491 lines
17 KiB
Python
491 lines
17 KiB
Python
# Copyright © 2020 Interplanetary Database Association e.V.,
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# BigchainDB 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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import os
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from unittest.mock import patch
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try:
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from hashlib import sha3_256
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except ImportError:
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# NOTE: needed for Python < 3.6
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from sha3 import sha3_256
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import pytest
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from pymongo import MongoClient
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from bigchaindb import backend
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from bigchaindb.common.transaction_mode_types import (BROADCAST_TX_COMMIT,
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BROADCAST_TX_ASYNC,
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BROADCAST_TX_SYNC)
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from bigchaindb.lib import Block
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@pytest.mark.bdb
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def test_asset_is_separated_from_transaciton(b):
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import copy
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from bigchaindb.models import Transaction
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from bigchaindb.common.crypto import generate_key_pair
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alice = generate_key_pair()
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bob = generate_key_pair()
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asset = {'Never gonna': ['give you up',
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'let you down',
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'run around'
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'desert you',
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'make you cry',
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'say goodbye',
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'tell a lie',
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'hurt you']}
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tx = Transaction.create([alice.public_key],
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[([bob.public_key], 1)],
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metadata=None,
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asset=asset)\
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.sign([alice.private_key])
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# with store_bulk_transactions we use `insert_many` where PyMongo
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# automatically adds an `_id` field to the tx, therefore we need the
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# deepcopy, for more info see:
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# https://api.mongodb.com/python/current/faq.html#writes-and-ids
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tx_dict = copy.deepcopy(tx.to_dict())
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b.store_bulk_transactions([tx])
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assert 'asset' not in backend.query.get_transaction(b.connection, tx.id)
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assert backend.query.get_asset(b.connection, tx.id)['data'] == asset
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assert b.get_transaction(tx.id).to_dict() == tx_dict
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@pytest.mark.bdb
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def test_get_latest_block(b):
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from bigchaindb.lib import Block
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for i in range(10):
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app_hash = os.urandom(16).hex()
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txn_id = os.urandom(16).hex()
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block = Block(app_hash=app_hash, height=i,
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transactions=[txn_id])._asdict()
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b.store_block(block)
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block = b.get_latest_block()
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assert block['height'] == 9
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@pytest.mark.bdb
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@patch('bigchaindb.backend.query.get_block', return_value=None)
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@patch('bigchaindb.BigchainDB.get_latest_block', return_value={'height': 10})
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def test_get_empty_block(_0, _1, b):
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assert b.get_block(5) == {'height': 5, 'transactions': []}
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def test_validation_error(b):
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from bigchaindb.models import Transaction
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from bigchaindb.common.crypto import generate_key_pair
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alice = generate_key_pair()
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tx = Transaction.create([alice.public_key],
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[([alice.public_key], 1)],
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asset=None)\
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.sign([alice.private_key]).to_dict()
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tx['metadata'] = ''
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assert not b.validate_transaction(tx)
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@patch('requests.post')
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def test_write_and_post_transaction(mock_post, b):
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from bigchaindb.models import Transaction
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from bigchaindb.common.crypto import generate_key_pair
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from bigchaindb.tendermint_utils import encode_transaction
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alice = generate_key_pair()
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tx = Transaction.create([alice.public_key],
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[([alice.public_key], 1)],
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asset=None)\
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.sign([alice.private_key]).to_dict()
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tx = b.validate_transaction(tx)
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b.write_transaction(tx, BROADCAST_TX_ASYNC)
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assert mock_post.called
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args, kwargs = mock_post.call_args
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assert BROADCAST_TX_ASYNC == kwargs['json']['method']
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encoded_tx = [encode_transaction(tx.to_dict())]
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assert encoded_tx == kwargs['json']['params']
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@patch('requests.post')
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@pytest.mark.parametrize('mode', [
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BROADCAST_TX_SYNC,
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BROADCAST_TX_ASYNC,
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BROADCAST_TX_COMMIT
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])
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def test_post_transaction_valid_modes(mock_post, b, mode):
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from bigchaindb.models import Transaction
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from bigchaindb.common.crypto import generate_key_pair
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alice = generate_key_pair()
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tx = Transaction.create([alice.public_key],
