
 from tests.utils import gen_vote
 from planetmint.config import Config
 from transactions.types.elections.validator_election import ValidatorElection  # noqa
@@ -246,10 +249,31 @@ def abci_fixture():
 
 
 @pytest.fixture
-def b():
-    from planetmint import Planetmint
+def test_models():
+    from planetmint.model.models import Models
 
-    return Planetmint()
+    return Models()
+
+
+@pytest.fixture
+def test_validator():
+    from planetmint.application import Validator
+
+    return Validator()
+
+
+@pytest.fixture
+def test_abci_rpc():
+    from planetmint.abci.rpc import ABCI_RPC
+
+    return ABCI_RPC()
+
+
+@pytest.fixture
+def b():
+    from planetmint.application import Validator
+
+    return Validator()
 
 
 @pytest.fixture
@@ -261,7 +285,7 @@ def eventqueue_fixture():
 
 @pytest.fixture
 def b_mock(b, network_validators):
-    b.get_validators = mock_get_validators(network_validators)
+    b.models.get_validators = mock_get_validators(network_validators)
     return b
 
 
@@ -290,8 +314,10 @@ def signed_create_tx(alice, create_tx):
 
 
 @pytest.fixture
-def posted_create_tx(b, signed_create_tx):
-    res = b.post_transaction(signed_create_tx, BROADCAST_TX_COMMIT)
+def posted_create_tx(b, signed_create_tx, test_abci_rpc):
+    res = test_abci_rpc.post_transaction(
+        MODE_LIST, test_abci_rpc.tendermint_rpc_endpoint, signed_create_tx, BROADCAST_TX_COMMIT
+    )
     assert res.status_code == 200
     return signed_create_tx
 
@@ -315,7 +341,7 @@ def double_spend_tx(signed_create_tx, carol_pubkey, user_sk):
 
 
 def _get_height(b):
-    maybe_block = b.get_latest_block()
+    maybe_block = b.models.get_latest_block()
     return 0 if maybe_block is None else maybe_block["height"]
 
 
@@ -333,8 +359,8 @@ def inputs(user_pk, b, alice):
         ]
         tx_ids = [tx.id for tx in transactions]
         block = Block(app_hash="hash" + str(height), height=height, transactions=tx_ids)
-        b.store_block(block._asdict())
-        b.store_bulk_transactions(transactions)
+        b.models.store_block(block._asdict())
+        b.models.store_bulk_transactions(transactions)
 
 
 @pytest.fixture
@@ -427,7 +453,7 @@ def abci_server():
     from abci.server import ABCIServer
 
     # from tendermint.abci import types_pb2 as types_v0_34_11
-    from planetmint.core import App
+    from planetmint.abci.core import App
     from planetmint.utils import Process
 
     app = ABCIServer(app=App())
@@ -630,7 +656,7 @@ def validators(b, node_keys):
 
     height = get_block_height(b)
 
-    original_validators = b.get_validators()
+    original_validators = b.models.get_validators()
 
     (public_key, private_key) = list(node_keys.items())[0]
 
@@ -644,7 +670,7 @@ def validators(b, node_keys):
 
     validator_update = {"validators": validator_set, "height": height + 1, "election_id": f"setup_at_{timestamp()}"}
 
-    query.store_validator_set(b.connection, validator_update)
+    query.store_validator_set(b.models.connection, validator_update)
 
     yield
 
@@ -656,12 +682,12 @@ def validators(b, node_keys):
         "election_id": f"teardown_at_{timestamp()}",
     }
 
-    query.store_validator_set(b.connection, validator_update)
+    query.store_validator_set(b.models.connection, validator_update)
 
 
 def get_block_height(b):
-    if b.get_latest_block():
-        height = b.get_latest_block()["height"]
+    if b.models.get_latest_block():
+        height = b.models.get_latest_block()["height"]
     else:
         height = 0
 
@@ -693,25 +719,25 @@ def valid_upsert_validator_election_2(b_mock, node_key, new_validator):
 
 @pytest.fixture
 def ongoing_validator_election(b, valid_upsert_validator_election, ed25519_node_keys):
-    validators = b.get_validators(height=1)
+    validators = b.models.get_validators(height=1)
     genesis_validators = {"validators": validators, "height": 0}
-    query.store_validator_set(b.connection, genesis_validators)
-    b.store_bulk_transactions([valid_upsert_validator_election])
-    query.store_election(b.connection, valid_upsert_validator_election.id, 1, is_concluded=False)
+    query.store_validator_set(b.models.connection, genesis_validators)
+    b.models.store_bulk_transactions([valid_upsert_validator_election])
+    query.store_election(b.models.connection, valid_upsert_validator_election.id, 1, is_concluded=False)
     block_1 = Block(app_hash="hash_1", height=1, transactions=[valid_upsert_validator_election.id])
-    b.store_block(block_1._asdict())
+    b.models.store_block(block_1._asdict())
     return valid_upsert_validator_election
 
 
 @pytest.fixture
 def ongoing_validator_election_2(b, valid_upsert_validator_election_2, ed25519_node_keys):
-    validators = b.get_validators(height=1)
+    validators = b.models.get_validators(height=1)
     genesis_validators = {"validators": validators, "height": 0, "election_id": None}
-    query.store_validator_set(b.connection, genesis_validators)
+    query.store_validator_set(b.models.connection, genesis_validators)
 
-    b.store_bulk_transactions([valid_upsert_validator_election_2])
+    b.models.store_bulk_transactions([valid_upsert_validator_election_2])
     block_1 = Block(app_hash="hash_2", height=1, transactions=[valid_upsert_validator_election_2.id])
-    b.store_block(block_1._asdict())
+    b.models.store_block(block_1._asdict())
     return valid_upsert_validator_election_2
 
 

tests/db/test_planetmint_api.py

@@ -5,19 +5,16 @@
 import random
 import warnings
 from unittest.mock import patch
-
 import pytest
 from base58 import b58decode
 from ipld import marshal, multihash
+
 from transactions.common import crypto
-from transactions.common.output import Output as TransactionOutput
 from transactions.common.transaction import TransactionLink
 from transactions.common.transaction import Transaction
 from transactions.types.assets.create import Create
 from transactions.types.assets.transfer import Transfer
-
-
-from planetmint.backend.models import Output
+from planetmint.model.fastquery import FastQuery
 from planetmint.exceptions import CriticalDoubleSpend
 
 pytestmark = pytest.mark.bdb
@@ -32,7 +29,7 @@ class TestBigchainApi(object):
         tx = Create.generate([alice.public_key], [([alice.public_key], 1)])
         tx = tx.sign([alice.private_key])
 
-        b.store_bulk_transactions([tx])
+        b.models.store_bulk_transactions([tx])
 
         transfer_tx = Transfer.generate(tx.to_inputs(), [([alice.public_key], 1)], asset_ids=[tx.id])
         transfer_tx = transfer_tx.sign([alice.private_key])
@@ -42,13 +39,13 @@ class TestBigchainApi(object):
         with pytest.raises(DoubleSpend):
             b.validate_transaction(transfer_tx2, [transfer_tx])
 
-        b.store_bulk_transactions([transfer_tx])
+        b.models.store_bulk_transactions([transfer_tx])
 
         with pytest.raises(DoubleSpend):
             b.validate_transaction(transfer_tx2)
 
         with pytest.raises(CriticalDoubleSpend):
-            b.store_bulk_transactions([transfer_tx2])
+            b.models.store_bulk_transactions([transfer_tx2])
 
     def test_double_inclusion(self, b, alice):
         from tarantool.error import DatabaseError
@@ -59,13 +56,13 @@ class TestBigchainApi(object):
         tx = Create.generate([alice.public_key], [([alice.public_key], 1)])
         tx = tx.sign([alice.private_key])
 
-        b.store_bulk_transactions([tx])
-        if isinstance(b.connection, TarantoolDBConnection):
+        b.models.store_bulk_transactions([tx])
+        if isinstance(b.models.connection, TarantoolDBConnection):
             with pytest.raises(CriticalDoubleSpend):
-                b.store_bulk_transactions([tx])
+                b.models.store_bulk_transactions([tx])
         else:
             with pytest.raises(OperationError):
-                b.store_bulk_transactions([tx])
+                b.models.store_bulk_transactions([tx])
 
     @pytest.mark.usefixtures("inputs")
     def test_non_create_input_not_found(self, b, user_pk):
@@ -85,9 +82,9 @@ class TestBigchainApi(object):
         asset1 = {"data": "QmaozNR7DZHQK1ZcU9p7QdrshMvXqWK6gpu5rmrkPdT3L4"}
 
         tx = Create.generate([alice.public_key], [([alice.public_key], 1)], assets=[asset1]).sign([alice.private_key])
-        b.store_bulk_transactions([tx])
+        b.models.store_bulk_transactions([tx])
 
-        tx_from_db = b.get_transaction(tx.id)
+        tx_from_db = b.models.get_transaction(tx.id)
 
         before = tx.to_dict()
         after = tx_from_db.to_dict()
@@ -112,8 +109,8 @@ class TestTransactionValidation(object):
         from transactions.common.crypto import generate_key_pair
         from transactions.common.exceptions import InvalidSignature
 
-        input_tx = b.fastquery.get_outputs_by_public_key(user_pk).pop()
-        input_transaction = b.get_transaction(input_tx.txid)
+        input_tx = b.models.fastquery.get_outputs_by_public_key(user_pk).pop()
+        input_transaction = b.models.get_transaction(input_tx.txid)
         sk, pk = generate_key_pair()
         tx = Create.generate([pk], [([user_pk], 1)])
         tx.operation = "TRANSFER"
@@ -127,7 +124,7 @@ class TestTransactionValidation(object):
     def test_non_create_double_spend(self, b, signed_create_tx, signed_transfer_tx, double_spend_tx):
         from transactions.common.exceptions import DoubleSpend
 
-        b.store_bulk_transactions([signed_create_tx, signed_transfer_tx])
+        b.models.store_bulk_transactions([signed_create_tx, signed_transfer_tx])
 
         with pytest.raises(DoubleSpend):
             b.validate_transaction(double_spend_tx)
@@ -136,8 +133,8 @@ class TestTransactionValidation(object):
 class TestMultipleInputs(object):
     def test_transfer_single_owner_single_input(self, b, inputs, user_pk, user_sk):
         user2_sk, user2_pk = crypto.generate_key_pair()
-        tx_link = b.fastquery.get_outputs_by_public_key(user_pk).pop()
-        input_tx = b.get_transaction(tx_link.txid)
+        tx_link = b.models.fastquery.get_outputs_by_public_key(user_pk).pop()
+        input_tx = b.models.get_transaction(tx_link.txid)
         tx_converted = Transaction.from_dict(input_tx.to_dict(), True)
 
         tx = Transfer.generate(tx_converted.to_inputs(), [([user2_pk], 1)], asset_ids=[input_tx.id])
@@ -151,9 +148,9 @@ class TestMultipleInputs(object):
     def test_single_owner_before_multiple_owners_after_single_input(self, b, user_sk, user_pk, inputs):
         user2_sk, user2_pk = crypto.generate_key_pair()
         user3_sk, user3_pk = crypto.generate_key_pair()
-        tx_link = b.fastquery.get_outputs_by_public_key(user_pk).pop()
+        tx_link = b.models.fastquery.get_outputs_by_public_key(user_pk).pop()
 
-        input_tx = b.get_transaction(tx_link.txid)
+        input_tx = b.models.get_transaction(tx_link.txid)
         tx_converted = Transaction.from_dict(input_tx.to_dict(), True)
 
         tx = Transfer.generate(tx_converted.to_inputs(), [([user2_pk, user3_pk], 1)], asset_ids=[input_tx.id])
@@ -170,10 +167,10 @@ class TestMultipleInputs(object):
 
         tx = Create.generate([alice.public_key], [([user_pk, user2_pk], 1)])
         tx = tx.sign([alice.private_key])
-        b.store_bulk_transactions([tx])
+        b.models.store_bulk_transactions([tx])
 
-        owned_input = b.fastquery.get_outputs_by_public_key(user_pk).pop()
-        input_tx = b.get_transaction(owned_input.txid)
+        owned_input = b.models.fastquery.get_outputs_by_public_key(user_pk).pop()
+        input_tx = b.models.get_transaction(owned_input.txid)
         input_tx_converted = Transaction.from_dict(input_tx.to_dict(), True)
 
         transfer_tx = Transfer.generate(input_tx_converted.to_inputs(), [([user3_pk], 1)], asset_ids=[input_tx.id])
@@ -192,11 +189,11 @@ class TestMultipleInputs(object):
 
         tx = Create.generate([alice.public_key], [([user_pk, user2_pk], 1)])
         tx = tx.sign([alice.private_key])
-        b.store_bulk_transactions([tx])
+        b.models.store_bulk_transactions([tx])
 
         # get input
-        tx_link = b.fastquery.get_outputs_by_public_key(user_pk).pop()
-        tx_input = b.get_transaction(tx_link.txid)
+        tx_link = b.models.fastquery.get_outputs_by_public_key(user_pk).pop()
+        tx_input = b.models.get_transaction(tx_link.txid)
         input_tx_converted = Transaction.from_dict(tx_input.to_dict(), True)
 
         tx = Transfer.generate(input_tx_converted.to_inputs(), [([user3_pk, user4_pk], 1)], asset_ids=[tx_input.id])
@@ -211,19 +208,19 @@ class TestMultipleInputs(object):
 
         tx = Create.generate([alice.public_key], [([user_pk], 1)])
         tx = tx.sign([alice.private_key])
-        b.store_bulk_transactions([tx])
+        b.models.store_bulk_transactions([tx])
 
-        owned_inputs_user1 = b.fastquery.get_outputs_by_public_key(user_pk)
-        owned_inputs_user2 = b.fastquery.get_outputs_by_public_key(user2_pk)
+        owned_inputs_user1 = b.models.fastquery.get_outputs_by_public_key(user_pk)
+        owned_inputs_user2 = b.models.fastquery.get_outputs_by_public_key(user2_pk)
         assert owned_inputs_user1 == [TransactionLink(tx.id, 0)]
         assert owned_inputs_user2 == []
 
         tx_transfer = Transfer.generate(tx.to_inputs(), [([user2_pk], 1)], asset_ids=[tx.id])
         tx_transfer = tx_transfer.sign([user_sk])
-        b.store_bulk_transactions([tx_transfer])
+        b.models.store_bulk_transactions([tx_transfer])
 
-        owned_inputs_user1 = b.fastquery.get_outputs_by_public_key(user_pk)
-        owned_inputs_user2 = b.fastquery.get_outputs_by_public_key(user2_pk)
+        owned_inputs_user1 = b.models.fastquery.get_outputs_by_public_key(user_pk)
+        owned_inputs_user2 = b.models.fastquery.get_outputs_by_public_key(user2_pk)
 
         assert owned_inputs_user1 == [TransactionLink(tx.id, 0)]
         assert owned_inputs_user2 == [TransactionLink(tx_transfer.id, 0)]
@@ -234,11 +231,11 @@ class TestMultipleInputs(object):
         # create divisible asset
         tx_create = Create.generate([alice.public_key], [([user_pk], 1), ([user_pk], 1)])
         tx_create_signed = tx_create.sign([alice.private_key])
-        b.store_bulk_transactions([tx_create_signed])
+        b.models.store_bulk_transactions([tx_create_signed])
 
