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* Problem: We need a way to synchronize a halt to block production to allow for upgrades across breaking changes. * Solution: Created `MigrationElection`. * Problem: Need documentation for `migration` elections. * Solution: Updated the docs. * Problem: `MigrationElection` needs 'new' CLI method. * Solution: Updated the definition of `election` to include the new `migration` type. * Problem: The way `end_block` checks for concluded elections assumes there is only one type of election (so we can't conclude an `upsert-validator` and a `chain-migration` at the same height). * Solution: Re-engineered the code in `Elections` to conclude multiple elections in the same block. If more than one election change the validator set, only one of them is applied. * Problem: Tendermint change to store validator changes at height h+2 will break `Election.get_status`. * Solution: Reworked `get_validator_change` to look at only the latest block height or less.
48 lines
1.7 KiB
Python
48 lines
1.7 KiB
Python
# Copyright BigchainDB GmbH and BigchainDB 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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from unittest.mock import patch
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import pytest
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from bigchaindb.backend.localmongodb import query
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from bigchaindb.upsert_validator import ValidatorElection
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@pytest.fixture
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def valid_upsert_validator_election_b(b, node_key, new_validator):
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voters = ValidatorElection.recipients(b)
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return ValidatorElection.generate([node_key.public_key],
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voters,
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new_validator, None).sign([node_key.private_key])
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@pytest.fixture
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@patch('bigchaindb.elections.election.uuid4', lambda: 'mock_uuid4')
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def fixed_seed_election(b_mock, node_key, new_validator):
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voters = ValidatorElection.recipients(b_mock)
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return ValidatorElection.generate([node_key.public_key],
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voters,
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new_validator, None).sign([node_key.private_key])
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@pytest.fixture
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def concluded_election(b, ongoing_validator_election, ed25519_node_keys):
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election_result = {'height': 2,
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'election_id': ongoing_validator_election.id}
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query.store_election_results(b.connection, election_result)
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return ongoing_validator_election
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@pytest.fixture
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def inconclusive_election(b, ongoing_validator_election, new_validator):
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validators = b.get_validators(height=1)
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validators[0]['voting_power'] = 15
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validator_update = {'validators': validators,
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'height': 2,
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'election_id': 'some_other_election'}
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query.store_validator_set(b.connection, validator_update)
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return ongoing_validator_election
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