def tx_from_json_dict(r):
version = r.get("version")
lock_time = r.get("locktime")
txs_in = []
for vin in r.get("vin"):
if "coinbase" in vin:
previous_hash = b'\0' * 32
script = h2b(vin.get("coinbase"))
previous_index = 4294967295
else:
previous_hash = h2b_rev(vin.get("txid"))
scriptSig = vin.get("scriptSig")
if "hex" in scriptSig:
script = h2b(scriptSig.get("hex"))
else:
script = tools.compile(scriptSig.get("asm"))
previous_index = vin.get("vout")
sequence = vin.get("sequence")
txs_in.append(TxIn(previous_hash, previous_index, script, sequence))
txs_out = []
for vout in r.get("vout"):
coin_value = btc_to_satoshi(decimal.Decimal(vout.get("value")))
script = tools.compile(vout.get("scriptPubKey").get("asm"))
txs_out.append(TxOut(coin_value, script))
tx = Tx(version, txs_in, txs_out, lock_time)
bh = r.get("blockhash")
if bh:
bh = h2b_rev(bh)
tx.confirmation_block_hash = bh
return tx
def make_script_test(script_in, script_out, flags_string, comment, expected,
coin_value, script_witness):
script_in_bin = compile(script_in)
script_out_bin = compile(script_out)
script_witness_bin = [h2b(w) for w in script_witness]
flags = parse_flags(flags_string)
def f(self):
try:
credit_tx = build_credit_tx(script_out_bin, coin_value)
spend_tx = build_spending_tx(script_in_bin, credit_tx)
spend_tx.txs_in[0].witness = script_witness_bin
msg = ''
check_solution(spend_tx, tx_in_idx=0, flags=flags)
r = 0
except ScriptError as se:
r = se.error_code()
msg = se.args[0]
except:
r = -1
# for now, just deal with 0 versus nonzero
expect_error = getattr(errno, expected)
if r != expect_error:
dump_failure_info(spend_tx, script_in, script_out, flags,
flags_string, expected, r, msg, comment)
self.assertEqual(r, expect_error)
return f
def dump_failure_info(spend_tx, script_in, script_out, flags, flags_string,
expected, actual, message, comment):
return
print()
print(flags_string)
print("EXPECTED: %s" % expected)
print("ACTUAL: %s" % actual)
print("MESSAGE: %s" % message)
print(comment)
print(disassemble(compile(script_in)))
print(disassemble(compile(script_out)))
def tbf(*args):
pc, opcode, data, stack, altstack, is_signature, is_condition = args
from pycoin_grs.tx.script.tools import disassemble_for_opcode_data
opd = disassemble_for_opcode_data(opcode, data)
if len(altstack) == 0:
altstack = ''
print("%s %s\n %3x %s" % (stack, altstack, pc, opd))
import pdb
pdb.set_trace()
print("test failed: '%s' '%s' : %s %s" %
(script_in, script_out, comment, flags_string))
try:
check_solution(spend_tx, tx_in_idx=0, traceback_f=tbf, flags=flags)
except Exception as ex:
print(ex)
try:
check_solution(spend_tx, tx_in_idx=0, traceback_f=tbf, flags=flags)
except Exception as ex:
print(ex)
import pdb
pdb.set_trace()
def test_issue_225(self):
script = tools.compile("OP_RETURN 'foobar'")
tx_out = TxOut(1, script)
address = tx_out.bitcoin_address(netcode="XTN")
self.assertEqual(address, "(nulldata 666f6f626172)")
address = tx_out.bitcoin_address(netcode="BTC")
self.assertEqual(address, "(nulldata 666f6f626172)")
def test_nulldata(self):
OP_RETURN = tools.compile("OP_RETURN")
# note that because chr() is used samples with length > 255 will not work
for sample in [
b'test', b'me', b'a', b'39qEwuwyb2cAX38MFtrNzvq3KV9hSNov3q',
b'', b'0' * 80
]:
sample_script = OP_RETURN + tools.bin_script([sample])
nd = ScriptNulldata(sample)
self.assertEqual(nd.nulldata, sample)
self.assertEqual(nd.script(), sample_script)
nd2 = ScriptNulldata.from_script(sample_script)
self.assertEqual(nd.nulldata, nd2.nulldata)
out = TxOut(1, nd.script())
# ensure we can create a tx
Tx(0, [], [out])
# convert between asm and back to ensure no bugs with compilation
self.assertEqual(nd.script(),
tools.compile(tools.disassemble(nd.script())))
def txs_from_json(path):
"""
Read tests from ./data/tx_??valid.json
Format is an array of arrays
Inner arrays are either [ "comment" ]
or [[[prevout hash, prevout index, prevout scriptPubKey], [input 2], ...], serializedTransaction, verifyFlags]
... where all scripts are stringified scripts.