         # get input
-        owned_inputs_user1 = b.fastquery.get_outputs_by_public_key(user_pk)
-        owned_inputs_user2 = b.fastquery.get_outputs_by_public_key(user2_pk)
+        owned_inputs_user1 = b.models.fastquery.get_outputs_by_public_key(user_pk)
+        owned_inputs_user2 = b.models.fastquery.get_outputs_by_public_key(user2_pk)
 
         expected_owned_inputs_user1 = [TransactionLink(tx_create.id, 0), TransactionLink(tx_create.id, 1)]
         assert owned_inputs_user1 == expected_owned_inputs_user1
@@ -249,10 +246,10 @@ class TestMultipleInputs(object):
             tx_create.to_inputs(), [([user2_pk], 1), ([user2_pk], 1)], asset_ids=[tx_create.id]
         )
         tx_transfer_signed = tx_transfer.sign([user_sk])
-        b.store_bulk_transactions([tx_transfer_signed])
+        b.models.store_bulk_transactions([tx_transfer_signed])
 
-        owned_inputs_user1 = b.fastquery.get_outputs_by_public_key(user_pk)
-        owned_inputs_user2 = b.fastquery.get_outputs_by_public_key(user2_pk)
+        owned_inputs_user1 = b.models.fastquery.get_outputs_by_public_key(user_pk)
+        owned_inputs_user2 = b.models.fastquery.get_outputs_by_public_key(user2_pk)
         assert owned_inputs_user1 == expected_owned_inputs_user1
         assert owned_inputs_user2 == [TransactionLink(tx_transfer.id, 0), TransactionLink(tx_transfer.id, 1)]
 
@@ -263,10 +260,10 @@ class TestMultipleInputs(object):
         tx = Create.generate([alice.public_key], [([user_pk, user2_pk], 1)])
         tx = tx.sign([alice.private_key])
 
-        b.store_bulk_transactions([tx])
+        b.models.store_bulk_transactions([tx])
 
-        owned_inputs_user1 = b.fastquery.get_outputs_by_public_key(user_pk)
-        owned_inputs_user2 = b.fastquery.get_outputs_by_public_key(user_pk)
+        owned_inputs_user1 = b.models.fastquery.get_outputs_by_public_key(user_pk)
+        owned_inputs_user2 = b.models.fastquery.get_outputs_by_public_key(user_pk)
         expected_owned_inputs_user1 = [TransactionLink(tx.id, 0)]
 
         assert owned_inputs_user1 == owned_inputs_user2
@@ -274,11 +271,11 @@ class TestMultipleInputs(object):
 
         tx = Transfer.generate(tx.to_inputs(), [([user3_pk], 1)], asset_ids=[tx.id])
         tx = tx.sign([user_sk, user2_sk])
-        b.store_bulk_transactions([tx])
+        b.models.store_bulk_transactions([tx])
 
-        owned_inputs_user1 = b.fastquery.get_outputs_by_public_key(user_pk)
-        owned_inputs_user2 = b.fastquery.get_outputs_by_public_key(user2_pk)
-        spent_user1 = b.get_spent(tx.id, 0)
+        owned_inputs_user1 = b.models.fastquery.get_outputs_by_public_key(user_pk)
+        owned_inputs_user2 = b.models.fastquery.get_outputs_by_public_key(user2_pk)
+        spent_user1 = b.models.get_spent(tx.id, 0)
 
         assert owned_inputs_user1 == owned_inputs_user2
         assert not spent_user1
@@ -288,21 +285,21 @@ class TestMultipleInputs(object):
 
         tx = Create.generate([alice.public_key], [([user_pk], 1)])
         tx = tx.sign([alice.private_key])
-        b.store_bulk_transactions([tx])
+        b.models.store_bulk_transactions([tx])
 
-        owned_inputs_user1 = b.fastquery.get_outputs_by_public_key(user_pk).pop()
+        owned_inputs_user1 = b.models.fastquery.get_outputs_by_public_key(user_pk).pop()
 
         # check spents
         input_txid = owned_inputs_user1.txid
-        spent_inputs_user1 = b.get_spent(input_txid, 0)
+        spent_inputs_user1 = b.models.get_spent(input_txid, 0)
         assert spent_inputs_user1 is None
 
         # create a transaction and send it
         tx = Transfer.generate(tx.to_inputs(), [([user2_pk], 1)], asset_ids=[tx.id])
         tx = tx.sign([user_sk])
-        b.store_bulk_transactions([tx])
+        b.models.store_bulk_transactions([tx])
 
-        spent_inputs_user1 = b.get_spent(input_txid, 0)
+        spent_inputs_user1 = b.models.get_spent(input_txid, 0)
         assert spent_inputs_user1 == tx.to_dict()
 
     def test_get_spent_single_tx_multiple_outputs(self, b, user_sk, user_pk, alice):
@@ -312,29 +309,29 @@ class TestMultipleInputs(object):
         # create a divisible asset with 3 outputs
         tx_create = Create.generate([alice.public_key], [([user_pk], 1), ([user_pk], 1), ([user_pk], 1)])
         tx_create_signed = tx_create.sign([alice.private_key])
-        b.store_bulk_transactions([tx_create_signed])
+        b.models.store_bulk_transactions([tx_create_signed])
 
-        owned_inputs_user1 = b.fastquery.get_outputs_by_public_key(user_pk)
+        owned_inputs_user1 = b.models.fastquery.get_outputs_by_public_key(user_pk)
 
         # check spents
         for input_tx in owned_inputs_user1:
-            assert b.get_spent(input_tx.txid, input_tx.output) is None
+            assert b.models.get_spent(input_tx.txid, input_tx.output) is None
 
         # transfer the first 2 inputs
         tx_transfer = Transfer.generate(
             tx_create.to_inputs()[:2], [([user2_pk], 1), ([user2_pk], 1)], asset_ids=[tx_create.id]
         )
         tx_transfer_signed = tx_transfer.sign([user_sk])
-        b.store_bulk_transactions([tx_transfer_signed])
+        b.models.store_bulk_transactions([tx_transfer_signed])
 
         # check that used inputs are marked as spent
         for ffill in tx_create.to_inputs()[:2]:
-            spent_tx = b.get_spent(ffill.fulfills.txid, ffill.fulfills.output)
+            spent_tx = b.models.get_spent(ffill.fulfills.txid, ffill.fulfills.output)
             assert spent_tx == tx_transfer_signed.to_dict()
 
         # check if remaining transaction that was unspent is also perceived
         # spendable by Planetmint
-        assert b.get_spent(tx_create.to_inputs()[2].fulfills.txid, 2) is None
+        assert b.models.get_spent(tx_create.to_inputs()[2].fulfills.txid, 2) is None
 
     def test_get_spent_multiple_owners(self, b, user_sk, user_pk, alice):
         user2_sk, user2_pk = crypto.generate_key_pair()
@@ -347,71 +344,71 @@ class TestMultipleInputs(object):
             tx = tx.sign([alice.private_key])
             transactions.append(tx)
 
-        b.store_bulk_transactions(transactions)
+        b.models.store_bulk_transactions(transactions)
 
-        owned_inputs_user1 = b.fastquery.get_outputs_by_public_key(user_pk)
+        owned_inputs_user1 = b.models.fastquery.get_outputs_by_public_key(user_pk)
         # check spents
         for input_tx in owned_inputs_user1:
-            assert b.get_spent(input_tx.txid, input_tx.output) is None
+            assert b.models.get_spent(input_tx.txid, input_tx.output) is None
 
         # create a transaction
         tx = Transfer.generate(transactions[0].to_inputs(), [([user3_pk], 1)], asset_ids=[transactions[0].id])
         tx = tx.sign([user_sk, user2_sk])
-        b.store_bulk_transactions([tx])
+        b.models.store_bulk_transactions([tx])
 
         # check that used inputs are marked as spent
-        assert b.get_spent(transactions[0].id, 0) == tx.to_dict()
+        assert b.models.get_spent(transactions[0].id, 0) == tx.to_dict()
         # check that the other remain marked as unspent
         for unspent in transactions[1:]:
-            assert b.get_spent(unspent.id, 0) is None
+            assert b.models.get_spent(unspent.id, 0) is None
 
 
-def test_get_outputs_filtered_only_unspent():
+def test_get_outputs_filtered_only_unspent(b):
     from transactions.common.transaction import TransactionLink
 
-    from planetmint.lib import Planetmint
-
-    go = "planetmint.fastquery.FastQuery.get_outputs_by_public_key"
+    go = "planetmint.model.fastquery.FastQuery.get_outputs_by_public_key"
     with patch(go) as get_outputs:
         get_outputs.return_value = [TransactionLink("a", 1), TransactionLink("b", 2)]
-        fs = "planetmint.fastquery.FastQuery.filter_spent_outputs"
+        fs = "planetmint.model.fastquery.FastQuery.filter_spent_outputs"
         with patch(fs) as filter_spent:
             filter_spent.return_value = [TransactionLink("b", 2)]
-            out = Planetmint().get_outputs_filtered("abc", spent=False)
+            out = b.models.get_outputs_filtered("abc", spent=False)
     get_outputs.assert_called_once_with("abc")
     assert out == [TransactionLink("b", 2)]
 
 
-def test_get_outputs_filtered_only_spent():
+def test_get_outputs_filtered_only_spent(b):
     from transactions.common.transaction import TransactionLink
 
-    from planetmint.lib import Planetmint
-
-    go = "planetmint.fastquery.FastQuery.get_outputs_by_public_key"
+    go = "planetmint.model.fastquery.FastQuery.get_outputs_by_public_key"
     with patch(go) as get_outputs:
         get_outputs.return_value = [TransactionLink("a", 1), TransactionLink("b", 2)]
-        fs = "planetmint.fastquery.FastQuery.filter_unspent_outputs"
+        fs = "planetmint.model.fastquery.FastQuery.filter_unspent_outputs"
         with patch(fs) as filter_spent:
             filter_spent.return_value = [TransactionLink("b", 2)]
-            out = Planetmint().get_outputs_filtered("abc", spent=True)
+            out = b.models.get_outputs_filtered("abc", spent=True)
     get_outputs.assert_called_once_with("abc")
     assert out == [TransactionLink("b", 2)]
 
 
-@patch("planetmint.fastquery.FastQuery.filter_unspent_outputs")
-@patch("planetmint.fastquery.FastQuery.filter_spent_outputs")
-def test_get_outputs_filtered(filter_spent, filter_unspent):
+# @patch("planetmint.model.fastquery.FastQuery.filter_unspent_outputs")
+# @patch("planetmint.model.fastquery.FastQuery.filter_spent_outputs")
+def test_get_outputs_filtered(
+    b,
+    mocker,
+):
     from transactions.common.transaction import TransactionLink
 
-    from planetmint.lib import Planetmint
+    mock_filter_spent_outputs = mocker.patch("planetmint.model.fastquery.FastQuery.filter_spent_outputs")
+    mock_filter_unspent_outputs = mocker.patch("planetmint.model.fastquery.FastQuery.filter_unspent_outputs")
 
-    go = "planetmint.fastquery.FastQuery.get_outputs_by_public_key"
+    go = "planetmint.model.fastquery.FastQuery.get_outputs_by_public_key"
     with patch(go) as get_outputs:
         get_outputs.return_value = [TransactionLink("a", 1), TransactionLink("b", 2)]
-        out = Planetmint().get_outputs_filtered("abc")
+        out = b.models.get_outputs_filtered("abc")
     get_outputs.assert_called_once_with("abc")
-    filter_spent.assert_not_called()
-    filter_unspent.assert_not_called()
+    mock_filter_spent_outputs.assert_not_called()
+    mock_filter_unspent_outputs.assert_not_called()
     assert out == get_outputs.return_value
 
 
@@ -425,7 +422,7 @@ def test_cant_spend_same_input_twice_in_tx(b, alice):
     tx_create = Create.generate([alice.public_key], [([alice.public_key], 100)])
     tx_create_signed = tx_create.sign([alice.private_key])
     assert b.validate_transaction(tx_create_signed) == tx_create_signed
-    b.store_bulk_transactions([tx_create_signed])
+    b.models.store_bulk_transactions([tx_create_signed])
 
     # Create a transfer transaction with duplicated fulfillments
     dup_inputs = tx_create.to_inputs() + tx_create.to_inputs()
@@ -450,6 +447,6 @@ def test_transaction_unicode(b, alice):
     )
 
     tx_1 = copy.deepcopy(tx)
-    b.store_bulk_transactions([tx])
+    b.models.store_bulk_transactions([tx])
 
     assert beer_json["data"] in serialize(tx_1.to_dict())

tests/elections/test_election.py

@@ -1,7 +1,7 @@
 import pytest
 
 from tests.utils import generate_election, generate_validators
-from planetmint.lib import Block
+from planetmint.abci.block import Block
 from transactions.types.elections.election import Election
 from transactions.types.elections.chain_migration_election import ChainMigrationElection
 from transactions.types.elections.validator_election import ValidatorElection
@@ -10,7 +10,7 @@ from transactions.types.elections.validator_election import ValidatorElection
 @pytest.mark.bdb
 def test_process_block_concludes_all_elections(b):
     validators = generate_validators([1] * 4)
-    b.store_validator_set(1, [v["storage"] for v in validators])
+    b.models.store_validator_set(1, [v["storage"] for v in validators])
 
     new_validator = generate_validators([1])[0]
 
@@ -29,18 +29,18 @@ def test_process_block_concludes_all_elections(b):
     txs += [election]
     total_votes += votes
 
-    b.store_abci_chain(1, "chain-X")
+    b.models.store_abci_chain(1, "chain-X")
     b.process_block(1, txs)
-    b.store_block(Block(height=1, transactions=[tx.id for tx in txs], app_hash="")._asdict())
-    b.store_bulk_transactions(txs)
+    b.models.store_block(Block(height=1, transactions=[tx.id for tx in txs], app_hash="")._asdict())
+    b.models.store_bulk_transactions(txs)
 
     b.process_block(2, total_votes)
 
-    validators = b.get_validators()
+    validators = b.models.get_validators()
     assert len(validators) == 5
     assert new_validator["storage"] in validators
 
-    chain = b.get_latest_abci_chain()
+    chain = b.models.get_latest_abci_chain()
     assert chain
     assert chain == {
         "height": 2,
@@ -49,13 +49,13 @@ def test_process_block_concludes_all_elections(b):
     }
 
     for tx in txs:
-        assert b.get_election(tx.id)["is_concluded"]
+        assert b.models.get_election(tx.id)["is_concluded"]
 
 
 @pytest.mark.bdb
 def test_process_block_approves_only_one_validator_update(b):
     validators = generate_validators([1] * 4)
-    b.store_validator_set(1, [v["storage"] for v in validators])
+    b.models.store_validator_set(1, [v["storage"] for v in validators])
 
     new_validator = generate_validators([1])[0]
 
@@ -78,24 +78,24 @@ def test_process_block_approves_only_one_validator_update(b):
     total_votes += votes
 
     b.process_block(1, txs)
-    b.store_block(Block(height=1, transactions=[tx.id for tx in txs], app_hash="")._asdict())
-    b.store_bulk_transactions(txs)
+    b.models.store_block(Block(height=1, transactions=[tx.id for tx in txs], app_hash="")._asdict())
+    b.models.store_bulk_transactions(txs)
 
     b.process_block(2, total_votes)
 
-    validators = b.get_validators()
+    validators = b.models.get_validators()
     assert len(validators) == 5
     assert new_validator["storage"] in validators
     assert another_validator["storage"] not in validators
 