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[([alice.public_key], 1)],
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asset=None) \
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.sign([alice.private_key]).to_dict()
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tx = b.validate_transaction(tx)
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b.write_transaction(tx, mode)
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args, kwargs = mock_post.call_args
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assert mode == kwargs['json']['method']
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def test_post_transaction_invalid_mode(b):
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from bigchaindb.models import Transaction
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from bigchaindb.common.crypto import generate_key_pair
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from bigchaindb.common.exceptions import ValidationError
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alice = generate_key_pair()
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tx = Transaction.create([alice.public_key],
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[([alice.public_key], 1)],
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asset=None) \
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.sign([alice.private_key]).to_dict()
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tx = b.validate_transaction(tx)
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with pytest.raises(ValidationError):
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b.write_transaction(tx, 'nope')
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@pytest.mark.bdb
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def test_update_utxoset(b, signed_create_tx, signed_transfer_tx, db_context):
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mongo_client = MongoClient(host=db_context.host, port=db_context.port)
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b.update_utxoset(signed_create_tx)
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utxoset = mongo_client[db_context.name]['utxos']
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assert utxoset.count_documents({}) == 1
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utxo = utxoset.find_one()
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assert utxo['transaction_id'] == signed_create_tx.id
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assert utxo['output_index'] == 0
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b.update_utxoset(signed_transfer_tx)
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assert utxoset.count_documents({}) == 1
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utxo = utxoset.find_one()
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assert utxo['transaction_id'] == signed_transfer_tx.id
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assert utxo['output_index'] == 0
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@pytest.mark.bdb
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def test_store_transaction(mocker, b, signed_create_tx,
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signed_transfer_tx, db_context):
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mocked_store_asset = mocker.patch('bigchaindb.backend.query.store_assets')
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mocked_store_metadata = mocker.patch(
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'bigchaindb.backend.query.store_metadatas')
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mocked_store_transaction = mocker.patch(
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'bigchaindb.backend.query.store_transactions')
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b.store_bulk_transactions([signed_create_tx])
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# mongo_client = MongoClient(host=db_context.host, port=db_context.port)
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# utxoset = mongo_client[db_context.name]['utxos']
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# assert utxoset.count_documents({}) == 1
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# utxo = utxoset.find_one()
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# assert utxo['transaction_id'] == signed_create_tx.id
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# assert utxo['output_index'] == 0
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mocked_store_asset.assert_called_once_with(
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b.connection,
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[{'id': signed_create_tx.id, 'data': signed_create_tx.asset['data']}],
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)
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mocked_store_metadata.assert_called_once_with(
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b.connection,
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[{'id': signed_create_tx.id, 'metadata': signed_create_tx.metadata}],
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)
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mocked_store_transaction.assert_called_once_with(
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b.connection,
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[{k: v for k, v in signed_create_tx.to_dict().items()
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if k not in ('asset', 'metadata')}],
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)
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mocked_store_asset.reset_mock()
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mocked_store_metadata.reset_mock()
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mocked_store_transaction.reset_mock()
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b.store_bulk_transactions([signed_transfer_tx])
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# assert utxoset.count_documents({}) == 1
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# utxo = utxoset.find_one()
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# assert utxo['transaction_id'] == signed_transfer_tx.id
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# assert utxo['output_index'] == 0
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assert not mocked_store_asset.called
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mocked_store_metadata.asser_called_once_with(
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b.connection,
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[{'id': signed_transfer_tx.id, 'metadata': signed_transfer_tx.metadata}],
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)
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mocked_store_transaction.assert_called_once_with(
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b.connection,
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[{k: v for k, v in signed_transfer_tx.to_dict().items()
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if k != 'metadata'}],
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)
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@pytest.mark.bdb
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def test_store_bulk_transaction(mocker, b, signed_create_tx,
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signed_transfer_tx, db_context):
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mocked_store_assets = mocker.patch(
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'bigchaindb.backend.query.store_assets')
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mocked_store_metadata = mocker.patch(
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'bigchaindb.backend.query.store_metadatas')
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mocked_store_transactions = mocker.patch(
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'bigchaindb.backend.query.store_transactions')
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b.store_bulk_transactions((signed_create_tx,))
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# mongo_client = MongoClient(host=db_context.host, port=db_context.port)
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# utxoset = mongo_client[db_context.name]['utxos']
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# assert utxoset.count_documents({}) == 1
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# utxo = utxoset.find_one()
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# assert utxo['transaction_id'] == signed_create_tx.id