verifyFlags is a comma separated list of script verification flags to apply, or "NONE"
"""
comments = None
with open(path, 'r') as f:
for tvec in json.load(f):
if len(tvec) == 1:
comments = tvec[0]
continue
assert len(tvec) == 3
prevouts = tvec[0]
for prevout in prevouts:
assert len(prevout) in (3, 4)
tx_hex = tvec[1]
flag_mask = parse_flags(tvec[2])
try:
tx = Tx.from_hex(tx_hex)
except:
print("Cannot parse tx_hex: %s" % tx_hex)
raise
spendable_db = {}
blank_spendable = Spendable(0, b'', b'\0' * 32, 0)
for prevout in prevouts:
coin_value = 1000000
if len(prevout) == 4:
coin_value = prevout[3]
spendable = Spendable(coin_value=coin_value,
script=compile(prevout[2]),
tx_hash=h2b_rev(prevout[0]),
tx_out_index=prevout[1])
spendable_db[(spendable.tx_hash,
spendable.tx_out_index)] = spendable
unspents = [
spendable_db.get((tx_in.previous_hash, tx_in.previous_index),
blank_spendable) for tx_in in tx.txs_in
]
tx.set_unspents(unspents)
yield (tx, flag_mask, comments)
def check(s):
b1 = compile(s)
s1 = disassemble(b1)
b2 = compile(s1)
self.assertEqual(s, s1)
self.assertEqual(b1, b2)
def test_bip143_txs(self):
# these five examples are from BIP 143 at
# https://github.com/bitcoin/bips/blob/master/bip-0143.mediawiki
tx_u1, tx_s1 = self.check_bip143_tx(
"0100000002fff7f7881a8099afa6940d42d1e7f6362bec38171ea3edf433541db4e4ad"
"969f0000000000eeffffffef51e1b804cc89d182d279655c3aa89e815b1b309fe287d9"
"b2b55d57b90ec68a0100000000ffffffff02202cb206000000001976a9148280b37df3"
"78db99f66f85c95a783a76ac7a6d5988ac9093510d000000001976a9143bde42dbee7e"
"4dbe6a21b2d50ce2f0167faa815988ac11000000",
"01000000000102fff7f7881a8099afa6940d42d1e7f6362bec38171ea3edf433541db4"
"e4ad969f00000000494830450221008b9d1dc26ba6a9cb62127b02742fa9d754cd3beb"
"f337f7a55d114c8e5cdd30be022040529b194ba3f9281a99f2b1c0a19c0489bc22ede9"
"44ccf4ecbab4cc618ef3ed01eeffffffef51e1b804cc89d182d279655c3aa89e815b1b"
"309fe287d9b2b55d57b90ec68a0100000000ffffffff02202cb206000000001976a914"
"8280b37df378db99f66f85c95a783a76ac7a6d5988ac9093510d000000001976a9143b"
"de42dbee7e4dbe6a21b2d50ce2f0167faa815988ac000247304402203609e17b84f6a7"
"d30c80bfa610b5b4542f32a8a0d5447a12fb1366d7f01cc44a0220573a954c45183315"
"61406f90300e8f3358f51928d43c212a8caed02de67eebee0121025476c2e83188368d"
"a1ff3e292e7acafcdb3566bb0ad253f62fc70f07aeee635711000000",
[(6.25,
"2103c9f4836b9a4f77fc0d81f7bcb01b7f1b35916864b9476c241ce9fc198bd25432ac"
),
(6, "00141d0f172a0ecb48aee1be1f2687d2963ae33f71a1")], 2, 2, 1, 17)
self.assertEqual(
b2h(tx_s1.hash_prevouts(SIGHASH_ALL)),
"96b827c8483d4e9b96712b6713a7b68d6e8003a781feba36c31143470b4efd37")
self.assertEqual(
b2h(tx_s1.hash_sequence(SIGHASH_ALL)),
"52b0a642eea2fb7ae638c36f6252b6750293dbe574a806984b8e4d8548339a3b")
self.assertEqual(
b2h(tx_s1.hash_outputs(SIGHASH_ALL, 0)),
"863ef3e1a92afbfdb97f31ad0fc7683ee943e9abcf2501590ff8f6551f47e5e5")
script = tools.compile(
"OP_DUP OP_HASH160 %s OP_EQUALVERIFY OP_CHECKSIG" %
b2h(tx_s1.unspents[1].script[2:]))
self.assertEqual(
b2h(
tx_s1.segwit_signature_preimage(script=script,
tx_in_idx=1,
hash_type=SIGHASH_ALL)),
"0100000096b827c8483d4e9b96712b6713a7b68d6e8003a781feba36c31143470b4efd"
"3752b0a642eea2fb7ae638c36f6252b6750293dbe574a806984b8e4d8548339a3bef51"
"e1b804cc89d182d279655c3aa89e815b1b309fe287d9b2b55d57b90ec68a0100000019"
"76a9141d0f172a0ecb48aee1be1f2687d2963ae33f71a188ac0046c32300000000ffff"
"ffff863ef3e1a92afbfdb97f31ad0fc7683ee943e9abcf2501590ff8f6551f47e5e511"
"00000001000000")
self.assertEqual(
b2h(to_bytes_32(tx_s1.signature_for_hash_type_segwit(script, 1,
1))),
"c37af31116d1b27caf68aae9e3ac82f1477929014d5b917657d0eb49478cb670")
self.check_tx_can_be_signed(tx_u1, tx_s1, [
0xbbc27228ddcb9209d7fd6f36b02f7dfa6252af40bb2f1cbc7a557da8027ff866,
0x619c335025c7f4012e556c2a58b2506e30b8511b53ade95ea316fd8c3286feb9
])
tx_u2, tx_s2 = self.check_bip143_tx(
"0100000001db6b1b20aa0fd7b23880be2ecbd4a98130974cf4748fb66092ac4d3ceb1a"
"54770100000000feffffff02b8b4eb0b000000001976a914a457b684d7f0d539a46a45"
"bbc043f35b59d0d96388ac0008af2f000000001976a914fd270b1ee6abcaea97fea7ad"
"0402e8bd8ad6d77c88ac92040000",
"01000000000101db6b1b20aa0fd7b23880be2ecbd4a98130974cf4748fb66092ac4d3c"
"eb1a5477010000001716001479091972186c449eb1ded22b78e40d009bdf0089feffff"
"ff02b8b4eb0b000000001976a914a457b684d7f0d539a46a45bbc043f35b59d0d96388"