-    assert b.get_election(txs[0].id)["is_concluded"]
-    assert not b.get_election(txs[1].id)["is_concluded"]
+    assert b.models.get_election(txs[0].id)["is_concluded"]
+    assert not b.models.get_election(txs[1].id)["is_concluded"]
 
 
 @pytest.mark.bdb
 def test_process_block_approves_after_pending_validator_update(b):
     validators = generate_validators([1] * 4)
-    b.store_validator_set(1, [v["storage"] for v in validators])
+    b.models.store_validator_set(1, [v["storage"] for v in validators])
 
     new_validator = generate_validators([1])[0]
 
@@ -122,29 +122,33 @@ def test_process_block_approves_after_pending_validator_update(b):
     txs += [election]
     total_votes += votes
 
-    b.store_abci_chain(1, "chain-X")
+    b.models.store_abci_chain(1, "chain-X")
     b.process_block(1, txs)
-    b.store_block(Block(height=1, transactions=[tx.id for tx in txs], app_hash="")._asdict())
-    b.store_bulk_transactions(txs)
+    b.models.store_block(Block(height=1, transactions=[tx.id for tx in txs], app_hash="")._asdict())
+    b.models.store_bulk_transactions(txs)
 
     b.process_block(2, total_votes)
 
-    validators = b.get_validators()
+    validators = b.models.get_validators()
     assert len(validators) == 5
     assert new_validator["storage"] in validators
     assert another_validator["storage"] not in validators
 
-    assert b.get_election(txs[0].id)["is_concluded"]
-    assert not b.get_election(txs[1].id)["is_concluded"]
-    assert b.get_election(txs[2].id)["is_concluded"]
+    assert b.models.get_election(txs[0].id)["is_concluded"]
+    assert not b.models.get_election(txs[1].id)["is_concluded"]
+    assert b.models.get_election(txs[2].id)["is_concluded"]
 
-    assert b.get_latest_abci_chain() == {"height": 2, "chain_id": "chain-X-migrated-at-height-1", "is_synced": False}
+    assert b.models.get_latest_abci_chain() == {
+        "height": 2,
+        "chain_id": "chain-X-migrated-at-height-1",
+        "is_synced": False,
+    }
 
 
 @pytest.mark.bdb
 def test_process_block_does_not_approve_after_validator_update(b):
     validators = generate_validators([1] * 4)
-    b.store_validator_set(1, [v["storage"] for v in validators])
+    b.models.store_validator_set(1, [v["storage"] for v in validators])
 
     new_validator = generate_validators([1])[0]
 
@@ -158,9 +162,9 @@ def test_process_block_does_not_approve_after_validator_update(b):
     txs = [election]
     total_votes = votes
 
-    b.store_block(Block(height=1, transactions=[tx.id for tx in txs], app_hash="")._asdict())
+    b.models.store_block(Block(height=1, transactions=[tx.id for tx in txs], app_hash="")._asdict())
     b.process_block(1, txs)
-    b.store_bulk_transactions(txs)
+    b.models.store_bulk_transactions(txs)
 
     second_election, second_votes = generate_election(
         b, ChainMigrationElection, public_key, private_key, [{"data": {}}], voter_keys
@@ -168,19 +172,21 @@ def test_process_block_does_not_approve_after_validator_update(b):
 
     b.process_block(2, total_votes + [second_election])
 
-    b.store_block(Block(height=2, transactions=[v.id for v in total_votes + [second_election]], app_hash="")._asdict())
+    b.models.store_block(
+        Block(height=2, transactions=[v.id for v in total_votes + [second_election]], app_hash="")._asdict()
+    )
 
-    b.store_abci_chain(1, "chain-X")
+    b.models.store_abci_chain(1, "chain-X")
     b.process_block(3, second_votes)
 
-    assert not b.get_election(second_election.id)["is_concluded"]
-    assert b.get_latest_abci_chain() == {"height": 1, "chain_id": "chain-X", "is_synced": True}
+    assert not b.models.get_election(second_election.id)["is_concluded"]
+    assert b.models.get_latest_abci_chain() == {"height": 1, "chain_id": "chain-X", "is_synced": True}
 
 
 @pytest.mark.bdb
 def test_process_block_applies_only_one_migration(b):
     validators = generate_validators([1] * 4)
-    b.store_validator_set(1, [v["storage"] for v in validators])
+    b.models.store_validator_set(1, [v["storage"] for v in validators])
 
     public_key = validators[0]["public_key"]
     private_key = validators[0]["private_key"]
@@ -195,13 +201,13 @@ def test_process_block_applies_only_one_migration(b):
     txs += [election]
     total_votes += votes
 
-    b.store_abci_chain(1, "chain-X")
+    b.models.store_abci_chain(1, "chain-X")
     b.process_block(1, txs)
-    b.store_block(Block(height=1, transactions=[tx.id for tx in txs], app_hash="")._asdict())
-    b.store_bulk_transactions(txs)
+    b.models.store_block(Block(height=1, transactions=[tx.id for tx in txs], app_hash="")._asdict())
+    b.models.store_bulk_transactions(txs)
 
     b.process_block(1, total_votes)
-    chain = b.get_latest_abci_chain()
+    chain = b.models.get_latest_abci_chain()
     assert chain
     assert chain == {
         "height": 2,
@@ -209,8 +215,8 @@ def test_process_block_applies_only_one_migration(b):
         "chain_id": "chain-X-migrated-at-height-1",
     }
 
-    assert b.get_election(txs[0].id)["is_concluded"]
-    assert not b.get_election(txs[1].id)["is_concluded"]
+    assert b.models.get_election(txs[0].id)["is_concluded"]
+    assert not b.models.get_election(txs[1].id)["is_concluded"]
 
 
 def test_process_block_gracefully_handles_empty_block(b):

tests/tendermint/test_core.py

@@ -15,14 +15,13 @@ from transactions import ValidatorElection, ChainMigrationElection
 from transactions.common.crypto import generate_key_pair
 from transactions.types.assets.create import Create
 from transactions.types.assets.transfer import Transfer
-from planetmint import App
+from planetmint.abci.core import App
 from planetmint.backend import query
-from planetmint.core import OkCode, CodeTypeError, rollback
-from planetmint.lib import Block
-from planetmint.tendermint_utils import new_validator_set
-from planetmint.tendermint_utils import public_key_to_base64
+from planetmint.abci.core import OkCode, CodeTypeError
+from planetmint.abci.block import Block
+from planetmint.abci.tendermint_utils import new_validator_set
+from planetmint.abci.tendermint_utils import public_key_to_base64
 from planetmint.version import __tm_supported_versions__
-from planetmint.backend.tarantool.const import TARANT_TABLE_GOVERNANCE
 from tests.utils import generate_election, generate_validators
 
 pytestmark = pytest.mark.bdb
@@ -52,9 +51,9 @@ def test_init_chain_successfully_registers_chain(b):
     request = generate_init_chain_request("chain-XYZ")
     res = App(b).init_chain(request)
     assert res == types.ResponseInitChain()
-    chain = query.get_latest_abci_chain(b.connection)
+    chain = query.get_latest_abci_chain(b.models.connection)
     assert chain == {"height": 0, "chain_id": "chain-XYZ", "is_synced": True}
-    assert query.get_latest_block(b.connection) == {
+    assert query.get_latest_block(b.models.connection) == {
         "height": 0,
         "app_hash": "",
         "transaction_ids": [],
@@ -67,7 +66,7 @@ def test_init_chain_ignores_invalid_init_chain_requests(b):
     res = App(b).init_chain(request)
     assert res == types.ResponseInitChain()
 
-    validator_set = query.get_validator_set(b.connection)
+    validator_set = query.get_validator_set(b.models.connection)
 
     invalid_requests = [
         request,  # the same request again
@@ -80,11 +79,11 @@ def test_init_chain_ignores_invalid_init_chain_requests(b):
         with pytest.raises(SystemExit):
             App(b).init_chain(r)
         # assert nothing changed - neither validator set, nor chain ID
-        new_validator_set = query.get_validator_set(b.connection)
+        new_validator_set = query.get_validator_set(b.models.connection)
         assert new_validator_set == validator_set
-        new_chain_id = query.get_latest_abci_chain(b.connection)["chain_id"]
+        new_chain_id = query.get_latest_abci_chain(b.models.connection)["chain_id"]
         assert new_chain_id == "chain-XYZ"
-        assert query.get_latest_block(b.connection) == {
+        assert query.get_latest_block(b.models.connection) == {
             "height": 0,
             "app_hash": "",
             "transaction_ids": [],
@@ -97,10 +96,10 @@ def test_init_chain_recognizes_new_chain_after_migration(b):
     res = App(b).init_chain(request)
     assert res == types.ResponseInitChain()
 
-    validator_set = query.get_validator_set(b.connection)["validators"]
+    validator_set = query.get_validator_set(b.models.connection)["validators"]
 
     # simulate a migration
-    query.store_block(b.connection, Block(app_hash="", height=1, transactions=[])._asdict())
+    query.store_block(b.models.connection, Block(app_hash="", height=1, transactions=[])._asdict())
     b.migrate_abci_chain()
 
     # the same or other mismatching requests are ignored
@@ -113,12 +112,12 @@ def test_init_chain_recognizes_new_chain_after_migration(b):
     for r in invalid_requests:
         with pytest.raises(SystemExit):
             App(b).init_chain(r)
-        assert query.get_latest_abci_chain(b.connection) == {
+        assert query.get_latest_abci_chain(b.models.connection) == {
             "chain_id": "chain-XYZ-migrated-at-height-1",
             "is_synced": False,
             "height": 2,
         }
-        new_validator_set = query.get_validator_set(b.connection)["validators"]
+        new_validator_set = query.get_validator_set(b.models.connection)["validators"]
         assert new_validator_set == validator_set
 
     # a request with the matching chain ID and matching validator set
@@ -126,12 +125,12 @@ def test_init_chain_recognizes_new_chain_after_migration(b):
     request = generate_init_chain_request("chain-XYZ-migrated-at-height-1", validators)
     res = App(b).init_chain(request)
     assert res == types.ResponseInitChain()
-    assert query.get_latest_abci_chain(b.connection) == {
+    assert query.get_latest_abci_chain(b.models.connection) == {
         "chain_id": "chain-XYZ-migrated-at-height-1",
         "is_synced": True,
         "height": 2,
     }
-    assert query.get_latest_block(b.connection) == {
+    assert query.get_latest_block(b.models.connection) == {
         "height": 2,
         "app_hash": "",
         "transaction_ids": [],
@@ -146,14 +145,14 @@ def test_init_chain_recognizes_new_chain_after_migration(b):
     for r in invalid_requests:
         with pytest.raises(SystemExit):
             App(b).init_chain(r)
-        assert query.get_latest_abci_chain(b.connection) == {
+        assert query.get_latest_abci_chain(b.models.connection) == {
             "chain_id": "chain-XYZ-migrated-at-height-1",
             "is_synced": True,
             "height": 2,
         }
-        new_validator_set = query.get_validator_set(b.connection)["validators"]
+        new_validator_set = query.get_validator_set(b.models.connection)["validators"]
         assert new_validator_set == validator_set
-        assert query.get_latest_block(b.connection) == {
+        assert query.get_latest_block(b.models.connection) == {
             "height": 2,
             "app_hash": "",
             "transaction_ids": [],
@@ -168,28 +167,28 @@ def test_info(b):
     assert res.last_block_height == 0
     assert res.last_block_app_hash == b""
 
-    b.store_block(Block(app_hash="1", height=1, transactions=[])._asdict())
+    b.models.store_block(Block(app_hash="1", height=1, transactions=[])._asdict())
     res = app.info(r)
     assert res.last_block_height == 1
     assert res.last_block_app_hash == b"1"
 
     # simulate a migration and assert the height is shifted
-    b.store_abci_chain(2, "chain-XYZ")
+    b.models.store_abci_chain(2, "chain-XYZ")
     app = App(b)
-    b.store_block(Block(app_hash="2", height=2, transactions=[])._asdict())
+    b.models.store_block(Block(app_hash="2", height=2, transactions=[])._asdict())
     res = app.info(r)
     assert res.last_block_height == 0
     assert res.last_block_app_hash == b"2"
 
-    b.store_block(Block(app_hash="3", height=3, transactions=[])._asdict())
+    b.models.store_block(Block(app_hash="3", height=3, transactions=[])._asdict())
     res = app.info(r)
     assert res.last_block_height == 1
     assert res.last_block_app_hash == b"3"
 
     # it's always the latest migration that is taken into account
-    b.store_abci_chain(4, "chain-XYZ-new")
+    b.models.store_abci_chain(4, "chain-XYZ-new")
     app = App(b)
-    b.store_block(Block(app_hash="4", height=4, transactions=[])._asdict())
+    b.models.store_block(Block(app_hash="4", height=4, transactions=[])._asdict())
     res = app.info(r)
     assert res.last_block_height == 0
     assert res.last_block_app_hash == b"4"
@@ -236,7 +235,7 @@ def test_deliver_tx__valid_create_updates_db_and_emits_event(b, init_chain_reque
 
     app.end_block(types.RequestEndBlock(height=99))
     app.commit()
-    assert b.get_transaction(tx.id).id == tx.id
+    assert b.models.get_transaction(tx.id).id == tx.id
     block_event = events.get()
     assert block_event.data["transactions"] == [tx]
 
@@ -265,7 +264,7 @@ def test_deliver_tx__double_spend_fails(b, init_chain_request):
 
     app.end_block(types.RequestEndBlock(height=99))
     app.commit()
-    assert b.get_transaction(tx.id).id == tx.id
+    assert b.models.get_transaction(tx.id).id == tx.id
     result = app.deliver_tx(encode_tx_to_bytes(tx))
     assert result.code == CodeTypeError
 
@@ -312,7 +311,7 @@ def test_end_block_return_validator_updates(b, init_chain_request):
 
     # generate a block containing a concluded validator election
     validators = generate_validators([1] * 4)
-    b.store_validator_set(1, [v["storage"] for v in validators])
+    b.models.store_validator_set(1, [v["storage"] for v in validators])
 
     new_validator = generate_validators([1])[0]
 
@@ -323,8 +322,8 @@ def test_end_block_return_validator_updates(b, init_chain_request):
     election, votes = generate_election(
         b, ValidatorElection, public_key, private_key, [{"data": new_validator["election"]}], voter_keys
     )
-    b.store_block(Block(height=1, transactions=[election.id], app_hash="")._asdict())
-    b.store_bulk_transactions([election])
+    b.models.store_block(Block(height=1, transactions=[election.id], app_hash="")._asdict())
+    b.models.store_bulk_transactions([election])
     b.process_block(1, [election])
 
     app.block_transactions = votes
@@ -336,7 +335,7 @@ def test_end_block_return_validator_updates(b, init_chain_request):
 
 
 def test_store_pre_commit_state_in_end_block(b, alice, init_chain_request):
-    from planetmint import App
+    from planetmint.abci.core import App
     from planetmint.backend import query
 
     tx = Create.generate(
@@ -353,32 +352,32 @@ def test_store_pre_commit_state_in_end_block(b, alice, init_chain_request):
     app.deliver_tx(encode_tx_to_bytes(tx))
     app.end_block(types.RequestEndBlock(height=99))
 
-    resp = query.get_pre_commit_state(b.connection)
+    resp = query.get_pre_commit_state(b.models.connection)
     assert resp["height"] == 99
     assert resp["transactions"] == [tx.id]
 
     app.begin_block(begin_block)
     app.deliver_tx(encode_tx_to_bytes(tx))
     app.end_block(types.RequestEndBlock(height=100))
-    resp = query.get_pre_commit_state(b.connection)
+    resp = query.get_pre_commit_state(b.models.connection)
     assert resp["height"] == 100
     assert resp["transactions"] == [tx.id]
 
