Python Transaction.create方法代码示例

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
def txns(b, user_pk, user_sk, user2_pk, user2_sk):
    txs = [Transaction.create([user_pk], [([user2_pk], 1)]).sign([user_sk]),
           Transaction.create([user2_pk], [([user_pk], 1)]).sign([user2_sk]),
           Transaction.create([user_pk], [([user_pk], 1), ([user2_pk], 1)])
           .sign([user_sk])]
    b.store_bulk_transactions(txs)
    return txs

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
def test_get_metadata_limit_tendermint(client, b, alice):
    from bigchaindb.models import Transaction

    # create two assets
    asset1 = {'msg': 'abc 1'}
    meta1 = {'key': 'meta 1'}
    tx1 = Transaction.create([alice.public_key], [([alice.public_key], 1)], metadata=meta1,
                             asset=asset1).sign([alice.private_key])
    b.store_bulk_transactions([tx1])

    asset2 = {'msg': 'abc 2'}
    meta2 = {'key': 'meta 2'}
    tx2 = Transaction.create([alice.public_key], [([alice.public_key], 1)], metadata=meta2,
                             asset=asset2).sign([alice.private_key])
    b.store_bulk_transactions([tx2])

    # test that both assets are returned without limit
    res = client.get(METADATA_ENDPOINT + '?search=meta')
    assert res.status_code == 200
    assert len(res.json) == 2

    # test that only one asset is returned when using limit=1
    res = client.get(METADATA_ENDPOINT + '?search=meta&limit=1')
    assert res.status_code == 200
    assert len(res.json) == 1

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
def test_asset_id_mismatch(alice, user_pk):
    from bigchaindb.models import Transaction
    from bigchaindb.common.exceptions import AssetIdMismatch

    tx1 = Transaction.create([alice.public_key], [([user_pk], 1)],
                             metadata={'msg': random.random()})
    tx1.sign([alice.private_key])
    tx2 = Transaction.create([alice.public_key], [([user_pk], 1)],
                             metadata={'msg': random.random()})
    tx2.sign([alice.private_key])

    with pytest.raises(AssetIdMismatch):
        Transaction.get_asset_id([tx1, tx2])

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
def test_asset_is_separated_from_transaciton(b):
    import copy
    from bigchaindb.models import Transaction
    from bigchaindb.common.crypto import generate_key_pair

    alice = generate_key_pair()
    bob = generate_key_pair()

    asset = {'Never gonna': ['give you up',
                             'let you down',
                             'run around'
                             'desert you',
                             'make you cry',
                             'say goodbye',
                             'tell a lie',
                             'hurt you']}

    tx = Transaction.create([alice.public_key],
                            [([bob.public_key], 1)],
                            metadata=None,
                            asset=asset)\
                    .sign([alice.private_key])

    # with 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(b.connection, tx.id)
    assert backend.query.get_asset(b.connection, tx.id)['data'] == asset
    assert b.get_transaction(tx.id).to_dict() == tx_dict

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
    def test_get_spent_multiple_owners(self, b, user_sk, user_pk, alice):
        from bigchaindb.common import crypto
        from bigchaindb.models import Transaction

        user2_sk, user2_pk = crypto.generate_key_pair()
        user3_sk, user3_pk = crypto.generate_key_pair()

        transactions = []
        for i in range(3):
            payload = {'somedata': i}
            tx = Transaction.create([alice.public_key], [([user_pk, user2_pk], 1)],
                                    payload)
            tx = tx.sign([alice.private_key])
            transactions.append(tx)

        b.store_bulk_transactions(transactions)

        owned_inputs_user1 = b.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

        # create a transaction
        tx = Transaction.transfer(transactions[0].to_inputs(),
                                  [([user3_pk], 1)],
                                  asset_id=transactions[0].id)
        tx = tx.sign([user_sk, user2_sk])
        b.store_bulk_transactions([tx])

        # check that used inputs are marked as spent
        assert b.get_spent(transactions[0].id, 0) == tx
        # check that the other remain marked as unspent
        for unspent in transactions[1:]:
            assert b.get_spent(unspent.id, 0) is None