"ac0008af2f000000001976a914fd270b1ee6abcaea97fea7ad0402e8bd8ad6d77c88ac"
"02473044022047ac8e878352d3ebbde1c94ce3a10d057c24175747116f8288e5d794d1"
"2d482f0220217f36a485cae903c713331d877c1f64677e3622ad4010726870540656fe"
"9dcb012103ad1d8e89212f0b92c74d23bb710c00662ad1470198ac48c43f7d6f93a2a2"
"687392040000",
[(10, "a9144733f37cf4db86fbc2efed2500b4f4e49f31202387")], 1, 2, 1,
1170)
self.check_tx_can_be_signed(tx_u2, tx_s2, [
0xeb696a065ef48a2192da5b28b694f87544b30fae8327c4510137a922f32c6dcf
], ["001479091972186c449eb1ded22b78e40d009bdf0089"])
tx_u3, tx_s3 = self.check_bip143_tx(
"0100000002fe3dc9208094f3ffd12645477b3dc56f60ec4fa8e6f5d67c565d1c6b9216"
"b36e0000000000ffffffff0815cf020f013ed6cf91d29f4202e8a58726b1ac6c79da47"
"c23d1bee0a6925f80000000000ffffffff0100f2052a010000001976a914a30741f814"
"5e5acadf23f751864167f32e0963f788ac00000000",
"01000000000102fe3dc9208094f3ffd12645477b3dc56f60ec4fa8e6f5d67c565d1c6b"
"9216b36e000000004847304402200af4e47c9b9629dbecc21f73af989bdaa911f7e6f6"
"c2e9394588a3aa68f81e9902204f3fcf6ade7e5abb1295b6774c8e0abd94ae62217367"
"096bc02ee5e435b67da201ffffffff0815cf020f013ed6cf91d29f4202e8a58726b1ac"
"6c79da47c23d1bee0a6925f80000000000ffffffff0100f2052a010000001976a914a3"
"0741f8145e5acadf23f751864167f32e0963f788ac000347304402200de66acf452778"
"9bfda55fc5459e214fa6083f936b430a762c629656216805ac0220396f550692cd3471"
"71cbc1ef1f51e15282e837bb2b30860dc77c8f78bc8501e503473044022027dc95ad6b"
"740fe5129e7e62a75dd00f291a2aeb1200b84b09d9e3789406b6c002201a9ecd315dd6"
"a0e632ab20bbb98948bc0c6fb204f2c286963bb48517a7058e27034721026dccc749ad"
"c2a9d0d89497ac511f760f45c47dc5ed9cf352a58ac706453880aeadab210255a9626a"
"ebf5e29c0e6538428ba0d1dcf6ca98ffdf086aa8ced5e0d0215ea465ac00000000",
[(1.5625,
"21036d5c20fa14fb2f635474c1dc4ef5909d4568e5569b79fc94d3448486e14685f8ac"
),
(49,
"00205d1b56b63d714eebe542309525f484b7e9d6f686b3781b6f61ef925d66d6f6a0"
)], 2, 1, 1, 0)
tx_u4, tx_s4 = self.check_bip143_tx(
"0100000002e9b542c5176808107ff1df906f46bb1f2583b16112b95ee5380665ba7fcf"
"c0010000000000ffffffff80e68831516392fcd100d186b3c2c7b95c80b53c77e77c35"
"ba03a66b429a2a1b0000000000ffffffff0280969800000000001976a914de4b231626"
"ef508c9a74a8517e6783c0546d6b2888ac80969800000000001976a9146648a8cd4531"
"e1ec47f35916de8e259237294d1e88ac00000000",
"01000000000102e9b542c5176808107ff1df906f46bb1f2583b16112b95ee5380665ba"
"7fcfc0010000000000ffffffff80e68831516392fcd100d186b3c2c7b95c80b53c77e7"
"7c35ba03a66b429a2a1b0000000000ffffffff0280969800000000001976a914de4b23"
"1626ef508c9a74a8517e6783c0546d6b2888ac80969800000000001976a9146648a8cd"
"4531e1ec47f35916de8e259237294d1e88ac02483045022100f6a10b8604e6dc910194"
"b79ccfc93e1bc0ec7c03453caaa8987f7d6c3413566002206216229ede9b4d6ec2d325"
"be245c5b508ff0339bf1794078e20bfe0babc7ffe683270063ab68210392972e2eb617"
"b2388771abe27235fd5ac44af8e61693261550447a4c3e39da98ac0247304402200325"
"21802a76ad7bf74d0e2c218b72cf0cbc867066e2e53db905ba37f130397e02207709e2"
"188ed7f08f4c952d9d13986da504502b8c3be59617e043552f506c46ff83275163ab68"
"210392972e2eb617b2388771abe27235fd5ac44af8e61693261550447a4c3e39da98ac"
"00000000", [
(0.16777215,
"0020ba468eea561b26301e4cf69fa34bde4ad60c81e70f059f045ca9a79931004a4d"
),
(0.16777215,
"0020d9bbfbe56af7c4b7f960a70d7ea107156913d9e5a26b0a71429df5e097ca6537"
),
], 2, 2, 1, 0)
tx_u5, tx_s5 = self.check_bip143_tx(
"010000000136641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787"
"b96e0100000000ffffffff0200e9a435000000001976a914389ffce9cd9ae88dcc0631"
"e88a821ffdbe9bfe2688acc0832f05000000001976a9147480a33f950689af511e6e84"
"c138dbbd3c3ee41588ac00000000",
"0100000000010136641869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca2"
"9787b96e0100000023220020a16b5755f7f6f96dbd65f5f0d6ab9418b89af4b1f14a1b"
"b8a09062c35f0dcb54ffffffff0200e9a435000000001976a914389ffce9cd9ae88dcc"
"0631e88a821ffdbe9bfe2688acc0832f05000000001976a9147480a33f950689af511e"
"6e84c138dbbd3c3ee41588ac080047304402206ac44d672dac41f9b00e28f4df20c52e"
"eb087207e8d758d76d92c6fab3b73e2b0220367750dbbe19290069cba53d096f44530e"
"4f98acaa594810388cf7409a1870ce01473044022068c7946a43232757cbdf9176f009"
"a928e1cd9a1a8c212f15c1e11ac9f2925d9002205b75f937ff2f9f3c1246e547e54f62"
"e027f64eefa2695578cc6432cdabce271502473044022059ebf56d98010a932cf8ecfe"