     # simulate a chain migration and assert the height is shifted
-    b.store_abci_chain(100, "new-chain")
+    b.models.store_abci_chain(100, "new-chain")
     app = App(b)
     app.begin_block(begin_block)
     app.deliver_tx(encode_tx_to_bytes(tx))
     app.end_block(types.RequestEndBlock(height=1))
-    resp = query.get_pre_commit_state(b.connection)
+    resp = query.get_pre_commit_state(b.models.connection)
     assert resp["height"] == 101
     assert resp["transactions"] == [tx.id]
 
 
-def test_rollback_pre_commit_state_after_crash(b):
+def test_rollback_pre_commit_state_after_crash(b, test_models):
     validators = generate_validators([1] * 4)
-    b.store_validator_set(1, [v["storage"] for v in validators])
-    b.store_block(Block(height=1, transactions=[], app_hash="")._asdict())
+    b.models.store_validator_set(1, [v["storage"] for v in validators])
+    b.models.store_block(Block(height=1, transactions=[], app_hash="")._asdict())
 
     public_key = validators[0]["public_key"]
     private_key = validators[0]["private_key"]
@@ -399,35 +398,35 @@ def test_rollback_pre_commit_state_after_crash(b):
     total_votes += votes
     txs += [validator_election, *votes]
 
-    b.store_bulk_transactions(txs)
-    b.store_abci_chain(2, "new_chain")
-    b.store_validator_set(2, [v["storage"] for v in validators])
+    b.models.store_bulk_transactions(txs)
+    b.models.store_abci_chain(2, "new_chain")
+    b.models.store_validator_set(2, [v["storage"] for v in validators])
     # TODO change to `4` when upgrading to Tendermint 0.22.4.
-    b.store_validator_set(3, [new_validator["storage"]])
-    b.store_election(migration_election.id, 2, is_concluded=False)
-    b.store_election(validator_election.id, 2, is_concluded=True)
+    b.models.store_validator_set(3, [new_validator["storage"]])
+    b.models.store_election(migration_election.id, 2, is_concluded=False)
+    b.models.store_election(validator_election.id, 2, is_concluded=True)
 
     # no pre-commit state
-    rollback(b)
+    b.rollback()
 
     for tx in txs:
-        assert b.get_transaction(tx.id)
-    assert b.get_latest_abci_chain()
-    assert len(b.get_validator_set()["validators"]) == 1
-    assert b.get_election(migration_election.id)
-    assert b.get_election(validator_election.id)
+        assert b.models.get_transaction(tx.id)
+    assert b.models.get_latest_abci_chain()
+    assert len(b.models.get_validator_set()["validators"]) == 1
+    assert b.models.get_election(migration_election.id)
+    assert b.models.get_election(validator_election.id)
 
-    b.store_pre_commit_state({"height": 2, "transactions": [tx.id for tx in txs]})
+    b.models.store_pre_commit_state({"height": 2, "transactions": [tx.id for tx in txs]})
 
-    rollback(b)
+    b.rollback()
 
     for tx in txs:
-        assert not b.get_transaction(tx.id)
-    assert not b.get_latest_abci_chain()
-    assert len(b.get_validator_set()["validators"]) == 4
-    assert len(b.get_validator_set(2)["validators"]) == 4
-    assert not b.get_election(migration_election.id)
-    assert not b.get_election(validator_election.id)
+        assert not b.models.get_transaction(tx.id)
+    assert not b.models.get_latest_abci_chain()
+    assert len(b.models.get_validator_set()["validators"]) == 4
+    assert len(b.models.get_validator_set(2)["validators"]) == 4
+    assert not b.models.get_election(migration_election.id)
+    assert not b.models.get_election(validator_election.id)
 
 
 def test_new_validator_set(b):
@@ -452,8 +451,8 @@ def test_new_validator_set(b):
 
     validators = [node1]
     updates = [node1_new_power, node2]
-    b.store_validator_set(1, validators)
-    updated_validator_set = new_validator_set(b.get_validators(1), updates)
+    b.models.store_validator_set(1, validators)
+    updated_validator_set = new_validator_set(b.models.get_validators(1), updates)
 
     updated_validators = []
     for u in updates:
@@ -468,42 +467,42 @@ def test_new_validator_set(b):
 
 
 def test_info_aborts_if_chain_is_not_synced(b):
-    b.store_abci_chain(0, "chain-XYZ", False)
+    b.models.store_abci_chain(0, "chain-XYZ", False)
 
     with pytest.raises(SystemExit):
         App(b).info(types.RequestInfo())
 
 
 def test_check_tx_aborts_if_chain_is_not_synced(b):
-    b.store_abci_chain(0, "chain-XYZ", False)
+    b.models.store_abci_chain(0, "chain-XYZ", False)
 
     with pytest.raises(SystemExit):
         App(b).check_tx("some bytes")
 
 
 def test_begin_aborts_if_chain_is_not_synced(b):
-    b.store_abci_chain(0, "chain-XYZ", False)
+    b.models.store_abci_chain(0, "chain-XYZ", False)
 
     with pytest.raises(SystemExit):
         App(b).info(types.RequestBeginBlock())
 
 
 def test_deliver_tx_aborts_if_chain_is_not_synced(b):
-    b.store_abci_chain(0, "chain-XYZ", False)
+    b.models.store_abci_chain(0, "chain-XYZ", False)
 
     with pytest.raises(SystemExit):
         App(b).deliver_tx("some bytes")
 
 
 def test_end_block_aborts_if_chain_is_not_synced(b):
-    b.store_abci_chain(0, "chain-XYZ", False)
+    b.models.store_abci_chain(0, "chain-XYZ", False)
 
     with pytest.raises(SystemExit):
         App(b).info(types.RequestEndBlock())
 
 
 def test_commit_aborts_if_chain_is_not_synced(b):
-    b.store_abci_chain(0, "chain-XYZ", False)
+    b.models.store_abci_chain(0, "chain-XYZ", False)
 
     with pytest.raises(SystemExit):
         App(b).commit()

tests/tendermint/test_fastquery.py

@@ -13,40 +13,40 @@ pytestmark = pytest.mark.bdb
 
 
 @pytest.fixture
-def txns(b, user_pk, user_sk, user2_pk, user2_sk):
+def txns(b, user_pk, user_sk, user2_pk, user2_sk, test_models):
     txs = [
         Create.generate([user_pk], [([user2_pk], 1)]).sign([user_sk]),
         Create.generate([user2_pk], [([user_pk], 1)]).sign([user2_sk]),
         Create.generate([user_pk], [([user_pk], 1), ([user2_pk], 1)]).sign([user_sk]),
     ]
-    b.store_bulk_transactions(txs)
+    b.models.store_bulk_transactions(txs)
     return txs
 
 
-def test_get_outputs_by_public_key(b, user_pk, user2_pk, txns):
+def test_get_outputs_by_public_key(b, user_pk, user2_pk, txns, test_models):
     expected = [TransactionLink(txns[1].id, 0), TransactionLink(txns[2].id, 0)]
-    actual = b.fastquery.get_outputs_by_public_key(user_pk)
+    actual = test_models.fastquery.get_outputs_by_public_key(user_pk)
 
     _all_txs = set([tx.txid for tx in expected + actual])
     assert len(_all_txs) == 2
-    # assert b.fastquery.get_outputs_by_public_key(user_pk) == [ # OLD VERIFICATION
+    # assert b.models.fastquery.get_outputs_by_public_key(user_pk) == [ # OLD VERIFICATION
     #     TransactionLink(txns[1].id, 0),
     #     TransactionLink(txns[2].id, 0)
     # ]
-    actual_1 = b.fastquery.get_outputs_by_public_key(user2_pk)
+    actual_1 = test_models.fastquery.get_outputs_by_public_key(user2_pk)
     expected_1 = [
         TransactionLink(txns[0].id, 0),
         TransactionLink(txns[2].id, 1),
     ]
     _all_tx_1 = set([tx.txid for tx in actual_1 + expected_1])
     assert len(_all_tx_1) == 2
-    # assert b.fastquery.get_outputs_by_public_key(user2_pk) == [ # OLD VERIFICATION
+    # assert b.models.fastquery.get_outputs_by_public_key(user2_pk) == [ # OLD VERIFICATION
     #     TransactionLink(txns[0].id, 0),
     #     TransactionLink(txns[2].id, 1),
     # ]
 
 
-def test_filter_spent_outputs(b, user_pk, user_sk):
+def test_filter_spent_outputs(b, user_pk, user_sk, test_models):
     out = [([user_pk], 1)]
     tx1 = Create.generate([user_pk], out * 2)
     tx1.sign([user_sk])
@@ -57,10 +57,10 @@ def test_filter_spent_outputs(b, user_pk, user_sk):
     tx2.sign([user_sk])
 
     # tx2 produces a new unspent. inputs[1] remains unspent.
-    b.store_bulk_transactions([tx1, tx2])
+    b.models.store_bulk_transactions([tx1, tx2])
 
-    outputs = b.fastquery.get_outputs_by_public_key(user_pk)
-    unspents = b.fastquery.filter_spent_outputs(outputs)
+    outputs = test_models.fastquery.get_outputs_by_public_key(user_pk)
+    unspents = test_models.fastquery.filter_spent_outputs(outputs)
 
     assert set(unsp for unsp in unspents) == {
         inputs[1].fulfills,
@@ -68,7 +68,7 @@ def test_filter_spent_outputs(b, user_pk, user_sk):
     }
 
 
-def test_filter_unspent_outputs(b, user_pk, user_sk):
+def test_filter_unspent_outputs(b, user_pk, user_sk, test_models):
     out = [([user_pk], 1)]
     tx1 = Create.generate([user_pk], out * 2)
     tx1.sign([user_sk])
@@ -79,27 +79,27 @@ def test_filter_unspent_outputs(b, user_pk, user_sk):
     tx2.sign([user_sk])
 
     # tx2 produces a new unspent. input[1] remains unspent.
-    b.store_bulk_transactions([tx1, tx2])
+    b.models.store_bulk_transactions([tx1, tx2])
 
-    outputs = b.fastquery.get_outputs_by_public_key(user_pk)
-    spents = b.fastquery.filter_unspent_outputs(outputs)
+    outputs = test_models.fastquery.get_outputs_by_public_key(user_pk)
+    spents = test_models.fastquery.filter_unspent_outputs(outputs)
 
     assert set(sp for sp in spents) == {
         inputs[0].fulfills,
     }
 
 
-def test_outputs_query_key_order(b, user_pk, user_sk, user2_pk, user2_sk):
+def test_outputs_query_key_order(b, user_pk, user_sk, user2_pk, user2_sk, test_models, test_validator):
     from planetmint import backend
     from planetmint.backend.connection import Connection
     from planetmint.backend import query
 
     tx1 = Create.generate([user_pk], [([user_pk], 3), ([user_pk], 2), ([user_pk], 1)]).sign([user_sk])
-    b.store_bulk_transactions([tx1])
+    b.models.store_bulk_transactions([tx1])
 
     inputs = tx1.to_inputs()
     tx2 = Transfer.generate([inputs[1]], [([user2_pk], 2)], [tx1.id]).sign([user_sk])
-    assert b.validate_transaction(tx2)
+    assert test_validator.validate_transaction(tx2)
 
     tx2_dict = tx2.to_dict()
     fulfills = tx2_dict["inputs"][0]["fulfills"]
@@ -107,28 +107,28 @@ def test_outputs_query_key_order(b, user_pk, user_sk, user2_pk, user2_sk):
         "transaction_id": fulfills["transaction_id"],
         "output_index": fulfills["output_index"],
     }
-    backend.query.store_transactions(b.connection, [tx2_dict])
+    backend.query.store_transactions(test_models.connection, [tx2_dict])
 
-    outputs = b.get_outputs_filtered(user_pk, spent=False)
+    outputs = test_models.get_outputs_filtered(user_pk, spent=False)
     assert len(outputs) == 2
 
-    outputs = b.get_outputs_filtered(user2_pk, spent=False)
+    outputs = test_models.get_outputs_filtered(user2_pk, spent=False)
     assert len(outputs) == 1
 
     # clean the transaction, metdata and asset collection
     connection = Connection()
-    query.delete_transactions(connection, txn_ids=[tx1.id, tx2.id])
+    query.delete_transactions(test_models.connection, txn_ids=[tx1.id, tx2.id])
 
-    b.store_bulk_transactions([tx1])
+    b.models.store_bulk_transactions([tx1])
     tx2_dict = tx2.to_dict()
     tx2_dict["inputs"][0]["fulfills"] = {
         "output_index": fulfills["output_index"],
         "transaction_id": fulfills["transaction_id"],
     }
 
-    backend.query.store_transactions(b.connection, [tx2_dict])
-    outputs = b.get_outputs_filtered(user_pk, spent=False)
+    backend.query.store_transactions(test_models.connection, [tx2_dict])
+    outputs = test_models.get_outputs_filtered(user_pk, spent=False)
     assert len(outputs) == 2
 
-    outputs = b.get_outputs_filtered(user2_pk, spent=False)
+    outputs = test_models.get_outputs_filtered(user2_pk, spent=False)
     assert len(outputs) == 1

tests/tendermint/test_integration.py

@@ -13,14 +13,16 @@ from tendermint.abci import types_pb2 as types
 from abci.server import ProtocolHandler
 from abci.utils import read_messages
 from transactions.common.transaction_mode_types import BROADCAST_TX_COMMIT, BROADCAST_TX_SYNC
+
+from planetmint.abci.rpc import MODE_COMMIT, MODE_LIST
 from planetmint.version import __tm_supported_versions__
 from io import BytesIO
 
 
 @pytest.mark.bdb
 def test_app(b, eventqueue_fixture, init_chain_request):
-    from planetmint import App
-    from planetmint.tendermint_utils import calculate_hash
+    from planetmint.abci.core import App
+    from planetmint.abci.tendermint_utils import calculate_hash
     from transactions.common.crypto import generate_key_pair
 
     app = App(b, eventqueue_fixture)
@@ -31,16 +33,16 @@ def test_app(b, eventqueue_fixture, init_chain_request):
     assert res
     assert res.info.last_block_app_hash == b""
     assert res.info.last_block_height == 0
-    assert not b.get_latest_block()
+    assert not b.models.get_latest_block()
 
     p.process("init_chain", types.Request(init_chain=init_chain_request))
-    block0 = b.get_latest_block()
+    block0 = b.models.get_latest_block()
     assert block0
     assert block0["height"] == 0
     assert block0["app_hash"] == ""
 
     pk = codecs.encode(init_chain_request.validators[0].pub_key.ed25519, "base64").decode().strip("\n")
-    [validator] = b.get_validators(height=1)
+    [validator] = b.models.get_validators(height=1)
     assert validator["public_key"]["value"] == pk
     assert validator["voting_power"] == 10
 
@@ -78,9 +80,9 @@ def test_app(b, eventqueue_fixture, init_chain_request):
     data = p.process("commit", None)
     res = next(read_messages(BytesIO(data), types.Response))
     assert res.commit.data == new_block_hash.encode("utf-8")
-    assert b.get_transaction(tx.id).id == tx.id
+    assert b.models.get_transaction(tx.id).id == tx.id
 
