def test_validate_multiple_fulfillments(user_ffill, user_cond, user_priv):
from copy import deepcopy
from bigchaindb_common.crypto import SigningKey
from bigchaindb_common.transaction import Transaction, Asset
tx = Transaction(Transaction.CREATE, Asset(),
[user_ffill, deepcopy(user_ffill)],
[user_ffill, deepcopy(user_cond)])
expected_first = deepcopy(tx)
expected_second = deepcopy(tx)
expected_first.fulfillments = [expected_first.fulfillments[0]]
expected_first.conditions = [expected_first.conditions[0]]
expected_second.fulfillments = [expected_second.fulfillments[1]]
expected_second.conditions = [expected_second.conditions[1]]
expected_first_bytes = str(expected_first).encode()
expected_first.fulfillments[0].fulfillment.sign(expected_first_bytes,
SigningKey(user_priv))
expected_second_bytes = str(expected_second).encode()
expected_second.fulfillments[0].fulfillment.sign(expected_second_bytes,
SigningKey(user_priv))
tx.sign([user_priv])
assert tx.fulfillments[0].to_dict()['fulfillment'] == \
expected_first.fulfillments[0].fulfillment.serialize_uri()
assert tx.fulfillments[1].to_dict()['fulfillment'] == \
expected_second.fulfillments[0].fulfillment.serialize_uri()
assert tx.fulfillments_valid() is True
def test_multiple_fulfillment_validation_of_transfer_tx(user_ffill, user_cond,
user_priv, user2_pub,
user2_priv, user3_pub,
user3_priv):
from copy import deepcopy
from bigchaindb_common.transaction import (Transaction, TransactionLink,
Fulfillment, Condition, Asset)
from cryptoconditions import Ed25519Fulfillment
tx = Transaction(Transaction.CREATE, Asset(),
[user_ffill, deepcopy(user_ffill)],
[user_cond, deepcopy(user_cond)])
tx.sign([user_priv])
fulfillments = [Fulfillment(cond.fulfillment, cond.owners_after,
TransactionLink(tx.id, index))
for index, cond in enumerate(tx.conditions)]
conditions = [Condition(Ed25519Fulfillment(public_key=user3_pub),
[user3_pub]),
Condition(Ed25519Fulfillment(public_key=user3_pub),
[user3_pub])]
transfer_tx = Transaction('TRANSFER', tx.asset, fulfillments, conditions)
transfer_tx = transfer_tx.sign([user_priv])
assert transfer_tx.fulfillments_valid(tx.conditions) is True
def test_validate_tx_simple_create_signature(user_ffill, user_cond, user_priv):
from copy import deepcopy
from bigchaindb_common.crypto import SigningKey
from bigchaindb_common.transaction import Transaction, Asset
tx = Transaction(Transaction.CREATE, Asset(), [user_ffill], [user_cond])
expected = deepcopy(user_cond)
expected.fulfillment.sign(str(tx).encode(), SigningKey(user_priv))
tx.sign([user_priv])
assert tx.fulfillments[0].to_dict()['fulfillment'] == \
expected.fulfillment.serialize_uri()
assert tx.fulfillments_valid() is True