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moved test_transaction_structure.py to planetmint/transactions
Signed-off-by: Lorenz Herzberger <lorenzherzberger@gmail.com>
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Lorenz Herzberger
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# Copyright © 2020 Interplanetary Database Association e.V.,
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# Planetmint and IPDB software contributors.
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# SPDX-License-Identifier: (Apache-2.0 AND CC-BY-4.0)
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# Code is Apache-2.0 and docs are CC-BY-4.0
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"""All tests of transaction structure. The concern here is that transaction
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structural / schematic issues are caught when reading a transaction
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(ie going from dict -> transaction).
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"""
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import json
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import pytest
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import hashlib as sha3
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from unittest.mock import MagicMock
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from transactions.common.exceptions import AmountError, SchemaValidationError, ThresholdTooDeep
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from transactions.common.transaction import Transaction
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from transactions.common.utils import _fulfillment_to_details, _fulfillment_from_details
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from ipld import marshal, multihash
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################################################################################
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# Helper functions
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def validate(tx):
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if isinstance(tx, Transaction):
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tx = tx.to_dict()
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Transaction.from_dict(tx, False)
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def validate_raises(tx, exc=SchemaValidationError):
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with pytest.raises(exc):
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validate(tx)
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# We should test that validation works when we expect it to
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def test_validation_passes(signed_create_tx):
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Transaction.from_dict(signed_create_tx.to_dict(), False)
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################################################################################
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# ID
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def test_tx_serialization_hash_function(signed_create_tx):
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tx = signed_create_tx.to_dict()
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tx["id"] = None
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payload = json.dumps(tx, skipkeys=False, sort_keys=True, separators=(",", ":"))
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assert sha3.sha3_256(payload.encode()).hexdigest() == signed_create_tx.id
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def test_tx_serialization_with_incorrect_hash(signed_create_tx):
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from transactions.common.exceptions import InvalidHash
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tx = signed_create_tx.to_dict()
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tx["id"] = "a" * 64
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with pytest.raises(InvalidHash):
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Transaction.validate_id(tx)
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def test_tx_serialization_with_no_hash(signed_create_tx):
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from transactions.common.exceptions import InvalidHash
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tx = signed_create_tx.to_dict()
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del tx["id"]
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with pytest.raises(InvalidHash):
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Transaction.from_dict(tx, False)
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################################################################################
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# Operation
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def test_validate_invalid_operation(b, create_tx, alice):
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create_tx.operation = "something invalid"
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signed_tx = create_tx.sign([alice.private_key])
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validate_raises(signed_tx)
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################################################################################
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# Metadata
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def test_validate_fails_metadata_empty_dict(b, create_tx, alice):
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create_tx.metadata = multihash(marshal({"a": 1}))
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signed_tx = create_tx.sign([alice.private_key])
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validate(signed_tx)
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create_tx._id = None
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create_tx.fulfillment = None
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create_tx.metadata = None
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signed_tx = create_tx.sign([alice.private_key])
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validate(signed_tx)
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create_tx._id = None
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create_tx.fulfillment = None
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create_tx.metadata = {}
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signed_tx = create_tx.sign([alice.private_key])
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validate_raises(signed_tx)
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################################################################################
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# Asset
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def test_transfer_asset_schema(user_sk, signed_transfer_tx):
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from transactions.common.transaction import Transaction
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tx = signed_transfer_tx.to_dict()
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validate(tx)
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tx["id"] = None
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tx["assets"][0]["data"] = {}
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tx = Transaction.from_dict(tx).sign([user_sk]).to_dict()
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validate_raises(tx)
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tx["id"] = None
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del tx["assets"][0]["data"]
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tx["assets"][0]["id"] = "b" * 63
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tx = Transaction.from_dict(tx).sign([user_sk]).to_dict()
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validate_raises(tx)
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def test_create_tx_no_asset_id(b, create_tx, alice):
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create_tx.assets[0]["id"] = "b" * 64
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signed_tx = create_tx.sign([alice.private_key])
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validate_raises(signed_tx)
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def test_create_tx_asset_type(b, create_tx, alice):
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create_tx.assets[0]["data"] = multihash(marshal({"a": ""}))
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signed_tx = create_tx.sign([alice.private_key])