-    block0 = b.get_latest_block()
+    block0 = b.models.get_latest_block()
     assert block0
     assert block0["height"] == 1
     assert block0["app_hash"] == new_block_hash
@@ -98,7 +100,7 @@ def test_app(b, eventqueue_fixture, init_chain_request):
     res = next(read_messages(BytesIO(data), types.Response))
     assert res.commit.data == new_block_hash.encode("utf-8")
 
-    block0 = b.get_latest_block()
+    block0 = b.models.get_latest_block()
     assert block0
     assert block0["height"] == 2
 
@@ -107,7 +109,7 @@ def test_app(b, eventqueue_fixture, init_chain_request):
 
 
 @pytest.mark.abci
-def test_post_transaction_responses(tendermint_ws_url, b):
+def test_post_transaction_responses(tendermint_ws_url, b, test_abci_rpc):
     from transactions.common.crypto import generate_key_pair
 
     alice = generate_key_pair()
@@ -118,14 +120,18 @@ def test_post_transaction_responses(tendermint_ws_url, b):
         assets=[{"data": "QmaozNR7DZHQK1ZcU9p7QdrshMvXqWK6gpu5rmrkPdT3L4"}],
     ).sign([alice.private_key])
 
-    code, message = b.write_transaction(tx, BROADCAST_TX_COMMIT)
+    code, message = test_abci_rpc.write_transaction(
+        MODE_LIST, test_abci_rpc.tendermint_rpc_endpoint, MODE_COMMIT, tx, BROADCAST_TX_COMMIT
+    )
     assert code == 202
 
     tx_transfer = Transfer.generate(tx.to_inputs(), [([bob.public_key], 1)], asset_ids=[tx.id]).sign(
         [alice.private_key]
     )
 
-    code, message = b.write_transaction(tx_transfer, BROADCAST_TX_COMMIT)
+    code, message = test_abci_rpc.write_transaction(
+        MODE_LIST, test_abci_rpc.tendermint_rpc_endpoint, MODE_COMMIT, tx_transfer, BROADCAST_TX_COMMIT
+    )
     assert code == 202
 
     carly = generate_key_pair()
@@ -135,6 +141,8 @@ def test_post_transaction_responses(tendermint_ws_url, b):
         asset_ids=[tx.id],
     ).sign([alice.private_key])
     for mode in (BROADCAST_TX_SYNC, BROADCAST_TX_COMMIT):
-        code, message = b.write_transaction(double_spend, mode)
+        code, message = test_abci_rpc.write_transaction(
+            MODE_LIST, test_abci_rpc.tendermint_rpc_endpoint, MODE_COMMIT, double_spend, mode
+        )
         assert code == 500
         assert message == "Transaction validation failed"

tests/tendermint/test_lib.py

@@ -10,19 +10,20 @@ import pytest
 from unittest.mock import patch
 from transactions.types.assets.create import Create
 from transactions.types.assets.transfer import Transfer
-from operator import index
 from hashlib import sha3_256
-from pymongo import MongoClient
 from planetmint import backend
 from transactions.common.transaction_mode_types import (
     BROADCAST_TX_COMMIT,
     BROADCAST_TX_ASYNC,
     BROADCAST_TX_SYNC,
 )
-from planetmint.lib import Block
+from planetmint.abci.block import Block
 from ipld import marshal, multihash
 from uuid import uuid4
 
+from planetmint.abci.rpc import MODE_COMMIT, MODE_LIST
+from tests.utils import delete_unspent_outputs, get_utxoset_merkle_root, store_unspent_outputs, update_utxoset
+
 
 @pytest.mark.bdb
 def test_asset_is_separated_from_transaciton(b):
@@ -30,7 +31,7 @@ def test_asset_is_separated_from_transaciton(b):
     from transactions.common.crypto import generate_key_pair
     from planetmint.backend.tarantool.connection import TarantoolDBConnection
 
-    if isinstance(b.connection, TarantoolDBConnection):
+    if isinstance(b.models.connection, TarantoolDBConnection):
         pytest.skip("This specific function is skipped because, assets are stored differently if using Tarantool")
 
     alice = generate_key_pair()
@@ -60,29 +61,29 @@ def test_asset_is_separated_from_transaciton(b):
         [alice.private_key]
     )
 
-    # with store_bulk_transactions we use `insert_many` where PyMongo
+    # with b.models.store_bulk_transactions we use `insert_many` where PyMongo
     # automatically adds an `_id` field to the tx, therefore we need the
     # deepcopy, for more info see:
     # https://api.mongodb.com/python/current/faq.html#writes-and-ids
     tx_dict = copy.deepcopy(tx.to_dict())
 
-    b.store_bulk_transactions([tx])
-    assert "asset" not in backend.query.get_transaction_single(b.connection, tx.id)
-    assert backend.query.get_asset(b.connection, tx.id).data == assets[0]
-    assert b.get_transaction(tx.id).to_dict() == tx_dict
+    b.models.store_bulk_transactions([tx])
+    assert "asset" not in backend.query.get_transaction_single(b.models.connection, tx.id)
+    assert backend.query.get_asset(b.models.connection, tx.id).data == assets[0]
+    assert b.models.get_transaction(tx.id).to_dict() == tx_dict
 
 
 @pytest.mark.bdb
 def test_get_latest_block(b):
-    from planetmint.lib import Block
+    from planetmint.abci.block import Block
 
     for i in range(10):
         app_hash = os.urandom(16).hex()
         txn_id = os.urandom(16).hex()
         block = Block(app_hash=app_hash, height=i, transactions=[txn_id])._asdict()
-        b.store_block(block)
+        b.models.store_block(block)
 
-    block = b.get_latest_block()
+    block = b.models.get_latest_block()
     assert block["height"] == 9
 
 
@@ -99,9 +100,9 @@ def test_validation_error(b):
 
 
 @patch("requests.post")
-def test_write_and_post_transaction(mock_post, b):
+def test_write_and_post_transaction(mock_post, b, test_abci_rpc):
     from transactions.common.crypto import generate_key_pair
-    from planetmint.tendermint_utils import encode_transaction
+    from planetmint.abci.tendermint_utils import encode_transaction
 
     alice = generate_key_pair()
     tx = (
@@ -109,7 +110,9 @@ def test_write_and_post_transaction(mock_post, b):
     )
 
     tx = b.validate_transaction(tx)
-    b.write_transaction(tx, BROADCAST_TX_ASYNC)
+    test_abci_rpc.write_transaction(
+        MODE_LIST, test_abci_rpc.tendermint_rpc_endpoint, MODE_COMMIT, tx, BROADCAST_TX_ASYNC
+    )
 
     assert mock_post.called
     args, kwargs = mock_post.call_args
@@ -120,7 +123,7 @@ def test_write_and_post_transaction(mock_post, b):
 
 @patch("requests.post")
 @pytest.mark.parametrize("mode", [BROADCAST_TX_SYNC, BROADCAST_TX_ASYNC, BROADCAST_TX_COMMIT])
-def test_post_transaction_valid_modes(mock_post, b, mode):
+def test_post_transaction_valid_modes(mock_post, b, mode, test_abci_rpc):
     from transactions.common.crypto import generate_key_pair
 
     alice = generate_key_pair()
@@ -128,13 +131,13 @@ def test_post_transaction_valid_modes(mock_post, b, mode):
         Create.generate([alice.public_key], [([alice.public_key], 1)], assets=None).sign([alice.private_key]).to_dict()
     )
     tx = b.validate_transaction(tx)
-    b.write_transaction(tx, mode)
+    test_abci_rpc.write_transaction(MODE_LIST, test_abci_rpc.tendermint_rpc_endpoint, MODE_COMMIT, tx, mode)
 
     args, kwargs = mock_post.call_args
     assert mode == kwargs["json"]["method"]
 
 
-def test_post_transaction_invalid_mode(b):
+def test_post_transaction_invalid_mode(b, test_abci_rpc):
     from transactions.common.crypto import generate_key_pair
     from transactions.common.exceptions import ValidationError
 
@@ -144,18 +147,18 @@ def test_post_transaction_invalid_mode(b):
     )
     tx = b.validate_transaction(tx)
     with pytest.raises(ValidationError):
-        b.write_transaction(tx, "nope")
+        test_abci_rpc.write_transaction(MODE_LIST, test_abci_rpc.tendermint_rpc_endpoint, MODE_COMMIT, tx, "nope")
 
 
 @pytest.mark.bdb
 def test_update_utxoset(b, signed_create_tx, signed_transfer_tx, db_conn):
-    b.update_utxoset(signed_create_tx)
+    update_utxoset(b.models.connection, signed_create_tx)
     utxoset = db_conn.get_space("utxos")
     assert utxoset.select().rowcount == 1
     utxo = utxoset.select().data
     assert utxo[0][1] == signed_create_tx.id
     assert utxo[0][2] == 0
-    b.update_utxoset(signed_transfer_tx)
+    update_utxoset(b.models.connection, signed_transfer_tx)
     assert utxoset.select().rowcount == 1
     utxo = utxoset.select().data
     assert utxo[0][1] == signed_transfer_tx.id
@@ -165,26 +168,26 @@ def test_update_utxoset(b, signed_create_tx, signed_transfer_tx, db_conn):
 @pytest.mark.bdb
 def test_store_transaction(mocker, b, signed_create_tx, signed_transfer_tx):
     mocked_store_transaction = mocker.patch("planetmint.backend.query.store_transactions")
-    b.store_bulk_transactions([signed_create_tx])
-    mocked_store_transaction.assert_any_call(b.connection, [signed_create_tx.to_dict()], "transactions")
+    b.models.store_bulk_transactions([signed_create_tx])
+    mocked_store_transaction.assert_any_call(b.models.connection, [signed_create_tx.to_dict()], "transactions")
     mocked_store_transaction.reset_mock()
-    b.store_bulk_transactions([signed_transfer_tx])
+    b.models.store_bulk_transactions([signed_transfer_tx])
 
 
 @pytest.mark.bdb
 def test_store_bulk_transaction(mocker, b, signed_create_tx, signed_transfer_tx):
     mocked_store_transactions = mocker.patch("planetmint.backend.query.store_transactions")
-    b.store_bulk_transactions((signed_create_tx,))
-    mocked_store_transactions.assert_any_call(b.connection, [signed_create_tx.to_dict()], "transactions")
+    b.models.store_bulk_transactions((signed_create_tx,))
+    mocked_store_transactions.assert_any_call(b.models.connection, [signed_create_tx.to_dict()], "transactions")
     mocked_store_transactions.reset_mock()
-    b.store_bulk_transactions((signed_transfer_tx,))
+    b.models.store_bulk_transactions((signed_transfer_tx,))
 
 
 @pytest.mark.bdb
 def test_delete_zero_unspent_outputs(b, utxoset):
     unspent_outputs, utxo_collection = utxoset
     num_rows_before_operation = utxo_collection.select().rowcount
-    delete_res = b.delete_unspent_outputs()  # noqa: F841
+    delete_res = delete_unspent_outputs(b.models.connection)  # noqa: F841
     num_rows_after_operation = utxo_collection.select().rowcount
     # assert delete_res is None
     assert num_rows_before_operation == num_rows_after_operation
@@ -192,12 +195,12 @@ def test_delete_zero_unspent_outputs(b, utxoset):
 
 @pytest.mark.bdb
 def test_delete_one_unspent_outputs(b, dummy_unspent_outputs):
-    utxo_space = b.connection.get_space("utxos")
+    utxo_space = b.models.connection.get_space("utxos")
     for utxo in dummy_unspent_outputs:
         res = utxo_space.insert((uuid4().hex, utxo["transaction_id"], utxo["output_index"], utxo))
         assert res
 
-    b.delete_unspent_outputs(dummy_unspent_outputs[0])
+    delete_unspent_outputs(b.models.connection, dummy_unspent_outputs[0])
     res1 = utxo_space.select(["a", 1], index="utxo_by_transaction_id_and_output_index").data
     res2 = utxo_space.select(["b", 0], index="utxo_by_transaction_id_and_output_index").data
     assert len(res1) + len(res2) == 2
@@ -207,12 +210,12 @@ def test_delete_one_unspent_outputs(b, dummy_unspent_outputs):
 
 @pytest.mark.bdb
 def test_delete_many_unspent_outputs(b, dummy_unspent_outputs):
-    utxo_space = b.connection.get_space("utxos")
+    utxo_space = b.models.connection.get_space("utxos")
     for utxo in dummy_unspent_outputs:
         res = utxo_space.insert((uuid4().hex, utxo["transaction_id"], utxo["output_index"], utxo))
         assert res
 
-    b.delete_unspent_outputs(*dummy_unspent_outputs[::2])
+    delete_unspent_outputs(b.models.connection, *dummy_unspent_outputs[::2])
     res1 = utxo_space.select(["a", 0], index="utxo_by_transaction_id_and_output_index").data
     res2 = utxo_space.select(["b", 0], index="utxo_by_transaction_id_and_output_index").data
     assert len(res1) + len(res2) == 0
@@ -222,9 +225,9 @@ def test_delete_many_unspent_outputs(b, dummy_unspent_outputs):
 
 @pytest.mark.bdb
 def test_store_zero_unspent_output(b):
-    utxos = b.connection.get_space("utxos")
+    utxos = b.models.connection.get_space("utxos")
     num_rows_before_operation = utxos.select().rowcount
-    res = b.store_unspent_outputs()
+    res = store_unspent_outputs(b.models.connection)
     num_rows_after_operation = utxos.select().rowcount
     assert res is None
     assert num_rows_before_operation == num_rows_after_operation
@@ -234,8 +237,8 @@ def test_store_zero_unspent_output(b):
 def test_store_one_unspent_output(b, unspent_output_1, utxo_collection):
     from planetmint.backend.tarantool.connection import TarantoolDBConnection
 
-    res = b.store_unspent_outputs(unspent_output_1)
-    if not isinstance(b.connection, TarantoolDBConnection):
+    res = store_unspent_outputs(b.models.connection, unspent_output_1)
+    if not isinstance(b.models.connection, TarantoolDBConnection):
         assert res.acknowledged
         assert len(list(res)) == 1
         assert (
@@ -248,7 +251,7 @@ def test_store_one_unspent_output(b, unspent_output_1, utxo_collection):
             == 1
         )
     else:
-        utx_space = b.connection.get_space("utxos")
+        utx_space = b.models.connection.get_space("utxos")
         res = utx_space.select(
             [unspent_output_1["transaction_id"], unspent_output_1["output_index"]],
             index="utxo_by_transaction_id_and_output_index",
@@ -258,25 +261,25 @@ def test_store_one_unspent_output(b, unspent_output_1, utxo_collection):
 
 @pytest.mark.bdb
 def test_store_many_unspent_outputs(b, unspent_outputs):
-    b.store_unspent_outputs(*unspent_outputs)
-    utxo_space = b.connection.get_space("utxos")
+    store_unspent_outputs(b.models.connection, *unspent_outputs)
+    utxo_space = b.models.connection.get_space("utxos")
     res = utxo_space.select([unspent_outputs[0]["transaction_id"]], index="utxos_by_transaction_id")
     assert len(res.data) == 3
 
 
 def test_get_utxoset_merkle_root_when_no_utxo(b):
-    assert b.get_utxoset_merkle_root() == sha3_256(b"").hexdigest()
+    assert get_utxoset_merkle_root(b.models.connection) == sha3_256(b"").hexdigest()
 