"c54c48e6139ed6adb0728c09cbe1e4fa0915302e022007cd986c8fa870ff5d2b3a8913"
"9c9fe7e499259875357e20fcbb15571c76795403483045022100fbefd94bd0a488d50b"
"79102b5dad4ab6ced30c4069f1eaa69a4b5a763414067e02203156c6a5c9cf88f91265"
"f5a942e96213afae16d83321c8b31bb342142a14d16381483045022100a5263ea0553b"
"a89221984bd7f0b13613db16e7a70c549a86de0cc0444141a407022005c360ef0ae5a5"
"d4f9f2f87a56c1546cc8268cab08c73501d6b3be2e1e1a8a08824730440220525406a1"
"482936d5a21888260dc165497a90a15669636d8edca6b9fe490d309c022032af0c646a"
"34a44d1f4576bf6a4a74b67940f8faa84c7df9abe12a01a11e2b4783cf56210307b8ae"
"49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba32103b28f0c28"
"bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21034b8113d703"
"413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a21033400f6afecb8"
"33092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6d48b1131e94b"
"a04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b661b0b3302ee2"
"f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56ae00000000",
[(9.87654321, "a9149993a429037b5d912407a71c252019287b8d27a587")],
1, 2, 1, 0)
tx_u5prime = self.unsigned_copy(tx_s5)
tx_s_hex = tx_s5.as_hex()
tx_u5prime.set_unspents(tx_s5.unspents)
ss = [
"56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba3"
"2103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21"
"034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a2103"
"3400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6"
"d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b6"
"61b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56ae",
"0020a16b5755f7f6f96dbd65f5f0d6ab9418b89af4b1f14a1bb8a09062c35f0dcb54"
]
p2sh_lookup = build_p2sh_lookup([h2b(x) for x in ss])
for se, sighash_type in [
(0x730fff80e1413068a05b57d6a58261f07551163369787f349438ea38ca80fac6,
SIGHASH_ALL),
(0x11fa3d25a17cbc22b29c44a484ba552b5a53149d106d3d853e22fdd05a2d8bb3,
SIGHASH_NONE),
(0x77bf4141a87d55bdd7f3cd0bdccf6e9e642935fec45f2f30047be7b799120661,
SIGHASH_SINGLE),
(0x14af36970f5025ea3e8b5542c0f8ebe7763e674838d08808896b63c3351ffe49,
SIGHASH_ANYONECANPAY | SIGHASH_ALL),
(0xfe9a95c19eef81dde2b95c1284ef39be497d128e2aa46916fb02d552485e0323,
SIGHASH_ANYONECANPAY | SIGHASH_NONE),
(0x428a7aee9f0c2af0cd19af3cf1c78149951ea528726989b2e83e4778d2c3f890,
SIGHASH_ANYONECANPAY | SIGHASH_SINGLE),
]:
tx_u5prime.sign(hash_type=sighash_type,
hash160_lookup=build_hash160_lookup([se]),
p2sh_lookup=p2sh_lookup)
self.check_signed(tx_u5prime)
tx_hex = tx_u5prime.as_hex()
self.assertEqual(tx_hex, tx_s_hex)
self.assertEqual(
b2h(tx_s5.hash_prevouts(SIGHASH_ALL)),
"74afdc312af5183c4198a40ca3c1a275b485496dd3929bca388c4b5e31f7aaa0")
self.assertEqual(
b2h(tx_s5.hash_sequence(SIGHASH_ALL)),
"3bb13029ce7b1f559ef5e747fcac439f1455a2ec7c5f09b72290795e70665044")
self.assertEqual(
b2h(tx_s5.hash_outputs(SIGHASH_ALL, 0)),
"bc4d309071414bed932f98832b27b4d76dad7e6c1346f487a8fdbb8eb90307cc")
self.assertEqual(
b2h(tx_s5.hash_outputs(SIGHASH_SINGLE, 0)),
"9efe0c13a6b16c14a41b04ebe6a63f419bdacb2f8705b494a43063ca3cd4f708")
script = tx_s5.txs_in[0].witness[-1]
self.assertEqual(
b2h(
tx_s5.segwit_signature_preimage(script=script,
tx_in_idx=0,
hash_type=SIGHASH_ALL)),
"0100000074afdc312af5183c4198a40ca3c1a275b485496dd3929bca388c4b5e31f7aa"
"a03bb13029ce7b1f559ef5e747fcac439f1455a2ec7c5f09b72290795e706650443664"
"1869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e01000000cf"
"56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba3"
"2103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21"
"034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a2103"
"3400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6"
"d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b6"
"61b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56aeb168de"
"3a00000000ffffffffbc4d309071414bed932f98832b27b4d76dad7e6c1346f487a8fd"
"bb8eb90307cc0000000001000000")
self.assertEqual(
b2h(
tx_s5.segwit_signature_preimage(script=script,
tx_in_idx=0,
hash_type=SIGHASH_NONE)),
"0100000074afdc312af5183c4198a40ca3c1a275b485496dd3929bca388c4b5e31f7aa"
"a000000000000000000000000000000000000000000000000000000000000000003664"
"1869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e01000000cf"
"56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba3"
"2103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21"