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# assert utxo['output_index'] == 0
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mocked_store_assets.assert_called_once_with(
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b.connection,
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[{'id': signed_create_tx.id, 'data': signed_create_tx.asset['data']}],
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)
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mocked_store_metadata.assert_called_once_with(
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b.connection,
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[{'id': signed_create_tx.id, 'metadata': signed_create_tx.metadata}],
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)
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mocked_store_transactions.assert_called_once_with(
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b.connection,
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[{k: v for k, v in signed_create_tx.to_dict().items()
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if k not in ('asset', 'metadata')}],
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)
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mocked_store_assets.reset_mock()
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mocked_store_metadata.reset_mock()
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mocked_store_transactions.reset_mock()
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b.store_bulk_transactions((signed_transfer_tx,))
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# assert utxoset.count_documents({}) == 1
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# utxo = utxoset.find_one()
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# assert utxo['transaction_id'] == signed_transfer_tx.id
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# assert utxo['output_index'] == 0
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assert not mocked_store_assets.called
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mocked_store_metadata.asser_called_once_with(
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b.connection,
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[{'id': signed_transfer_tx.id,
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'metadata': signed_transfer_tx.metadata}],
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)
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mocked_store_transactions.assert_called_once_with(
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b.connection,
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[{k: v for k, v in signed_transfer_tx.to_dict().items()
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if k != 'metadata'}],
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)
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@pytest.mark.bdb
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def test_delete_zero_unspent_outputs(b, utxoset):
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unspent_outputs, utxo_collection = utxoset
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delete_res = b.delete_unspent_outputs()
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assert delete_res is None
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assert utxo_collection.count_documents({}) == 3
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assert utxo_collection.count_documents(
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{'$or': [
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{'transaction_id': 'a', 'output_index': 0},
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{'transaction_id': 'b', 'output_index': 0},
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{'transaction_id': 'a', 'output_index': 1},
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]}
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) == 3
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@pytest.mark.bdb
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def test_delete_one_unspent_outputs(b, utxoset):
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unspent_outputs, utxo_collection = utxoset
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delete_res = b.delete_unspent_outputs(unspent_outputs[0])
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assert delete_res.raw_result['n'] == 1
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assert utxo_collection.count_documents(
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{'$or': [
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{'transaction_id': 'a', 'output_index': 1},
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{'transaction_id': 'b', 'output_index': 0},
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]}
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) == 2
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assert utxo_collection.count_documents(
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{'transaction_id': 'a', 'output_index': 0}) == 0
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@pytest.mark.bdb
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def test_delete_many_unspent_outputs(b, utxoset):
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unspent_outputs, utxo_collection = utxoset
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delete_res = b.delete_unspent_outputs(*unspent_outputs[::2])
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assert delete_res.raw_result['n'] == 2
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assert utxo_collection.count_documents(
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{'$or': [
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{'transaction_id': 'a', 'output_index': 0},
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{'transaction_id': 'b', 'output_index': 0},
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]}
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) == 0
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assert utxo_collection.count_documents(
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{'transaction_id': 'a', 'output_index': 1}) == 1
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@pytest.mark.bdb
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def test_store_zero_unspent_output(b, utxo_collection):
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res = b.store_unspent_outputs()
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assert res is None
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assert utxo_collection.count_documents({}) == 0
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@pytest.mark.bdb
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def test_store_one_unspent_output(b, unspent_output_1, utxo_collection):
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res = b.store_unspent_outputs(unspent_output_1)
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assert res.acknowledged
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assert len(res.inserted_ids) == 1
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assert utxo_collection.count_documents(
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{'transaction_id': unspent_output_1['transaction_id'],
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'output_index': unspent_output_1['output_index']}
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) == 1
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@pytest.mark.bdb
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def test_store_many_unspent_outputs(b, unspent_outputs, utxo_collection):
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res = b.store_unspent_outputs(*unspent_outputs)
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assert res.acknowledged
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assert len(res.inserted_ids) == 3
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assert utxo_collection.count_documents(
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{'transaction_id': unspent_outputs[0]['transaction_id']}
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) == 3
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def test_get_utxoset_merkle_root_when_no_utxo(b):
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assert b.get_utxoset_merkle_root() == sha3_256(b'').hexdigest()
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@pytest.mark.bdb
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@pytest.mark.usefixture('utxoset')
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def test_get_utxoset_merkle_root(b, utxoset):