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validate(signed_tx)
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# validate_raises(signed_tx)
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def test_create_tx_no_asset_data(b, create_tx, alice):
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tx_body = create_tx.to_dict()
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del tx_body["assets"][0]["data"]
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tx_serialized = json.dumps(tx_body, skipkeys=False, sort_keys=True, separators=(",", ":"))
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tx_body["id"] = sha3.sha3_256(tx_serialized.encode()).hexdigest()
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validate_raises(tx_body)
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################################################################################
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# Inputs
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def test_no_inputs(b, create_tx, alice):
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create_tx.inputs = []
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signed_tx = create_tx.sign([alice.private_key])
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validate_raises(signed_tx)
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def test_create_single_input(b, create_tx, alice):
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from transactions.common.transaction import Transaction
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tx = create_tx.to_dict()
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tx["inputs"] += tx["inputs"]
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tx = Transaction.from_dict(tx).sign([alice.private_key]).to_dict()
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validate_raises(tx)
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tx["id"] = None
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tx["inputs"] = []
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tx = Transaction.from_dict(tx).sign([alice.private_key]).to_dict()
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validate_raises(tx)
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def test_create_tx_no_fulfills(b, create_tx, alice):
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from transactions.common.transaction import Transaction
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tx = create_tx.to_dict()
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tx["inputs"][0]["fulfills"] = {"transaction_id": "a" * 64, "output_index": 0}
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tx = Transaction.from_dict(tx).sign([alice.private_key]).to_dict()
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validate_raises(tx)
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def test_transfer_has_inputs(user_sk, signed_transfer_tx, alice):
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signed_transfer_tx.inputs = []
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signed_transfer_tx._id = None
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signed_transfer_tx.sign([user_sk])
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validate_raises(signed_transfer_tx)
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################################################################################
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# Outputs
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def test_low_amounts(b, user_sk, create_tx, signed_transfer_tx, alice):
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for sk, tx in [(alice.private_key, create_tx), (user_sk, signed_transfer_tx)]:
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tx.outputs[0].amount = 0
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tx._id = None
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tx.sign([sk])
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validate_raises(tx, AmountError)
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tx.outputs[0].amount = -1
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tx._id = None
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tx.sign([sk])
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validate_raises(tx)
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def test_high_amounts(b, create_tx, alice):
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# Should raise a SchemaValidationError - don't want to allow ridiculously
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# large numbers to get converted to int
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create_tx.outputs[0].amount = 10**21
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create_tx.sign([alice.private_key])
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validate_raises(create_tx)
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# Should raise AmountError
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create_tx.outputs[0].amount = 9 * 10**18 + 1
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create_tx._id = None
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create_tx.sign([alice.private_key])
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validate_raises(create_tx, AmountError)
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# Should pass
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create_tx.outputs[0].amount -= 1
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create_tx._id = None
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create_tx.sign([alice.private_key])
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validate(create_tx)
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################################################################################
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# Conditions
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def test_handle_threshold_overflow():
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cond = {
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"type": "ed25519-sha-256",
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"public_key": "a" * 43,
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}
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for i in range(1000):
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cond = {
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"type": "threshold-sha-256",
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"threshold": 1,
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"subconditions": [cond],
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}
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with pytest.raises(ThresholdTooDeep):
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_fulfillment_from_details(cond)
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def test_unsupported_condition_type():
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from planetmint_cryptoconditions.exceptions import UnsupportedTypeError
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with pytest.raises(UnsupportedTypeError):
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_fulfillment_from_details({"type": "a"})
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with pytest.raises(UnsupportedTypeError):
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_fulfillment_to_details(MagicMock(type_name="a"))
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################################################################################
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# Version
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def test_validate_version(b, create_tx, alice):
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create_tx.version = "3.0"
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create_tx.sign([alice.private_key])
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validate(create_tx)
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create_tx.version = "0.10"
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create_tx._id = None
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create_tx.sign([alice.private_key])
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validate_raises(create_tx)
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create_tx.version = "110"
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create_tx._id = None
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create_tx.sign([alice.private_key])
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validate_raises(create_tx)
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