"034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a2103"
"3400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6"
"d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b6"
"61b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56aeb168de"
"3a00000000ffffffff0000000000000000000000000000000000000000000000000000"
"0000000000000000000002000000")
self.assertEqual(
b2h(
tx_s5.segwit_signature_preimage(script=script,
tx_in_idx=0,
hash_type=SIGHASH_SINGLE)),
"0100000074afdc312af5183c4198a40ca3c1a275b485496dd3929bca388c4b5e31f7aa"
"a000000000000000000000000000000000000000000000000000000000000000003664"
"1869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e01000000cf"
"56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba3"
"2103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21"
"034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a2103"
"3400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6"
"d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b6"
"61b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56aeb168de"
"3a00000000ffffffff9efe0c13a6b16c14a41b04ebe6a63f419bdacb2f8705b494a430"
"63ca3cd4f7080000000003000000")
self.assertEqual(
b2h(
tx_s5.segwit_signature_preimage(script=script,
tx_in_idx=0,
hash_type=SIGHASH_ALL
| SIGHASH_ANYONECANPAY)),
"0100000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000003664"
"1869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e01000000cf"
"56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba3"
"2103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21"
"034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a2103"
"3400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6"
"d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b6"
"61b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56aeb168de"
"3a00000000ffffffffbc4d309071414bed932f98832b27b4d76dad7e6c1346f487a8fd"
"bb8eb90307cc0000000081000000")
self.assertEqual(
b2h(
tx_s5.segwit_signature_preimage(script=script,
tx_in_idx=0,
hash_type=SIGHASH_NONE
| SIGHASH_ANYONECANPAY)),
"0100000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000003664"
"1869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e01000000cf"
"56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba3"
"2103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21"
"034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a2103"
"3400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6"
"d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b6"
"61b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56aeb168de"
"3a00000000ffffffff0000000000000000000000000000000000000000000000000000"
"0000000000000000000082000000")
self.assertEqual(
b2h(
tx_s5.segwit_signature_preimage(script=script,
tx_in_idx=0,
hash_type=SIGHASH_SINGLE
| SIGHASH_ANYONECANPAY)),
"0100000000000000000000000000000000000000000000000000000000000000000000"
"0000000000000000000000000000000000000000000000000000000000000000003664"
"1869ca081e70f394c6948e8af409e18b619df2ed74aa106c1ca29787b96e01000000cf"
"56210307b8ae49ac90a048e9b53357a2354b3334e9c8bee813ecb98e99a7e07e8c3ba3"
"2103b28f0c28bfab54554ae8c658ac5c3e0ce6e79ad336331f78c428dd43eea8449b21"
"034b8113d703413d57761b8b9781957b8c0ac1dfe69f492580ca4195f50376ba4a2103"
"3400f6afecb833092a9a21cfdf1ed1376e58c5d1f47de74683123987e967a8f42103a6"
"d48b1131e94ba04d9737d61acdaa1322008af9602b3b14862c07a1789aac162102d8b6"
"61b0b3302ee2f162b09e07a55ad5dfbe673a9f01d9f0c19617681024306b56aeb168de"
"3a00000000ffffffff9efe0c13a6b16c14a41b04ebe6a63f419bdacb2f8705b494a430"
"63ca3cd4f7080000000083000000")
tx = Tx.from_hex(
"010000000169c12106097dc2e0526493ef67f21269fe888ef05c7a3a5dacab38e1ac83"
"87f14c1d000000ffffffff0101000000000000000000000000")
tx.set_witness(0, [
h2b(x) for x in [
"30450220487fb382c4974de3f7d834c1b617fe15860828c7f96454490edd6d891556dc"
"c9022100baf95feb48f845d5bfc9882eb6aeefa1bc3790e39f59eaa46ff7f15ae626c5"
"3e01",
"02a9781d66b61fb5a7ef00ac5ad5bc6ffc78be7b44a566e3c87870e1079368df4c",
"ad4830450220487fb382c4974de3f7d834c1b617fe15860828c7f96454490edd6d8915"
"56dcc9022100baf95feb48f845d5bfc9882eb6aeefa1bc3790e39f59eaa46ff7f15ae6"
"26c53e01"
]
])
tx = Tx.from_hex(
"0100000000010169c12106097dc2e0526493ef67f21269fe888ef05c7a3a5dacab38e1"