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
    def test_get_spent_single_tx_single_output(self, b, user_sk, user_pk, alice):
        from bigchaindb.common import crypto
        from bigchaindb.models import Transaction

        user2_sk, user2_pk = crypto.generate_key_pair()

        tx = Transaction.create([alice.public_key], [([user_pk], 1)])
        tx = tx.sign([alice.private_key])
        b.store_bulk_transactions([tx])

        owned_inputs_user1 = b.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)
        assert spent_inputs_user1 is None

        # create a transaction and send it
        tx = Transaction.transfer(tx.to_inputs(), [([user2_pk], 1)],
                                  asset_id=tx.id)
        tx = tx.sign([user_sk])
        b.store_bulk_transactions([tx])

        spent_inputs_user1 = b.get_spent(input_txid, 0)
        assert spent_inputs_user1 == tx

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
    def test_get_owned_ids_multiple_owners(self, b, user_sk, user_pk, alice):
        from bigchaindb.common import crypto
        from bigchaindb.common.transaction import TransactionLink
        from bigchaindb.models import Transaction

        user2_sk, user2_pk = crypto.generate_key_pair()
        user3_sk, user3_pk = crypto.generate_key_pair()

        tx = Transaction.create([alice.public_key], [([user_pk, user2_pk], 1)])
        tx = tx.sign([alice.private_key])

        b.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)
        expected_owned_inputs_user1 = [TransactionLink(tx.id, 0)]

        assert owned_inputs_user1 == owned_inputs_user2
        assert owned_inputs_user1 == expected_owned_inputs_user1

        tx = Transaction.transfer(tx.to_inputs(), [([user3_pk], 1)],
                                  asset_id=tx.id)
        tx = tx.sign([user_sk, user2_sk])
        b.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)

        assert owned_inputs_user1 == owned_inputs_user2
        assert not spent_user1

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
    def test_get_owned_ids_single_tx_multiple_outputs(self, b, user_sk,
                                                      user_pk, alice):
        from bigchaindb.common import crypto
        from bigchaindb.common.transaction import TransactionLink
        from bigchaindb.models import Transaction

        user2_sk, user2_pk = crypto.generate_key_pair()

        # create divisible asset
        tx_create = Transaction.create([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])

        # 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)

        expected_owned_inputs_user1 = [TransactionLink(tx_create.id, 0),
                                       TransactionLink(tx_create.id, 1)]
        assert owned_inputs_user1 == expected_owned_inputs_user1
        assert owned_inputs_user2 == []

        # transfer divisible asset divided in two outputs
        tx_transfer = Transaction.transfer(tx_create.to_inputs(),
                                           [([user2_pk], 1), ([user2_pk], 1)],
                                           asset_id=tx_create.id)
        tx_transfer_signed = tx_transfer.sign([user_sk])
        b.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)
        assert owned_inputs_user1 == expected_owned_inputs_user1
        assert owned_inputs_user2 == [TransactionLink(tx_transfer.id, 0),
                                      TransactionLink(tx_transfer.id, 1)]

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
    def test_get_owned_ids_single_tx_single_output(self, b, user_sk, user_pk, alice):
        from bigchaindb.common import crypto
        from bigchaindb.common.transaction import TransactionLink
        from bigchaindb.models import Transaction

        user2_sk, user2_pk = crypto.generate_key_pair()

        tx = Transaction.create([alice.public_key], [([user_pk], 1)])
        tx = tx.sign([alice.private_key])
        b.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)
        assert owned_inputs_user1 == [TransactionLink(tx.id, 0)]
        assert owned_inputs_user2 == []

        tx_transfer = Transaction.transfer(tx.to_inputs(), [([user2_pk], 1)],
                                           asset_id=tx.id)
        tx_transfer = tx_transfer.sign([user_sk])
        b.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)

        assert owned_inputs_user1 == [TransactionLink(tx.id, 0)]
        assert owned_inputs_user2 == [TransactionLink(tx_transfer.id, 0)]

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
    def test_multiple_owners_before_multiple_owners_after_single_input(self, b,
                                                                       user_sk,
                                                                       user_pk,
                                                                       alice):
        from bigchaindb.common import crypto
        from bigchaindb.models import Transaction

        user2_sk, user2_pk = crypto.generate_key_pair()
        user3_sk, user3_pk = crypto.generate_key_pair()
        user4_sk, user4_pk = crypto.generate_key_pair()

        tx = Transaction.create([alice.public_key], [([user_pk, user2_pk], 1)])
        tx = tx.sign([alice.private_key])
        b.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 = Transaction.transfer(tx_input.to_inputs(),
                                  [([user3_pk, user4_pk], 1)],
                                  asset_id=tx_input.id)
        tx = tx.sign([user_sk, user2_sk])

        tx.validate(b)
        assert len(tx.inputs) == 1
        assert len(tx.outputs) == 1

