def test_create_witness(self):
iw = tx.InputWitness(self.stack)
self.assertEqual(len(iw.stack), len(self.stack))
for item, expected in zip(iw.stack, self.stack):
self.assertEqual(item, expected)
bad_stack = [None, 1]
with self.assertRaises(ValueError) as context:
tx.InputWitness(bad_stack)
self.assertIn(
'Invalid witness stack item. '
'Expected WitnessStackItem. Got None', str(context.exception))
def test_tx_witness(self):
t = tx.Tx(self.version, self.none_flag, self.tx_ins, self.tx_outs,
self.none_witnesses, self.lock_time)
self.assertEqual(t, helpers.P2PKH1['ser']['tx']['signed'])
with self.assertRaises(ValueError) as context:
tx.Tx(self.version, b'\x00\x00', self.tx_ins, self.tx_outs,
self.none_witnesses, self.lock_time)
self.assertIn('Invald segwit flag. Expected None or ',
str(context.exception))
with self.assertRaises(ValueError) as context:
tx.Tx(self.version, None, self.tx_ins, self.tx_outs,
self.tx_witnesses, self.lock_time)
self.assertIn('Got witnesses but no segwit flag.',
str(context.exception))
with self.assertRaises(ValueError) as context:
stack = self.stack + [self.stack[0]]
witness = tx.InputWitness(stack)
tx.Tx(self.version, self.segwit_flag, self.tx_ins, self.tx_outs,
witness, self.lock_time)
self.assertIn('Witness and TxIn lists must be same length. ',
str(context.exception))
with self.assertRaises(ValueError) as context:
tx.Tx(self.version, self.segwit_flag, self.tx_ins, self.tx_outs,
[1 for _ in self.tx_witnesses], self.lock_time)
self.assertIn(
'Invalid InputWitness. Expected instance of InputWitness.',
str(context.exception))
def setUp(self):
self.outpoint_index = helpers.P2PKH1['ser']['ins'][0]['index']
self.outpoint_tx_id = helpers.P2PKH1['ser']['ins'][0]['hash']
self.stack_script = helpers.P2PKH1['ser']['ins'][0]['stack_script']
self.redeem_script = helpers.P2PKH1['ser']['ins'][0]['redeem_script']
self.sequence = helpers.P2PKH1['ser']['ins'][0]['sequence']
self.outpoint = tx.Outpoint(self.outpoint_tx_id, self.outpoint_index)
self.tx_in = tx.TxIn(self.outpoint, self.stack_script,
self.redeem_script, self.sequence)
self.value_0 = helpers.P2PKH1['ser']['outs'][0]['value']
self.output_script_0 = \
helpers.P2PKH1['ser']['outs'][0]['pk_script']
self.value_1 = helpers.P2PKH1['ser']['outs'][1]['value']
self.output_script_1 = \
helpers.P2PKH1['ser']['outs'][1]['pk_script']
self.tx_out_0 = tx.TxOut(self.value_0, self.output_script_0)
self.tx_out_1 = tx.TxOut(self.value_1, self.output_script_1)
self.version = helpers.P2PKH1['ser']['version']
self.none_flag = None
self.tx_ins = [self.tx_in]
self.tx_outs = [self.tx_out_0, self.tx_out_1]
self.none_witnesses = None
self.lock_time = helpers.P2PKH1['ser']['locktime']
self.segwit_flag = b'\x00\x01'
self.stack = [
tx.WitnessStackItem(b)
for b in helpers.P2WSH['ser']['witnesses'][0]['wit_stack_items']
]
self.tx_witnesses = [tx.InputWitness(self.stack)]
def test_everything_witness(self):
version = bytearray([0] * 4)
flag = b'\x00\x01'
outpoint_index = utils.i2le_padded(0, 4)
outpoint_tx_id = bytearray(bytearray.fromhex(
'10399b3f20cbdd4b5ac3f823afdba28b'
'9f70e21437a59b312a1b62c42c5cd101'))[::-1]
outpoint = tx.Outpoint(outpoint_tx_id, outpoint_index)
sequence = utils.i2le_padded(0, 4)
script = bytearray(bytearray.fromhex('473044022000e02ea97289a35181a9bfabd324f12439410db11c4e94978cdade6a665bf1840220458b87c34d8bb5e4d70d01041c7c2d714ea8bfaca2c2d2b1f9e5749c3ee17e3d012102ed0851f0b4c4458f80e0310e57d20e12a84642b8e097fe82be229edbd7dbd53920f6665740b1f950eb58d646b1fae9be28cef842da5e51dc78459ad2b092e7fd6e514c5163a914bb408296de2420403aa79eb61426bb588a08691f8876a91431b31321831520e346b069feebe6e9cf3dd7239c670400925e5ab17576a9140d22433293fe9652ea00d21c5061697aef5ddb296888ac')) # noqa: E501
tx_in = tx.TxIn(outpoint, script, bytearray(), sequence)
tx_ins = [tx_in]
tx_outs = [
tx.TxOut(
value=bytearray(utils.i2le_padded(2000, 8)),
output_script=bytearray(bytearray.fromhex('76a914f2539f42058da784a9d54615ad074436cf3eb85188ac'))) # noqa: E501
]
none_witnesses = [
tx.InputWitness(
[
tx.WitnessStackItem(bytearray([0x88] * 18)),
tx.WitnessStackItem(bytearray([0x99] * 18))
]
)
]
lock_time = bytearray([0xff] * 4)
tx.Tx(version, flag, tx_ins, tx_outs, none_witnesses, lock_time)
def make_witness(data_list):
'''
list(bytearray) -> InputWitness
'''
return tx.InputWitness(
stack=[make_witness_stack_item(item) for item in data_list])