"ac8387f14c1d000000ffffffff01010000000000000000034830450220487fb382c497"
"4de3f7d834c1b617fe15860828c7f96454490edd6d891556dcc9022100baf95feb48f8"
"45d5bfc9882eb6aeefa1bc3790e39f59eaa46ff7f15ae626c53e012102a9781d66b61f"
"b5a7ef00ac5ad5bc6ffc78be7b44a566e3c87870e1079368df4c4aad4830450220487f"
"b382c4974de3f7d834c1b617fe15860828c7f96454490edd6d891556dcc9022100baf9"
"5feb48f845d5bfc9882eb6aeefa1bc3790e39f59eaa46ff7f15ae626c53e0100000000"
)
tx_hex = tx.as_hex()
print(tx)
print(tx_hex)
tx = Tx.from_hex(
"010000000169c12106097dc2e0526493ef67f21269fe888ef05c7a3a5dacab38e1ac83"
"87f14c1d000000ffffffff0101000000000000000000000000")
self.assertEqual(
tx_hex,
"0100000000010169c12106097dc2e0526493ef67f21269fe888ef05c7a3a5dacab38e1"
"ac8387f14c1d000000ffffffff01010000000000000000034830450220487fb382c497"
"4de3f7d834c1b617fe15860828c7f96454490edd6d891556dcc9022100baf95feb48f8"
"45d5bfc9882eb6aeefa1bc3790e39f59eaa46ff7f15ae626c53e012102a9781d66b61f"
"b5a7ef00ac5ad5bc6ffc78be7b44a566e3c87870e1079368df4c4aad4830450220487f"
"b382c4974de3f7d834c1b617fe15860828c7f96454490edd6d891556dcc9022100baf9"
"5feb48f845d5bfc9882eb6aeefa1bc3790e39f59eaa46ff7f15ae626c53e0100000000"
)
tx_u6, tx_s6 = self.check_bip143_tx(
"010000000169c12106097dc2e0526493ef67f21269fe888ef05c7a3a5dacab38e1ac83"
"87f14c1d000000ffffffff0101000000000000000000000000",
"0100000000010169c12106097dc2e0526493ef67f21269fe888ef05c7a3a5dacab38e1"
"ac8387f14c1d000000ffffffff01010000000000000000034830450220487fb382c497"
"4de3f7d834c1b617fe15860828c7f96454490edd6d891556dcc9022100baf95feb48f8"
"45d5bfc9882eb6aeefa1bc3790e39f59eaa46ff7f15ae626c53e012102a9781d66b61f"
"b5a7ef00ac5ad5bc6ffc78be7b44a566e3c87870e1079368df4c4aad4830450220487f"
"b382c4974de3f7d834c1b617fe15860828c7f96454490edd6d891556dcc9022100baf9"
"5feb48f845d5bfc9882eb6aeefa1bc3790e39f59eaa46ff7f15ae626c53e0100000000",
[(0.002,
"00209e1be07558ea5cc8e02ed1d80c0911048afad949affa36d5c3951e3159dbea19"
)], 1, 1, 1, 0)
tx_u7, tx_s7 = self.check_bip143_tx(
"01000000019275cb8d4a485ce95741c013f7c0d28722160008021bb469a11982d47a66"
"28964c1d000000ffffffff0101000000000000000000000000",
"010000000001019275cb8d4a485ce95741c013f7c0d28722160008021bb469a11982d4"
"7a6628964c1d000000ffffffff0101000000000000000007004830450220487fb382c4"
"974de3f7d834c1b617fe15860828c7f96454490edd6d891556dcc9022100baf95feb48"
"f845d5bfc9882eb6aeefa1bc3790e39f59eaa46ff7f15ae626c53e0148304502205286"
"f726690b2e9b0207f0345711e63fa7012045b9eb0f19c2458ce1db90cf43022100e89f"
"17f86abc5b149eba4115d4f128bcf45d77fb3ecdd34f594091340c0395960101022102"
"966f109c54e85d3aee8321301136cedeb9fc710fdef58a9de8a73942f8e567c021034f"
"fc99dd9a79dd3cb31e2ab3e0b09e0e67db41ac068c625cd1f491576016c84e9552af48"
"30450220487fb382c4974de3f7d834c1b617fe15860828c7f96454490edd6d891556dc"
"c9022100baf95feb48f845d5bfc9882eb6aeefa1bc3790e39f59eaa46ff7f15ae626c5"
"3e0148304502205286f726690b2e9b0207f0345711e63fa7012045b9eb0f19c2458ce1"
"db90cf43022100e89f17f86abc5b149eba4115d4f128bcf45d77fb3ecdd34f59409134"
"0c039596017500000000",
[(0.002,
"00209b66c15b4e0b4eb49fa877982cafded24859fe5b0e2dbfbe4f0df1de7743fd52"
)], 1, 1, 1, 0)
print(tx_s7.txs_in[0])
def test_validate(self):
# block 80971
block_80971_cs = '00000000001126456C67A1F5F0FF0268F53B4F22E0531DC70C7B69746AF69DAC'.lower(
)
block_80971_data = h2b(
"01000000950A1631FB9FAC411DFB173487B9E18018B7C6F7147E78C062584100000000"
"00A881352F97F14BF191B54915AE124E051B8FE6C3922C5082B34EAD503000FC34D891"
"974CED66471B4016850A04010000000100000000000000000000000000000000000000"
"00000000000000000000000000FFFFFFFF0804ED66471B02C301FFFFFFFF0100F2052A"
"01000000434104CB6B6B4EADC96C7D08B21B29D0ADA5F29F9378978CABDB602B8B65DA"
"08C8A93CAAB46F5ABD59889BAC704925942DD77A2116D10E0274CAD944C71D3D1A6705"
"70AC0000000001000000018C55ED829F16A4E43902940D3D33005264606D5F7D555B5F"
"67EE4C033390C2EB010000008A47304402202D1BF606648EDCDB124C1254930852D991"
"88E1231715031CBEAEA80CCFD2B39A02201FA9D6EE7A1763580E342474FC1AEF59B046"
"8F98479953437F525063E25675DE014104A01F763CFBF5E518C628939158AF3DC0CAAC"
"35C4BA7BC1CE8B7E634E8CDC44E15F0296B250282BD649BAA8398D199F2424FCDCD88D"
"3A9ED186E4FD3CB9BF57CFFFFFFFFF02404B4C00000000001976A9148156FF75BEF24B"
"35ACCE3C05289A2411E1B0E57988AC00AA38DF010000001976A914BC7E692A5FFE95A5"
"96712F5ED83393B3002E452E88AC0000000001000000019C97AFDF6C9A31FFA86D71EA"