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
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)

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
def test_deliver_tx__double_spend_fails(b, init_chain_request):
    from bigchaindb import App
    from bigchaindb.models import Transaction
    from bigchaindb.common.crypto import generate_key_pair

    alice = generate_key_pair()
    bob = generate_key_pair()

    tx = Transaction.create([alice.public_key],
                            [([bob.public_key], 1)])\
                    .sign([alice.private_key])

    app = App(b)
    app.init_chain(init_chain_request)

    begin_block = RequestBeginBlock()
    app.begin_block(begin_block)

    result = app.deliver_tx(encode_tx_to_bytes(tx))
    assert result.code == CodeTypeOk

    app.end_block(RequestEndBlock(height=99))
    app.commit()

    assert b.get_transaction(tx.id).id == tx.id
    result = app.deliver_tx(encode_tx_to_bytes(tx))
    assert result.code == CodeTypeError

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
def test_post_create_transaction_with_language(b, client, nested, language,
                                               expected_status_code):
    from bigchaindb.models import Transaction
    from bigchaindb.backend.localmongodb.connection import LocalMongoDBConnection

    if isinstance(b.connection, LocalMongoDBConnection):
        user_priv, user_pub = crypto.generate_key_pair()
        lang_obj = {'language': language}

        if nested:
            asset = {'root': lang_obj}
        else:
            asset = lang_obj

        tx = Transaction.create([user_pub], [([user_pub], 1)],
                                asset=asset)
        tx = tx.sign([user_priv])
        res = client.post(TX_ENDPOINT, data=json.dumps(tx.to_dict()))
        assert res.status_code == expected_status_code
        if res.status_code == 400:
            expected_error_message = (
                'Invalid transaction (ValidationError): MongoDB does not support '
                'text search for the language "{}". If you do not understand this '
                'error message then please rename key/field "language" to something '
                'else like "lang".').format(language)
            assert res.json['message'] == expected_error_message

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
def test_memoize_from_dict(b):
    alice = generate_key_pair()
    asset = {
        'data': {'id': 'test_id'},
    }

    assert from_dict.cache_info().hits == 0
    assert from_dict.cache_info().misses == 0

    tx = Transaction.create([alice.public_key],
                            [([alice.public_key], 1)],
                            asset=asset,)\
                    .sign([alice.private_key])
    tx_dict = deepcopy(tx.to_dict())

    Transaction.from_dict(tx_dict)

    assert from_dict.cache_info().hits == 0
    assert from_dict.cache_info().misses == 1

    Transaction.from_dict(tx_dict)
    Transaction.from_dict(tx_dict)

    assert from_dict.cache_info().hits == 2
    assert from_dict.cache_info().misses == 1

# 需要导入模块: from bigchaindb.models import Transaction [as 别名]
# 或者: from bigchaindb.models.Transaction import create [as 别名]
def test_post_create_transaction_with_invalid_id(mock_logger, b, client):
    from bigchaindb.common.exceptions import InvalidHash
    from bigchaindb.models import Transaction
    user_priv, user_pub = crypto.generate_key_pair()

    tx = Transaction.create([user_pub], [([user_pub], 1)])
    tx = tx.sign([user_priv]).to_dict()
    tx['id'] = 'abcd' * 16

    res = client.post(TX_ENDPOINT, data=json.dumps(tx))
    expected_status_code = 400
    expected_error_message = (
        "Invalid transaction ({}): The transaction's id '{}' isn't equal to "
        "the hash of its body, i.e. it's not valid."
    ).format(InvalidHash.__name__, tx['id'])
    assert res.status_code == expected_status_code
    assert res.json['message'] == expected_error_message
    assert mock_logger.error.called
    assert (
        'HTTP API error: %(status)s - %(method)s:%(path)s - %(message)s' in
        mock_logger.error.call_args[0]
    )
    assert (
        {
            'message': expected_error_message, 'status': expected_status_code,
            'method': 'POST', 'path': TX_ENDPOINT
        } in mock_logger.error.call_args[0]
    )