 
 @pytest.mark.bdb
 def test_get_utxoset_merkle_root(b, dummy_unspent_outputs):
-    utxo_space = b.connection.get_space("utxos")
+    utxo_space = b.models.connection.get_space("utxos")
     for utxo in dummy_unspent_outputs:
         res = utxo_space.insert((uuid4().hex, utxo["transaction_id"], utxo["output_index"], utxo))
         assert res
 
     expected_merkle_root = "86d311c03115bf4d287f8449ca5828505432d69b82762d47077b1c00fe426eac"
-    merkle_root = b.get_utxoset_merkle_root()
+    merkle_root = get_utxoset_merkle_root(b.models.connection)
     assert merkle_root == expected_merkle_root
 
 
@@ -300,20 +303,20 @@ def test_get_spent_transaction_double_spend(b, alice, bob, carol):
         tx.to_inputs() + tx.to_inputs(), [([bob.public_key], 1)], asset_ids=[tx.id]
     ).sign([alice.private_key])
 
-    b.store_bulk_transactions([tx])
+    b.models.store_bulk_transactions([tx])
 
     with pytest.raises(DoubleSpend):
         b.validate_transaction(same_input_double_spend)
 
-    assert b.get_spent(tx.id, tx_transfer.inputs[0].fulfills.output, [tx_transfer])
+    assert b.models.get_spent(tx.id, tx_transfer.inputs[0].fulfills.output, [tx_transfer])
 
     with pytest.raises(DoubleSpend):
-        b.get_spent(tx.id, tx_transfer.inputs[0].fulfills.output, [tx_transfer, double_spend])
+        b.models.get_spent(tx.id, tx_transfer.inputs[0].fulfills.output, [tx_transfer, double_spend])
 
-    b.store_bulk_transactions([tx_transfer])
+    b.models.store_bulk_transactions([tx_transfer])
 
     with pytest.raises(DoubleSpend):
-        b.get_spent(tx.id, tx_transfer.inputs[0].fulfills.output, [double_spend])
+        b.models.get_spent(tx.id, tx_transfer.inputs[0].fulfills.output, [double_spend])
 
 
 def test_validation_with_transaction_buffer(b):
@@ -340,7 +343,7 @@ def test_validation_with_transaction_buffer(b):
 @pytest.mark.bdb
 def test_migrate_abci_chain_yields_on_genesis(b):
     b.migrate_abci_chain()
-    latest_chain = b.get_latest_abci_chain()
+    latest_chain = b.models.get_latest_abci_chain()
     assert latest_chain is None
 
 
@@ -361,10 +364,10 @@ def test_migrate_abci_chain_yields_on_genesis(b):
     ],
 )
 def test_migrate_abci_chain_generates_new_chains(b, chain, block_height, expected):
-    b.store_abci_chain(*chain)
-    b.store_block(Block(app_hash="", height=block_height, transactions=[])._asdict())
+    b.models.store_abci_chain(*chain)
+    b.models.store_block(Block(app_hash="", height=block_height, transactions=[])._asdict())
     b.migrate_abci_chain()
-    latest_chain = b.get_latest_abci_chain()
+    latest_chain = b.models.get_latest_abci_chain()
     assert latest_chain == expected
 
 
@@ -377,13 +380,13 @@ def test_get_spent_key_order(b, user_pk, user_sk, user2_pk, user2_sk):
     bob = generate_key_pair()
 
     tx1 = Create.generate([user_pk], [([alice.public_key], 3), ([user_pk], 2)]).sign([user_sk])
-    b.store_bulk_transactions([tx1])
+    b.models.store_bulk_transactions([tx1])
 
     inputs = tx1.to_inputs()
     tx2 = Transfer.generate([inputs[1]], [([user2_pk], 2)], [tx1.id]).sign([user_sk])
     assert b.validate_transaction(tx2)
 
-    b.store_bulk_transactions([tx2])
+    b.models.store_bulk_transactions([tx2])
 
     tx3 = Transfer.generate([inputs[1]], [([bob.public_key], 2)], [tx1.id]).sign([user_sk])
 

tests/tendermint/test_utils.py

@@ -11,7 +11,7 @@ from hashlib import sha3_256
 
 
 def test_encode_decode_transaction(b):
-    from planetmint.tendermint_utils import encode_transaction, decode_transaction
+    from planetmint.abci.tendermint_utils import encode_transaction, decode_transaction
 
     asset = {"value": "key"}
 
@@ -25,7 +25,7 @@ def test_encode_decode_transaction(b):
 
 
 def test_calculate_hash_no_key(b):
-    from planetmint.tendermint_utils import calculate_hash
+    from planetmint.abci.tendermint_utils import calculate_hash
 
     # pass an empty list
     assert calculate_hash([]) == ""
@@ -33,7 +33,7 @@ def test_calculate_hash_no_key(b):
 
 # TODO test for the case of an empty list of hashes, and possibly other cases.
 def test_merkleroot():
-    from planetmint.tendermint_utils import merkleroot
+    from planetmint.abci.tendermint_utils import merkleroot
 
     hashes = [sha3_256(i.encode()).digest() for i in "abc"]
     assert merkleroot(hashes) == ("78c7c394d3158c218916b7ae0ebdea502e0f4e85c08e3b371e3dfd824d389fa3")
@@ -49,14 +49,14 @@ SAMPLE_PUBLIC_KEY = {
     reason="ripemd160, the core of pulbic_key64_to_address is no longer supported by hashlib (from python 3.9.13 on)"
 )
 def test_convert_base64_public_key_to_address():
-    from planetmint.tendermint_utils import public_key64_to_address
+    from planetmint.abci.tendermint_utils import public_key64_to_address
 
     address = public_key64_to_address(SAMPLE_PUBLIC_KEY["pub_key"]["value"])
     assert address == SAMPLE_PUBLIC_KEY["address"]
 
 
 def test_public_key_encoding_decoding():
-    from planetmint.tendermint_utils import public_key_from_base64, public_key_to_base64
+    from planetmint.abci.tendermint_utils import public_key_from_base64, public_key_to_base64
 
     public_key = public_key_from_base64(SAMPLE_PUBLIC_KEY["pub_key"]["value"])
     base64_public_key = public_key_to_base64(public_key)

tests/test_core.py

@@ -5,7 +5,6 @@
 
 import pytest
 
-from planetmint.version import __tm_supported_versions__
 from transactions.types.assets.create import Create
 from transactions.types.assets.transfer import Transfer
 
@@ -39,13 +38,13 @@ def config(request, monkeypatch):
 
 
 def test_bigchain_class_default_initialization(config):
-    from planetmint import Planetmint
-    from planetmint.validation import BaseValidationRules
+    from planetmint.application import Validator
+    from planetmint.application.basevalidationrules import BaseValidationRules
 
-    planet = Planetmint()
-    assert planet.connection.host == config["database"]["host"]
-    assert planet.connection.port == config["database"]["port"]
-    assert planet.validation == BaseValidationRules
+    validator = Validator()
+    assert validator.models.connection.host == config["database"]["host"]
+    assert validator.models.connection.port == config["database"]["port"]
+    assert validator.validation == BaseValidationRules
 
 
 @pytest.mark.bdb
@@ -55,7 +54,7 @@ def test_get_spent_issue_1271(b, alice, bob, carol):
         [([carol.public_key], 8)],
     ).sign([carol.private_key])
     assert b.validate_transaction(tx_1)
-    b.store_bulk_transactions([tx_1])
+    b.models.store_bulk_transactions([tx_1])
 
     tx_2 = Transfer.generate(
         tx_1.to_inputs(),
@@ -63,7 +62,7 @@ def test_get_spent_issue_1271(b, alice, bob, carol):
         asset_ids=[tx_1.id],
     ).sign([carol.private_key])
     assert b.validate_transaction(tx_2)
-    b.store_bulk_transactions([tx_2])
+    b.models.store_bulk_transactions([tx_2])
 
     tx_3 = Transfer.generate(
         tx_2.to_inputs()[2:3],
@@ -71,7 +70,7 @@ def test_get_spent_issue_1271(b, alice, bob, carol):
         asset_ids=[tx_1.id],
     ).sign([carol.private_key])
     assert b.validate_transaction(tx_3)
-    b.store_bulk_transactions([tx_3])
+    b.models.store_bulk_transactions([tx_3])
 
     tx_4 = Transfer.generate(
         tx_2.to_inputs()[1:2] + tx_3.to_inputs()[0:1],
@@ -79,7 +78,7 @@ def test_get_spent_issue_1271(b, alice, bob, carol):
         asset_ids=[tx_1.id],
     ).sign([alice.private_key])
     assert b.validate_transaction(tx_4)
-    b.store_bulk_transactions([tx_4])
+    b.models.store_bulk_transactions([tx_4])
 
     tx_5 = Transfer.generate(
         tx_2.to_inputs()[0:1],
@@ -88,8 +87,8 @@ def test_get_spent_issue_1271(b, alice, bob, carol):
     ).sign([bob.private_key])
     assert b.validate_transaction(tx_5)
 
-    b.store_bulk_transactions([tx_5])
-    assert b.get_spent(tx_2.id, 0) == tx_5.to_dict()
-    assert not b.get_spent(tx_5.id, 0)
-    assert b.get_outputs_filtered(alice.public_key)
-    assert b.get_outputs_filtered(alice.public_key, spent=False)
+    b.models.store_bulk_transactions([tx_5])
+    assert b.models.get_spent(tx_2.id, 0) == tx_5.to_dict()
+    assert not b.models.get_spent(tx_5.id, 0)
+    assert b.models.get_outputs_filtered(alice.public_key)
+    assert b.models.get_outputs_filtered(alice.public_key, spent=False)

tests/test_events.py

@@ -5,10 +5,11 @@
 
 import pytest
 
+from planetmint.ipc.events import EventTypes, Event, POISON_PILL
+from planetmint.ipc.exchange import Exchange
+
 
 def test_event_handler():
-    from planetmint.events import EventTypes, Event, Exchange
-
     # create and event
     event_data = {"msg": "some data"}
     event = Event(EventTypes.BLOCK_VALID, event_data)
@@ -43,8 +44,6 @@ def test_event_handler():
 
 
 def test_event_handler_raises_when_called_after_start():
-    from planetmint.events import Exchange, POISON_PILL
-
     exchange = Exchange()
     publisher_queue = exchange.get_publisher_queue()
     publisher_queue.put(POISON_PILL)
@@ -55,8 +54,6 @@ def test_event_handler_raises_when_called_after_start():
 
 
 def test_exchange_stops_with_poison_pill():
-    from planetmint.events import EventTypes, Event, Exchange, POISON_PILL
-
     # create and event
     event_data = {"msg": "some data"}
     event = Event(EventTypes.BLOCK_VALID, event_data)

tests/test_parallel_validation.py

@@ -25,7 +25,7 @@ def generate_create_and_transfer(keypair=None):
 
 def test_validation_worker_process_multiple_transactions(b):
     import multiprocessing as mp
-    from planetmint.parallel_validation import ValidationWorker, RESET, EXIT
+    from planetmint.abci.parallel_validation import ValidationWorker, RESET, EXIT
 
     keypair = generate_key_pair()
     create_tx, transfer_tx = generate_create_and_transfer(keypair)
@@ -73,7 +73,7 @@ def test_parallel_validator_routes_transactions_correctly(b, monkeypatch):
     from collections import defaultdict
     import multiprocessing as mp
     from json import dumps
-    from planetmint.parallel_validation import ParallelValidator
+    from planetmint.abci.parallel_validation import ParallelValidator
 
     # We want to make sure that the load is distributed across all workers.
     # Since introspection on an object running on a different process is
@@ -87,7 +87,7 @@ def test_parallel_validator_routes_transactions_correctly(b, monkeypatch):
         validation_called_by.put((os.getpid(), dict_transaction["id"]))
         return dict_transaction
 
-    monkeypatch.setattr("planetmint.parallel_validation.ValidationWorker.validate", validate)
+    monkeypatch.setattr("planetmint.abci.parallel_validation.ValidationWorker.validate", validate)
 
     # Transaction routing uses the `id` of the transaction. This test strips
     # down a transaction to just its `id`. We have two workers, so even ids

tests/test_txlist.py

@@ -23,7 +23,7 @@ def txlist(b, user_pk, user2_pk, user_sk, user2_sk):
     # Create a TRANSFER transactions
     transfer1 = Transfer.generate(create1.to_inputs(), [([user_pk], 8)], [create1.id]).sign([user2_sk])
 
-    b.store_bulk_transactions([create1, create2, transfer1])
+    b.models.store_bulk_transactions([create1, create2, transfer1])
 
     return type(
         "",
@@ -37,11 +37,11 @@ def txlist(b, user_pk, user2_pk, user_sk, user2_sk):
 
 @pytest.mark.bdb
 def test_get_txlist_by_asset(b, txlist):
-    res = b.get_transactions_filtered([txlist.create1.id])
+    res = b.models.get_transactions_filtered([txlist.create1.id])
     assert sorted(set(tx.id for tx in res)) == sorted(set([txlist.transfer1.id, txlist.create1.id]))
 
 
 @pytest.mark.bdb
 def test_get_txlist_by_operation(b, txlist):
-    res = b.get_transactions_filtered([txlist.create1.id], operation="CREATE")
+    res = b.models.get_transactions_filtered([txlist.create1.id], operation="CREATE")
     assert set(tx.id for tx in res) == {txlist.create1.id}

tests/test_utils.py

@@ -118,7 +118,7 @@ def test_pool_raises_empty_exception_when_timeout(mock_queue):
 
 @patch("multiprocessing.Process")
 def test_process_group_instantiates_and_start_processes(mock_process):
-    from planetmint.utils import ProcessGroup
+    from tests.utils import ProcessGroup
 
     def noop():
         pass

tests/upsert_validator/conftest.py

@@ -25,15 +25,15 @@ def fixed_seed_election(b_mock, node_key, new_validator):
 
 @pytest.fixture
 def concluded_election(b, ongoing_validator_election, ed25519_node_keys):
-    query.store_election(b.connection, ongoing_validator_election.id, 2, is_concluded=True)
+    query.store_election(b.models.connection, ongoing_validator_election.id, 2, is_concluded=True)
     return ongoing_validator_election
 
 
 @pytest.fixture
 def inconclusive_election(b, ongoing_validator_election, new_validator):
-    validators = b.get_validators(height=1)
+    validators = b.models.get_validators(height=1)
     validators[0]["voting_power"] = 15
     validator_update = {"validators": validators, "height": 2, "election_id": "some_other_election"}
 
-    query.store_validator_set(b.connection, validator_update)
+    query.store_validator_set(b.models.connection, validator_update)
     return ongoing_validator_election

tests/upsert_validator/test_upsert_validator_vote.py

@@ -6,7 +6,8 @@
 import pytest
 import codecs
 
-from planetmint.tendermint_utils import public_key_to_base64
+from planetmint.abci.rpc import MODE_LIST, MODE_COMMIT
+from planetmint.abci.tendermint_utils import public_key_to_base64
 
 from transactions.types.elections.validator_election import ValidatorElection
 from transactions.common.exceptions import AmountError
@@ -15,6 +16,7 @@ from transactions.common.exceptions import ValidationError
 from transactions.common.transaction_mode_types import BROADCAST_TX_COMMIT
 from transactions.types.elections.vote import Vote
 from transactions.types.elections.validator_utils import election_id_to_public_key
+
 from tests.utils import generate_block, gen_vote
 
 pytestmark = [pytest.mark.execute]
@@ -22,7 +24,7 @@ pytestmark = [pytest.mark.execute]
 
