def test_transaction_deserialization(user_input, user_output, data):
from bigchaindb.common.transaction import Transaction
from .utils import validate_transaction_model
expected_asset = {'data': data}
expected = Transaction(Transaction.CREATE, expected_asset, [user_input],
[user_output], None, Transaction.VERSION)
tx = {
'version': Transaction.VERSION,
# NOTE: This test assumes that Inputs and Outputs can
# successfully be serialized
'inputs': [user_input.to_dict()],
'outputs': [user_output.to_dict()],
'operation': Transaction.CREATE,
'metadata': None,
'asset': {
'data': data,
}
}
tx_no_signatures = Transaction._remove_signatures(tx)
tx['id'] = Transaction._to_hash(Transaction._to_str(tx_no_signatures))
tx = Transaction.from_dict(tx)
assert tx == expected
validate_transaction_model(tx)
def test_validate_input_with_invalid_parameters(utx):
from bigchaindb.common.transaction import Transaction
input_conditions = [out.fulfillment.condition_uri for out in utx.outputs]
tx_dict = utx.to_dict()
tx_dict = Transaction._remove_signatures(tx_dict)
tx_serialized = Transaction._to_str(tx_dict)
valid = utx._input_valid(utx.inputs[0], tx_serialized, input_conditions)
assert not valid
def get_message_to_sign(transaction):
from bigchaindb.common.transaction import Transaction
# fulfillments are not part of the message to sign
tx_dict = Transaction._remove_signatures(transaction.to_dict())
return Transaction._to_str(tx_dict).encode()