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expected_merkle_root = (
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'86d311c03115bf4d287f8449ca5828505432d69b82762d47077b1c00fe426eac')
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merkle_root = b.get_utxoset_merkle_root()
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assert merkle_root == expected_merkle_root
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@pytest.mark.bdb
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def test_get_spent_transaction_critical_double_spend(b, alice, bob, carol):
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from bigchaindb.models import Transaction
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from bigchaindb.exceptions import CriticalDoubleSpend
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from bigchaindb.common.exceptions import DoubleSpend
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asset = {'test': 'asset'}
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tx = Transaction.create([alice.public_key],
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[([alice.public_key], 1)],
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asset=asset)\
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.sign([alice.private_key])
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tx_transfer = Transaction.transfer(tx.to_inputs(),
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[([bob.public_key], 1)],
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asset_id=tx.id)\
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.sign([alice.private_key])
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double_spend = Transaction.transfer(tx.to_inputs(),
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[([carol.public_key], 1)],
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asset_id=tx.id)\
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.sign([alice.private_key])
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same_input_double_spend = Transaction.transfer(tx.to_inputs() + tx.to_inputs(),
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[([bob.public_key], 1)],
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asset_id=tx.id)\
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.sign([alice.private_key])
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b.store_bulk_transactions([tx])
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with pytest.raises(DoubleSpend):
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same_input_double_spend.validate(b)
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assert b.get_spent(tx.id, tx_transfer.inputs[0].fulfills.output, [tx_transfer])
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with pytest.raises(DoubleSpend):
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b.get_spent(tx.id, tx_transfer.inputs[0].fulfills.output,
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[tx_transfer, double_spend])
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b.store_bulk_transactions([tx_transfer])
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with pytest.raises(DoubleSpend):
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b.get_spent(tx.id, tx_transfer.inputs[0].fulfills.output, [double_spend])
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b.store_bulk_transactions([double_spend])
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with pytest.raises(CriticalDoubleSpend):
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b.get_spent(tx.id, tx_transfer.inputs[0].fulfills.output)
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def test_validation_with_transaction_buffer(b):
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from bigchaindb.common.crypto import generate_key_pair
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from bigchaindb.models import Transaction
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priv_key, pub_key = generate_key_pair()
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create_tx = Transaction.create([pub_key], [([pub_key], 10)]).sign([priv_key])
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transfer_tx = Transaction.transfer(create_tx.to_inputs(),
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[([pub_key], 10)],
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asset_id=create_tx.id).sign([priv_key])
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double_spend = Transaction.transfer(create_tx.to_inputs(),
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[([pub_key], 10)],
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asset_id=create_tx.id).sign([priv_key])
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assert b.is_valid_transaction(create_tx)
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assert b.is_valid_transaction(transfer_tx, [create_tx])
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assert not b.is_valid_transaction(create_tx, [create_tx])
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assert not b.is_valid_transaction(transfer_tx, [create_tx, transfer_tx])
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assert not b.is_valid_transaction(double_spend, [create_tx, transfer_tx])
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@pytest.mark.bdb
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def test_migrate_abci_chain_yields_on_genesis(b):
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b.migrate_abci_chain()
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latest_chain = b.get_latest_abci_chain()
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assert latest_chain is None
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@pytest.mark.bdb
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@pytest.mark.parametrize('chain,block_height,expected', [
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(
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(1, 'chain-XYZ', True),
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4,
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{'height': 5, 'chain_id': 'chain-XYZ-migrated-at-height-4',
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'is_synced': False},
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),
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(
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(5, 'chain-XYZ-migrated-at-height-4', True),
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13,
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{'height': 14, 'chain_id': 'chain-XYZ-migrated-at-height-13',
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'is_synced': False},
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),
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])
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def test_migrate_abci_chain_generates_new_chains(b, chain, block_height,
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expected):
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b.store_abci_chain(*chain)
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b.store_block(Block(app_hash='', height=block_height,
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transactions=[])._asdict())
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b.migrate_abci_chain()
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latest_chain = b.get_latest_abci_chain()
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assert latest_chain == expected
|
|
|
|
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|
@pytest.mark.bdb
|
|
def test_get_spent_key_order(b, user_pk, user_sk, user2_pk, user2_sk):
|
|
from bigchaindb import backend
|
|
from bigchaindb.models import Transaction
|
|
from bigchaindb.common.crypto import generate_key_pair
|
|
from bigchaindb.common.exceptions import DoubleSpend
|
|
|
|
alice = generate_key_pair()
|
|
bob = generate_key_pair()
|
|
|
|
tx1 = Transaction.create([user_pk],
|
|
[([alice.public_key], 3), ([user_pk], 2)],
|
|
asset=None)\
|
|
.sign([user_sk])
|
|
b.store_bulk_transactions([tx1])
|
|
|
|
inputs = tx1.to_inputs()
|
|
tx2 = Transaction.transfer([inputs[1]], [([user2_pk], 2)], tx1.id).sign([user_sk])
|
|
assert tx2.validate(b)
|
|
|
|
tx2_dict = tx2.to_dict()
|
|
fulfills = tx2_dict['inputs'][0]['fulfills']
|
|
tx2_dict['inputs'][0]['fulfills'] = {'output_index': fulfills['output_index'],
|
|
'transaction_id': fulfills['transaction_id']}
|
|
|
|
backend.query.store_transactions(b.connection, [tx2_dict])
|
|
|
|
tx3 = Transaction.transfer([inputs[1]], [([bob.public_key], 2)], tx1.id).sign([user_sk])
|
|
|
|
with pytest.raises(DoubleSpend):
|
|
tx3.validate(b)
|