 @pytest.mark.bdb
 def test_upsert_validator_valid_election_vote(b_mock, valid_upsert_validator_election, ed25519_node_keys):
-    b_mock.store_bulk_transactions([valid_upsert_validator_election])
+    b_mock.models.store_bulk_transactions([valid_upsert_validator_election])
 
     input0 = valid_upsert_validator_election.to_inputs()[0]
     votes = valid_upsert_validator_election.outputs[0].amount
@@ -39,7 +41,7 @@ def test_upsert_validator_valid_election_vote(b_mock, valid_upsert_validator_ele
 
 @pytest.mark.bdb
 def test_upsert_validator_valid_non_election_vote(b_mock, valid_upsert_validator_election, ed25519_node_keys):
-    b_mock.store_bulk_transactions([valid_upsert_validator_election])
+    b_mock.models.store_bulk_transactions([valid_upsert_validator_election])
 
     input0 = valid_upsert_validator_election.to_inputs()[0]
     votes = valid_upsert_validator_election.outputs[0].amount
@@ -59,7 +61,7 @@ def test_upsert_validator_valid_non_election_vote(b_mock, valid_upsert_validator
 def test_upsert_validator_delegate_election_vote(b_mock, valid_upsert_validator_election, ed25519_node_keys):
     alice = generate_key_pair()
 
-    b_mock.store_bulk_transactions([valid_upsert_validator_election])
+    b_mock.models.store_bulk_transactions([valid_upsert_validator_election])
 
     input0 = valid_upsert_validator_election.to_inputs()[0]
     votes = valid_upsert_validator_election.outputs[0].amount
@@ -74,7 +76,7 @@ def test_upsert_validator_delegate_election_vote(b_mock, valid_upsert_validator_
 
     assert b_mock.validate_transaction(delegate_vote)
 
-    b_mock.store_bulk_transactions([delegate_vote])
+    b_mock.models.store_bulk_transactions([delegate_vote])
     election_pub_key = election_id_to_public_key(valid_upsert_validator_election.id)
 
     alice_votes = delegate_vote.to_inputs()[0]
@@ -92,7 +94,7 @@ def test_upsert_validator_delegate_election_vote(b_mock, valid_upsert_validator_
 
 @pytest.mark.bdb
 def test_upsert_validator_invalid_election_vote(b_mock, valid_upsert_validator_election, ed25519_node_keys):
-    b_mock.store_bulk_transactions([valid_upsert_validator_election])
+    b_mock.models.store_bulk_transactions([valid_upsert_validator_election])
 
     input0 = valid_upsert_validator_election.to_inputs()[0]
     votes = valid_upsert_validator_election.outputs[0].amount
@@ -112,7 +114,7 @@ def test_upsert_validator_invalid_election_vote(b_mock, valid_upsert_validator_e
 @pytest.mark.bdb
 def test_valid_election_votes_received(b_mock, valid_upsert_validator_election, ed25519_node_keys):
     alice = generate_key_pair()
-    b_mock.store_bulk_transactions([valid_upsert_validator_election])
+    b_mock.models.store_bulk_transactions([valid_upsert_validator_election])
     assert b_mock.get_commited_votes(valid_upsert_validator_election) == 0
 
     input0 = valid_upsert_validator_election.to_inputs()[0]
@@ -126,7 +128,7 @@ def test_valid_election_votes_received(b_mock, valid_upsert_validator_election,
         [([alice.public_key], 4), ([key0.public_key], votes - 4)],
         election_ids=[valid_upsert_validator_election.id],
     ).sign([key0.private_key])
-    b_mock.store_bulk_transactions([delegate_vote])
+    b_mock.models.store_bulk_transactions([delegate_vote])
     assert b_mock.get_commited_votes(valid_upsert_validator_election) == 0
 
     election_public_key = election_id_to_public_key(valid_upsert_validator_election.id)
@@ -140,7 +142,7 @@ def test_valid_election_votes_received(b_mock, valid_upsert_validator_election,
     ).sign([alice.private_key])
 
     assert b_mock.validate_transaction(alice_casted_vote)
-    b_mock.store_bulk_transactions([alice_casted_vote])
+    b_mock.models.store_bulk_transactions([alice_casted_vote])
 
     # Check if the delegated vote is count as valid vote
     assert b_mock.get_commited_votes(valid_upsert_validator_election) == 2
@@ -150,7 +152,7 @@ def test_valid_election_votes_received(b_mock, valid_upsert_validator_election,
     ).sign([key0.private_key])
 
     assert b_mock.validate_transaction(key0_casted_vote)
-    b_mock.store_bulk_transactions([key0_casted_vote])
+    b_mock.models.store_bulk_transactions([key0_casted_vote])
     assert b_mock.get_commited_votes(valid_upsert_validator_election) == votes - 2
 
 
@@ -164,7 +166,7 @@ def test_valid_election_conclude(b_mock, valid_upsert_validator_election, ed2551
         assert b_mock.validate_transaction(tx_vote0)
 
     # store election
-    b_mock.store_bulk_transactions([valid_upsert_validator_election])
+    b_mock.models.store_bulk_transactions([valid_upsert_validator_election])
     # cannot conclude election as not votes exist
     assert not b_mock.has_election_concluded(valid_upsert_validator_election)
 
@@ -172,7 +174,7 @@ def test_valid_election_conclude(b_mock, valid_upsert_validator_election, ed2551
     assert b_mock.validate_transaction(tx_vote0)
     assert not b_mock.has_election_concluded(valid_upsert_validator_election, [tx_vote0])
 
-    b_mock.store_bulk_transactions([tx_vote0])
+    b_mock.models.store_bulk_transactions([tx_vote0])
     assert not b_mock.has_election_concluded(valid_upsert_validator_election)
 
     # Node 1: cast vote
@@ -190,7 +192,7 @@ def test_valid_election_conclude(b_mock, valid_upsert_validator_election, ed2551
     # 2/3 is achieved in the same block so the election can be.has_concludedd
     assert b_mock.has_election_concluded(valid_upsert_validator_election, [tx_vote1, tx_vote2])
 
-    b_mock.store_bulk_transactions([tx_vote1])
+    b_mock.models.store_bulk_transactions([tx_vote1])
     assert not b_mock.has_election_concluded(valid_upsert_validator_election)
 
     assert b_mock.validate_transaction(tx_vote2)
@@ -200,7 +202,7 @@ def test_valid_election_conclude(b_mock, valid_upsert_validator_election, ed2551
     assert b_mock.has_election_concluded(valid_upsert_validator_election, [tx_vote2])
     assert b_mock.has_election_concluded(valid_upsert_validator_election, [tx_vote2, tx_vote3])
 
-    b_mock.store_bulk_transactions([tx_vote2])
+    b_mock.models.store_bulk_transactions([tx_vote2])
 
     # Once the blockchain records >2/3 of the votes the election is assumed to be.has_concludedd
     # so any invocation of `.has_concluded` for that election should return False
@@ -213,18 +215,18 @@ def test_valid_election_conclude(b_mock, valid_upsert_validator_election, ed2551
 
 
 @pytest.mark.abci
-def test_upsert_validator(b, node_key, node_keys, ed25519_node_keys):
-    if b.get_latest_block()["height"] == 0:
-        generate_block(b)
+def test_upsert_validator(b, node_key, node_keys, ed25519_node_keys, test_abci_rpc):
+    if b.models.get_latest_block()["height"] == 0:
+        generate_block(b, test_abci_rpc)
 
     (node_pub, _) = list(node_keys.items())[0]
 
     validators = [{"public_key": {"type": "ed25519-base64", "value": node_pub}, "voting_power": 10}]
 
-    latest_block = b.get_latest_block()
+    latest_block = b.models.get_latest_block()
     # reset the validator set
-    b.store_validator_set(latest_block["height"], validators)
-    generate_block(b)
+    b.models.store_validator_set(latest_block["height"], validators)
+    generate_block(b, test_abci_rpc)
 
     power = 1
     public_key = "9B3119650DF82B9A5D8A12E38953EA47475C09F0C48A4E6A0ECE182944B24403"
@@ -243,22 +245,26 @@ def test_upsert_validator(b, node_key, node_keys, ed25519_node_keys):
     election = ValidatorElection.generate([node_key.public_key], voters, new_validator, None).sign(
         [node_key.private_key]
     )
-    code, message = b.write_transaction(election, BROADCAST_TX_COMMIT)
+    code, message = test_abci_rpc.write_transaction(
+        MODE_LIST, test_abci_rpc.tendermint_rpc_endpoint, MODE_COMMIT, election, BROADCAST_TX_COMMIT
+    )
     assert code == 202
-    assert b.get_transaction(election.id)
+    assert b.models.get_transaction(election.id)
 
     tx_vote = gen_vote(election, 0, ed25519_node_keys)
     assert b.validate_transaction(tx_vote)
-    code, message = b.write_transaction(tx_vote, BROADCAST_TX_COMMIT)
+    code, message = test_abci_rpc.write_transaction(
+        MODE_LIST, test_abci_rpc.tendermint_rpc_endpoint, MODE_COMMIT, tx_vote, BROADCAST_TX_COMMIT
+    )
     assert code == 202
 
-    resp = b.get_validators()
+    resp = b.models.get_validators()
     validator_pub_keys = []
     for v in resp:
         validator_pub_keys.append(v["public_key"]["value"])
 
     assert public_key64 in validator_pub_keys
-    new_validator_set = b.get_validators()
+    new_validator_set = b.models.get_validators()
     validator_pub_keys = []
     for v in new_validator_set:
         validator_pub_keys.append(v["public_key"]["value"])
@@ -285,7 +291,7 @@ def test_get_validator_update(b, node_keys, node_key, ed25519_node_keys):
     voters = b.get_recipients_list()
     election = ValidatorElection.generate([node_key.public_key], voters, new_validator).sign([node_key.private_key])
     # store election
-    b.store_bulk_transactions([election])
+    b.models.store_bulk_transactions([election])
 
     tx_vote0 = gen_vote(election, 0, ed25519_node_keys)
     tx_vote1 = gen_vote(election, 1, ed25519_node_keys)
@@ -317,13 +323,13 @@ def test_get_validator_update(b, node_keys, node_key, ed25519_node_keys):
     voters = b.get_recipients_list()
     election = ValidatorElection.generate([node_key.public_key], voters, new_validator).sign([node_key.private_key])
     # store election
-    b.store_bulk_transactions([election])
+    b.models.store_bulk_transactions([election])
 
     tx_vote0 = gen_vote(election, 0, ed25519_node_keys)
     tx_vote1 = gen_vote(election, 1, ed25519_node_keys)
     tx_vote2 = gen_vote(election, 2, ed25519_node_keys)
 
-    b.store_bulk_transactions([tx_vote0, tx_vote1])
+    b.models.store_bulk_transactions([tx_vote0, tx_vote1])
 
     update = b.process_block(9, [tx_vote2])
     assert len(update) == 1
@@ -331,7 +337,7 @@ def test_get_validator_update(b, node_keys, node_key, ed25519_node_keys):
     assert update_public_key == public_key64
 
     # assert that the public key is not a part of the current validator set
-    for v in b.get_validators(10):
+    for v in b.models.get_validators(10):
         assert not v["public_key"]["value"] == public_key64
 
 
@@ -344,4 +350,4 @@ def reset_validator_set(b, node_keys, height):
     validators = []
     for node_pub, _ in node_keys.items():
         validators.append({"public_key": {"type": "ed25519-base64", "value": node_pub}, "voting_power": 10})
-    b.store_validator_set(height, validators)
+    b.models.store_validator_set(height, validators)

tests/upsert_validator/test_validator_election.py

@@ -7,7 +7,7 @@ import pytest
 
 from argparse import Namespace
 from unittest.mock import patch
-from planetmint.tendermint_utils import public_key_to_base64
+from planetmint.abci.tendermint_utils import public_key_to_base64
 from transactions.types.elections.validator_election import ValidatorElection
 from transactions.common.exceptions import (
     DuplicateTransaction,
@@ -17,6 +17,7 @@ from transactions.common.exceptions import (
     InvalidPowerChange,
 )
 
+
 pytestmark = pytest.mark.bdb
 
 
@@ -82,7 +83,7 @@ def test_upsert_validator_invalid_election(b_mock, new_validator, node_key, fixe
     with pytest.raises(DuplicateTransaction):
         b_mock.validate_election(fixed_seed_election, [duplicate_election])
 
-    b_mock.store_bulk_transactions([fixed_seed_election])
+    b_mock.models.store_bulk_transactions([fixed_seed_election])
 
     with pytest.raises(DuplicateTransaction):
         b_mock.validate_election(duplicate_election)
@@ -166,8 +167,8 @@ def test_get_status_inconclusive(b, inconclusive_election, new_validator):
                 },
             ]
 
-    b.get_validators = custom_mock_get_validators
-    b.get_latest_block = set_block_height_to_3
+    b.models.get_validators = custom_mock_get_validators
+    b.models.get_latest_block = set_block_height_to_3
     status = ValidatorElection.INCONCLUSIVE
     resp = b.get_election_status(inconclusive_election)
     assert resp == status

tests/utils.py

@@ -2,12 +2,16 @@
 # Planetmint and IPDB software contributors.
 # SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
 # Code is Apache-2.0 and docs are CC-BY-4.0
+import multiprocessing
+from hashlib import sha3_256
 
 import base58
 import base64
 import random
 
 from functools import singledispatch
+
+from planetmint import backend
 from planetmint.backend.localmongodb.connection import LocalMongoDBConnection
 from planetmint.backend.tarantool.connection import TarantoolDBConnection
 from planetmint.backend.schema import TABLES
@@ -16,7 +20,8 @@ from transactions.common.transaction_mode_types import BROADCAST_TX_COMMIT
 from transactions.types.assets.create import Create
 from transactions.types.elections.vote import Vote
 from transactions.types.elections.validator_utils import election_id_to_public_key
-from planetmint.tendermint_utils import key_to_base64
+from planetmint.abci.tendermint_utils import key_to_base64, merkleroot
+from planetmint.abci.rpc import MODE_COMMIT, MODE_LIST
 
 
 @singledispatch
@@ -36,7 +41,7 @@ def flush_tarantool_db(connection, dbname):
     connection.connect().call("init")
 
 
-def generate_block(planet):
+def generate_block(planet, test_abci_rpc):
     from transactions.common.crypto import generate_key_pair
 
     alice = generate_key_pair()
@@ -44,7 +49,9 @@ def generate_block(planet):
         [alice.private_key]
     )
 
-    code, message = planet.write_transaction(tx, BROADCAST_TX_COMMIT)
+    code, message = test_abci_rpc.write_transaction(
+        MODE_LIST, test_abci_rpc.tendermint_rpc_endpoint, MODE_COMMIT, tx, BROADCAST_TX_COMMIT
+    )
     assert code == 202
 