"79A079001E2B59EE408FD418498219400639AC0A010000008B4830450220363CFFAE09"
"599397B21E6D8A8073FB1DFBE06B6ACDD0F2F7D3FEA86CA9C3F605022100FA255A6ED2"
"3FD825C759EF1A885A31CAD0989606CA8A3A16657D50FE3CEF5828014104FF444BAC08"
"308B9EC97F56A652AD8866E0BA804DA97868909999566CB377F4A2C8F1000E83B49686"
"8F3A282E1A34DF78565B65C15C3FA21A0763FD81A3DFBBB6FFFFFFFF02C05EECDE0100"
"00001976A914588554E6CC64E7343D77117DA7E01357A6111B7988AC404B4C00000000"
"001976A914CA6EB218592F289999F13916EE32829AD587DBC588AC0000000001000000"
"01BEF5C9225CB9FE3DEF929423FA36AAD9980B9D6F8F3070001ACF3A5FB389A69F0000"
"00004A493046022100FB23B1E2F2FB8B96E04D220D385346290A9349F89BBBC5C225D5"
"A56D931F8A8E022100F298EB28294B90C1BAF319DAB713E7CA721AAADD8FCC15F849DE"
"7B0A6CF5412101FFFFFFFF0100F2052A010000001976A9146DDEA8071439951115469D"
"0D2E2B80ECBCDD48DB88AC00000000")
# block 80974
block_80974_cs = '0000000000089F7910F6755C10EA2795EC368A29B435D80770AD78493A6FECF1'.lower(
)
block_80974_data = h2b(
"010000007480150B299A16BBCE5CCDB1D1BBC65CFC5893B01E6619107C552000000000"
"007900A2B203D24C69710AB6A94BEB937E1B1ADD64C2327E268D8C3E5F8B41DBED8796"
"974CED66471B204C324703010000000100000000000000000000000000000000000000"
"00000000000000000000000000FFFFFFFF0804ED66471B024001FFFFFFFF0100F2052A"
"010000004341045FEE68BAB9915C4EDCA4C680420ED28BBC369ED84D48AC178E1F5F7E"
"EAC455BBE270DABA06802145854B5E29F0A7F816E2DF906E0FE4F6D5B4C9B92940E4F0"
"EDAC000000000100000001F7B30415D1A7BF6DB91CB2A272767C6799D721A4178AA328"
"E0D77C199CB3B57F010000008A4730440220556F61B84F16E637836D2E74B8CB784DE4"
"0C28FE3EF93CCB7406504EE9C7CAA5022043BD4749D4F3F7F831AC696748AD8D8E79AE"
"B4A1C539E742AA3256910FC88E170141049A414D94345712893A828DE57B4C2054E2F5"
"96CDCA9D0B4451BA1CA5F8847830B9BE6E196450E6ABB21C540EA31BE310271AA00A49"
"ED0BA930743D1ED465BAD0FFFFFFFF0200E1F505000000001976A914529A63393D63E9"
"80ACE6FA885C5A89E4F27AA08988ACC0ADA41A000000001976A9145D17976537F30886"
"5ED533CCCFDD76558CA3C8F088AC00000000010000000165148D894D3922EF5FFDA962"
"BE26016635C933D470C8B0AB7618E869E3F70E3C000000008B48304502207F5779EBF4"
"834FEAEFF4D250898324EB5C0833B16D7AF4C1CB0F66F50FCF6E85022100B78A65377F"
"D018281E77285EFC31E5B9BA7CB7E20E015CF6B7FA3E4A466DD195014104072AD79E0A"
"A38C05FA33DD185F84C17F611E58A8658CE996D8B04395B99C7BE36529CAB7606900A0"
"CD5A7AEBC6B233EA8E0FE60943054C63620E05E5B85F0426FFFFFFFF02404B4C000000"
"00001976A914D4CAA8447532CA8EE4C80A1AE1D230A01E22BFDB88AC8013A0DE010000"
"001976A9149661A79AE1F6D487AF3420C13E649D6DF3747FC288AC00000000")
block_80971 = Block.parse(io.BytesIO(block_80971_data))
self.assertEqual(block_80971.id(), block_80971_cs)
block_80974 = Block.parse(io.BytesIO(block_80974_data))
self.assertEqual(block_80974.id(), block_80974_cs)
tx_db = {tx.hash(): tx for tx in block_80971.txs}
tx_to_validate = block_80974.txs[2]
self.assertEqual(
"OP_DUP OP_HASH160 [d4caa8447532ca8ee4c80a1ae1d230a01e22bfdb] OP_EQUALVERIFY OP_CHECKSIG",
tools.disassemble(tx_to_validate.txs_out[0].script))
self.assertEqual(
tx_to_validate.id(),
"7c4f5385050c18aa8df2ba50da566bbab68635999cc99b75124863da1594195b")
tx_to_validate.unspents_from_db(tx_db)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)
# now, let's corrupt the Tx and see what happens
tx_out = tx_to_validate.txs_out[1]
disassembly = tools.disassemble(tx_out.script)
tx_out.script = tools.compile(disassembly)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)
disassembly = disassembly.replace(
"9661a79ae1f6d487af3420c13e649d6df3747fc2",
"9661a79ae1f6d487af3420c13e649d6df3747fc3")
tx_out.script = tools.compile(disassembly)
self.assertEqual(tx_to_validate.bad_signature_count(), 1)
self.assertFalse(tx_to_validate.is_signature_ok(0))
def test_validate_two_inputs(self):
def tx_from_b64(h):
f = io.BytesIO(binascii.a2b_base64(h.encode("utf8")))
return Tx.parse(f)
# c9989d984c97128b03b9f118481c631c584f7aa42b578dbea6194148701b053d
# This is the one we're going to validate. It has inputs from
# tx_1 = b52201c2741d410b70688335afebba0d58f8675fa9b6c8c54becb0d7c0a75983
# and tx_2 = 72151f65db1d8594df90778639a4c0c17c1e303af01de0d04af8fac13854bbfd
TX_0_HEX = (
"AQAAAAKDWafA17DsS8XItqlfZ/hYDbrrrzWDaHALQR10wgEitQAAAACLSDBFAiAnyvQ1P7"
"b8+84JbBUbE1Xtgrd0KNpD4eyVTNU/burbtgIhAOS8T1TrhXkGXQTGbLSEJy5uvZMGEzOj"
"ITxO+DrykiPlAUEE3yJcIB5OCpaDjrop+N3bm8h9PKw8bF/YB4v3yD+VeQf4fXdUZ9hJJS"