 
@@ -118,3 +125,100 @@ def generate_election(b, cls, public_key, private_key, asset_data, voter_keys):
         v.sign([key])
 
     return election, votes
+
+
+def delete_unspent_outputs(connection, *unspent_outputs):
+    """Deletes the given ``unspent_outputs`` (utxos).
+
+    Args:
+        *unspent_outputs (:obj:`tuple` of :obj:`dict`): Variable
+            length tuple or list of unspent outputs.
+    """
+    if unspent_outputs:
+        return backend.query.delete_unspent_outputs(connection, *unspent_outputs)
+
+
+def get_utxoset_merkle_root(connection):
+    """Returns the merkle root of the utxoset. This implies that
+    the utxoset is first put into a merkle tree.
+
+    For now, the merkle tree and its root will be computed each
+    time. This obviously is not efficient and a better approach
+    that limits the repetition of the same computation when
+    unnecesary should be sought. For instance, future optimizations
+    could simply re-compute the branches of the tree that were
+    affected by a change.
+
+    The transaction hash (id) and output index should be sufficient
+    to uniquely identify a utxo, and consequently only that
+    information from a utxo record is needed to compute the merkle
+    root. Hence, each node of the merkle tree should contain the
+    tuple (txid, output_index).
+
+    .. important:: The leaves of the tree will need to be sorted in
+        some kind of lexicographical order.
+
+    Returns:
+        str: Merkle root in hexadecimal form.
+    """
+    utxoset = backend.query.get_unspent_outputs(connection)
+    # TODO Once ready, use the already pre-computed utxo_hash field.
+    # See common/transactions.py for details.
+    hashes = [
+        sha3_256("{}{}".format(utxo["transaction_id"], utxo["output_index"]).encode()).digest() for utxo in utxoset
+    ]
+    # TODO Notice the sorted call!
+    return merkleroot(sorted(hashes))
+
+
+def store_unspent_outputs(connection, *unspent_outputs):
+    """Store the given ``unspent_outputs`` (utxos).
+
+    Args:
+        *unspent_outputs (:obj:`tuple` of :obj:`dict`): Variable
+            length tuple or list of unspent outputs.
+    """
+    if unspent_outputs:
+        return backend.query.store_unspent_outputs(connection, *unspent_outputs)
+
+
+def update_utxoset(connection, transaction):
+    """
+    Update the UTXO set given ``transaction``. That is, remove
+    the outputs that the given ``transaction`` spends, and add the
+    outputs that the given ``transaction`` creates.
+
+    Args:
+        transaction (:obj:`~planetmint.models.Transaction`): A new
+            transaction incoming into the system for which the UTXOF
+            set needs to be updated.
+    """
+    spent_outputs = [spent_output for spent_output in transaction.spent_outputs]
+    if spent_outputs:
+        delete_unspent_outputs(connection, *spent_outputs)
+    store_unspent_outputs(connection, *[utxo._asdict() for utxo in transaction.unspent_outputs])
+
+
+class ProcessGroup(object):
+    def __init__(self, concurrency=None, group=None, target=None, name=None, args=None, kwargs=None, daemon=None):
+        self.concurrency = concurrency or multiprocessing.cpu_count()
+        self.group = group
+        self.target = target
+        self.name = name
+        self.args = args or ()
+        self.kwargs = kwargs or {}
+        self.daemon = daemon
+        self.processes = []
+
+    def start(self):
+        for i in range(self.concurrency):
+            proc = multiprocessing.Process(
+                group=self.group,
+                target=self.target,
+                name=self.name,
+                args=self.args,
+                kwargs=self.kwargs,
+                daemon=self.daemon,
+            )
+            proc.start()
+            self.processes.append(proc)

tests/web/conftest.py

@@ -9,10 +9,10 @@ import pytest
 @pytest.fixture
 def app(request):
     from planetmint.web import server
-    from planetmint.lib import Planetmint
+    from planetmint.application import Validator
 
     if request.config.getoption("--database-backend") == "localmongodb":
-        app = server.create_app(debug=True, planetmint_factory=Planetmint)
+        app = server.create_app(debug=True, planetmint_factory=Validator)
     else:
         app = server.create_app(debug=True)
 

tests/web/test_assets.py

@@ -8,6 +8,7 @@ import pytest
 from transactions.types.assets.create import Create
 from ipld import marshal, multihash
 
+
 ASSETS_ENDPOINT = "/api/v1/assets/"
 
 
@@ -17,7 +18,7 @@ def test_get_assets_tendermint(client, b, alice):
     assets = [{"data": multihash(marshal({"msg": "abc"}))}]
     tx = Create.generate([alice.public_key], [([alice.public_key], 1)], assets=assets).sign([alice.private_key])
 
-    b.store_bulk_transactions([tx])
+    b.models.store_bulk_transactions([tx])
 
     res = client.get(ASSETS_ENDPOINT + assets[0]["data"])
     assert res.status_code == 200
@@ -32,7 +33,7 @@ def test_get_assets_tendermint_limit(client, b, alice, bob):
     tx_1 = Create.generate([alice.public_key], [([alice.public_key], 1)], assets=assets).sign([alice.private_key])
     tx_2 = Create.generate([bob.public_key], [([bob.public_key], 1)], assets=assets).sign([bob.private_key])
 
-    b.store_bulk_transactions([tx_1, tx_2])
+    b.models.store_bulk_transactions([tx_1, tx_2])
 
     res = client.get(ASSETS_ENDPOINT + assets[0]["data"] + "?limit=1")
     assert res.status_code == 200

tests/web/test_block_tendermint.py

@@ -6,9 +6,10 @@
 import pytest
 
 from transactions.types.assets.create import Create
-from planetmint.lib import Block
+from planetmint.abci.block import Block
 from ipld import marshal, multihash
 
+
 BLOCKS_ENDPOINT = "/api/v1/blocks/"
 
 
@@ -22,15 +23,15 @@ def test_get_block_endpoint(b, client, alice):
     )
     tx = tx.sign([alice.private_key])
 
-    # with store_bulk_transactions we use `insert_many` where PyMongo
+    # with b.models.store_bulk_transactions we use `insert_many` where PyMongo
     # automatically adds an `_id` field to the tx, therefore we need the
     # deepcopy, for more info see:
     # https://api.mongodb.com/python/current/faq.html#writes-and-ids
     tx_dict = copy.deepcopy(tx.to_dict())
-    b.store_bulk_transactions([tx])
+    b.models.store_bulk_transactions([tx])
 
     block = Block(app_hash="random_utxo", height=31, transactions=[tx.id])
-    b.store_block(block._asdict())
+    b.models.store_block(block._asdict())
 
     res = client.get(BLOCKS_ENDPOINT + str(block.height))
     expected_response = {"app_hash": "random_utxo", "height": block.height, "transaction_ids": [tx.id]}
@@ -54,10 +55,10 @@ def test_get_block_containing_transaction(b, client, alice):
         [alice.public_key], [([alice.public_key], 1)], assets=[{"data": multihash(marshal({"cycle": "hero"}))}]
     )
     tx = tx.sign([alice.private_key])
-    b.store_bulk_transactions([tx])
+    b.models.store_bulk_transactions([tx])
 
     block = Block(app_hash="random_utxo", height=13, transactions=[tx.id])
-    b.store_block(block._asdict())
+    b.models.store_block(block._asdict())
     res = client.get("{}?transaction_id={}".format(BLOCKS_ENDPOINT, tx.id))
     expected_height = block.height
     assert res.json["height"] == expected_height

tests/web/test_metadata.py

@@ -8,6 +8,7 @@ import pytest
 from transactions.types.assets.create import Create
 from ipld import marshal, multihash
 
+
 METADATA_ENDPOINT = "/api/v1/metadata/"
 
 
@@ -26,7 +27,7 @@ def test_get_metadata_tendermint(client, b, alice):
         [alice.private_key]
     )
 
-    b.store_bulk_transactions([tx])
+    b.models.store_bulk_transactions([tx])
 
     # test that metadata is returned
     res = client.get(METADATA_ENDPOINT + metadata)
@@ -43,13 +44,13 @@ def test_get_metadata_limit_tendermint(client, b, alice):
     tx1 = Create.generate([alice.public_key], [([alice.public_key], 1)], metadata=meta, assets=assets1).sign(
         [alice.private_key]
     )
-    b.store_bulk_transactions([tx1])
+    b.models.store_bulk_transactions([tx1])
 
     assets2 = [{"data": multihash(marshal({"msg": "abc 2"}))}]
     tx2 = Create.generate([alice.public_key], [([alice.public_key], 1)], metadata=meta, assets=assets2).sign(
         [alice.private_key]
     )
-    b.store_bulk_transactions([tx2])
+    b.models.store_bulk_transactions([tx2])
 
     # test that both assets are returned without limit
     res = client.get(METADATA_ENDPOINT + meta)

tests/web/test_outputs.py

@@ -9,7 +9,6 @@ from transactions.types.assets.create import Create
 from transactions.types.assets.transfer import Transfer
 from unittest.mock import MagicMock, patch
 
-
 OUTPUTS_ENDPOINT = "/api/v1/outputs/"
 
 
@@ -19,7 +18,7 @@ def test_get_outputs_endpoint(client, user_pk):
     m = MagicMock()
     m.txid = "a"
     m.output = 0
-    with patch("planetmint.Planetmint.get_outputs_filtered") as gof:
+    with patch("planetmint.model.models.Models.get_outputs_filtered") as gof:
         gof.return_value = [m, m]
         res = client.get(OUTPUTS_ENDPOINT + "?public_key={}".format(user_pk))
         assert res.json == [{"transaction_id": "a", "output_index": 0}, {"transaction_id": "a", "output_index": 0}]
@@ -31,7 +30,7 @@ def test_get_outputs_endpoint_unspent(client, user_pk):
     m = MagicMock()
     m.txid = "a"
     m.output = 0
-    with patch("planetmint.Planetmint.get_outputs_filtered") as gof:
+    with patch("planetmint.model.models.Models.get_outputs_filtered") as gof:
         gof.return_value = [m]
         params = "?spent=False&public_key={}".format(user_pk)
         res = client.get(OUTPUTS_ENDPOINT + params)
@@ -46,7 +45,7 @@ def test_get_outputs_endpoint_spent(client, user_pk):
     m = MagicMock()
     m.txid = "a"
     m.output = 0
-    with patch("planetmint.Planetmint.get_outputs_filtered") as gof:
+    with patch("planetmint.model.models.Models.get_outputs_filtered") as gof:
         gof.return_value = [m]
         params = "?spent=true&public_key={}".format(user_pk)
         res = client.get(OUTPUTS_ENDPOINT + params)
@@ -92,7 +91,7 @@ def test_get_divisble_transactions_returns_500_phase_one(b, client):
     TX_ENDPOINT = "/api/v1/transactions"
 
     def mine(tx_list):
-        b.store_bulk_transactions(tx_list)
+        b.models.store_bulk_transactions(tx_list)
 
     alice_priv, alice_pub = crypto.generate_key_pair()
     # bob_priv, bob_pub = crypto.generate_key_pair()
@@ -119,7 +118,7 @@ def test_get_divisble_transactions_returns_500(b, client):
     TX_ENDPOINT = "/api/v1/transactions"
 
     def mine(tx_list):
-        b.store_bulk_transactions(tx_list)
+        b.models.store_bulk_transactions(tx_list)
 
     alice_priv, alice_pub = crypto.generate_key_pair()
     bob_priv, bob_pub = crypto.generate_key_pair()

tests/web/test_transactions.py

@@ -30,7 +30,6 @@ from transactions.common.transaction import (
 from transactions.common.utils import _fulfillment_from_details
 from transactions.common.crypto import generate_key_pair
 
-
 TX_ENDPOINT = "/api/v1/transactions/"
 
 
@@ -107,7 +106,7 @@ def test_post_create_transaction_endpoint(b, client):
 def test_post_create_transaction_with_language(b, client, nested, language, expected_status_code):
     from planetmint.backend.localmongodb.connection import LocalMongoDBConnection
 
-    if isinstance(b.connection, LocalMongoDBConnection):
+    if isinstance(b.models.connection, LocalMongoDBConnection):
         user_priv, user_pub = crypto.generate_key_pair()
         lang_obj = {"language": language}
 
@@ -148,7 +147,7 @@ def test_post_create_transaction_with_invalid_key(b, client, field, value, err_k
 
     user_priv, user_pub = crypto.generate_key_pair()
 
-    if isinstance(b.connection, LocalMongoDBConnection):
+    if isinstance(b.models.connection, LocalMongoDBConnection):
         if field == "asset":
             tx = Create.generate([user_pub], [([user_pub], 1)], assets=value)
         elif field == "metadata":
@@ -405,7 +404,7 @@ def test_transactions_get_list_good(client):
 
     asset_ids = ["1" * 64]
 
-    with patch("planetmint.Planetmint.get_transactions_filtered", get_txs_patched):
+    with patch("planetmint.model.models.Models.get_transactions_filtered", get_txs_patched):
         url = TX_ENDPOINT + "?asset_ids=" + ",".join(asset_ids)
         assert client.get(url).json == [
             ["asset_ids", asset_ids],
@@ -431,7 +430,7 @@ def test_transactions_get_list_bad(client):
         assert False
 
     with patch(
-        "planetmint.Planetmint.get_transactions_filtered",
+        "planetmint.model.models.Models.get_transactions_filtered",
         lambda *_, **__: should_not_be_called(),
     ):
         # Test asset id validated
@@ -487,7 +486,7 @@ def test_post_transaction_compose_valid_wo_abci(b, _bdb):
         assets=[{"data": "QmW5GVMW98D3mktSDfWHS8nX2UiCd8gP1uCiujnFX4yK97"}],
     ).sign([alice.private_key])
     validated = b.validate_transaction(tx)
-    b.store_bulk_transactions([validated])
+    b.models.store_bulk_transactions([validated])
 
     tx_obj = tx
     tx = tx.to_dict()
@@ -500,7 +499,7 @@ def test_post_transaction_compose_valid_wo_abci(b, _bdb):
     compose_dict = signed_compose_tx.to_dict()
     compose_obj = Transaction.from_dict(compose_dict)
     validated_compose = b.validate_transaction(compose_obj)
-    b.store_bulk_transactions([validated_compose])
+    b.models.store_bulk_transactions([validated_compose])
 
 
 @pytest.mark.abci

tests/web/test_validators.py

@@ -14,7 +14,7 @@ def test_get_validators_endpoint(b, client):
             "voting_power": 10,
         }
     ]
-    b.store_validator_set(23, validator_set)
+    b.models.store_validator_set(23, validator_set)
 
     res = client.get(VALIDATORS_ENDPOINT)
     assert is_validator(res.json[0])

tests/web/test_websocket_server.py

@@ -13,7 +13,7 @@ import pytest
 from transactions.types.assets.create import Create
 from transactions.types.assets.transfer import Transfer
 from transactions.common import crypto
-from planetmint import events
+from planetmint.ipc import events
 from planetmint.web.websocket_server import init_app, EVENTS_ENDPOINT, EVENTS_ENDPOINT_BLOCKS
 from ipld import multihash, marshal
 
@@ -195,7 +195,7 @@ async def test_websocket_transaction_event(aiohttp_client, event_loop):
 
 @pytest.mark.asyncio
 async def test_websocket_string_event(aiohttp_client, event_loop):
-    from planetmint.events import POISON_PILL
+    from planetmint.ipc.events import POISON_PILL
     from planetmint.web.websocket_server import init_app, EVENTS_ENDPOINT
 
     blk_source = asyncio.Queue(loop=event_loop)

tmdata/config.toml

@@ -1,18 +0,0 @@
-# This is a TOML config file.
-# For more information, see https://github.com/toml-lang/toml
-
-proxy_app = "tcp://planetmint:26658"
-moniker = "anonymous"
-fast_sync = true
-db_backend = "leveldb"
-log_level = "state:debug,*:error"
-
-[consensus]
-create_empty_blocks = false
-
-[rpc]
-laddr = "tcp://0.0.0.0:26657"
-
-[p2p]
-laddr = "tcp://0.0.0.0:26656"
-seeds = ""