"nFeJ+QeJrC7q3Y23QSYeYbW/AfA3D5G//////9u1Q4wfr4StDgHfA6MB58wcCkOYZ3kN+U"
"hR3bZR8VcgAAAACLSDBFAiAN6ZQr+9HTgmF57EsPyXIhQ6J5M4lgwlj/tJTShZ+toQIhAL"
"0U1i9yiCEm75uCEp8uRaySqS7P4x7A+L2Vr5kS+7ANAUEEkSqVI6gw1scM0GuJWgMh4jpW"
"KJA0yOl03uQaV/jHURn+HswOIORzvsG9qQY1/9BZgDPaMuI5U5JlyA3WkhLxgf////8Ctk"
"SUzxAAAAAZdqkULXTu3lp2t/wMSuvqbifOSj9/kvmIrAAoa+4AAAAAGXapFF3ySpVdjz9V"
"8fRKvzDqXQRcmowSiKwAAAAA")
TX_1_HEX = (
"AQAAAAEL3YmFDcZpf4SH7uN1IBmMoBd4OhmTp4EAQ8A0ZQ3tiwAAAACKRzBEAiA4Fkl8lk"
"JSeLtWHsp1j0h7y0KKFmqxhDR0CK0HnmZWBQIgDSTDenor3zbNqTs+FApeDl8DKCz1xGQC"
"JQN0/sp00VABQQQzSNc33wdDXA/F9y9/hAR88q6Se6vRCHEC7dYgbIp1pgxqGzrWXQroGk"
"QLhnAbn/fDhUoVbCgM/UHXYmjXlhdO/////wI3HGlfEQAAABl2qRRM+dhUVUjeAlb0jEsH"
"JrFClGGSZ4isMAYVCgAAAAAZdqkUgnSLXoYTeOKFFRdtLYxWcGZ2Ht2IrAAAAAA=")
TX_2_HEX = (
"AQAAAAFDjBbw61AYUWMx+3moZ2vb9dvLKydOSFIwcfBTjG0QSgEAAACKRzBEAiA5WWKhR4"
"8OI60ZDCXnOru/FH6NvuTGhRLggjbpJB2dhgIgKp0FFL0ClSCxxqGjYneDinvgROGSw6Dt"
"Vtvflrhaom8BQQR50YjAg1e5qRkP4ER29ec5jKfzk3DHJhS7Si0sEbvNIJMfjjbZfZWtJi"
"15wHZhuHh4e3G6SWMdJLHH5pgbseFh/////wLPE5deAAAAABl2qRSmRdbMvv5fEbgFD1Yk"
"taBU9zQTW4iswJ7mBQAAAAAZdqkU4E5+Is4tr+8bPU6ELYHSvz/Ng0eIrAAAAAA=")
tx_0 = tx_from_b64(TX_0_HEX)
self.assertEqual(
tx_0.id(),
"c9989d984c97128b03b9f118481c631c584f7aa42b578dbea6194148701b053d")
tx_1 = tx_from_b64(TX_1_HEX)
self.assertEqual(
tx_1.id(),
"b52201c2741d410b70688335afebba0d58f8675fa9b6c8c54becb0d7c0a75983")
tx_2 = tx_from_b64(TX_2_HEX)
self.assertEqual(
tx_2.id(),
"72151f65db1d8594df90778639a4c0c17c1e303af01de0d04af8fac13854bbfd")
TX_DB = {tx.hash(): tx for tx in [tx_0, tx_1, tx_2]}
tx_to_validate = tx_0
self.assertEqual(
"OP_DUP OP_HASH160 [2d74eede5a76b7fc0c4aebea6e27ce4a3f7f92f9] OP_EQUALVERIFY OP_CHECKSIG",
tools.disassemble(tx_to_validate.txs_out[0].script))
self.assertEqual(
tx_to_validate.id(),
"c9989d984c97128b03b9f118481c631c584f7aa42b578dbea6194148701b053d")
tx_to_validate.unspents_from_db(TX_DB)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)
# now let's mess with signatures
disassembly = tools.disassemble(tx_to_validate.txs_in[0].script)
tx_to_validate.txs_in[0].script = tools.compile(disassembly)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)
disassembly = disassembly.replace("353fb6fcfbce09", "353fb6fcfbce19")
tx_to_validate.txs_in[0].script = tools.compile(disassembly)
self.assertEqual(tx_to_validate.bad_signature_count(), 1)
self.assertFalse(tx_to_validate.is_signature_ok(0))
tx_to_validate = tx_from_b64(TX_0_HEX)
tx_to_validate.unspents_from_db(TX_DB)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)
disassembly = tools.disassemble(tx_to_validate.txs_in[1].script)
disassembly = disassembly.replace("960c258ffb494d2859f",
"960d258ffb494d2859f")
tx_to_validate.txs_in[1].script = tools.compile(disassembly)
self.assertEqual(tx_to_validate.bad_signature_count(), 1)
self.assertFalse(tx_to_validate.is_signature_ok(1))
# futz with signature on tx_1
tx_to_validate = tx_from_b64(TX_0_HEX)
original_tx_hash = tx_1.hash()
disassembly = tools.disassemble(tx_1.txs_out[0].script)
disassembly = disassembly.replace(
"4cf9d8545548de0256f48c4b0726b14294619267",
"4cf9d8545548de1256f48c4b0726b14294619267")
tx_1.txs_out[0].script = tools.compile(disassembly)
TX_DB[original_tx_hash] = tx_1
tx_to_validate.unspents_from_db(TX_DB, ignore_missing=True)
self.assertEqual(tx_to_validate.bad_signature_count(), 1)
self.assertFalse(tx_to_validate.is_signature_ok(0, ))
# fix it up again
TX_DB[original_tx_hash] = tx_from_b64(TX_1_HEX)
tx_to_validate.unspents_from_db(TX_DB)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)
# futz with signature on tx_2
tx_to_validate = tx_from_b64(TX_0_HEX)
original_tx_hash = tx_2.hash()
disassembly = tools.disassemble(tx_2.txs_out[0].script)
disassembly = disassembly.replace(
"a645d6ccbefe5f11b8050f5624b5a054f734135b",
"a665d6ccbefe5f11b8050f5624b5a054f734135b")
tx_2.txs_out[0].script = tools.compile(disassembly)
TX_DB[original_tx_hash] = tx_2
tx_to_validate.unspents_from_db(TX_DB, ignore_missing=True)
self.assertEqual(tx_to_validate.bad_signature_count(), 1)
self.assertFalse(tx_to_validate.is_signature_ok(1))
# fix it up again
TX_DB[original_tx_hash] = tx_from_b64(TX_2_HEX)
tx_to_validate.unspents_from_db(TX_DB)
self.assertEqual(tx_to_validate.bad_signature_count(), 0)