def test_p2sh() -> None:
# https://medium.com/@darosior/bitcoin-raw-transactions-part-2-p2sh-94df206fee8d
network = "mainnet"
address = "37k7toV1Nv4DfmQbmZ8KuZDQCYK9x5KpzP"
script_pub_key = serialize([
"OP_2DUP",
"OP_EQUAL",
"OP_NOT",
"OP_VERIFY",
"OP_SHA1",
"OP_SWAP",
"OP_SHA1",
"OP_EQUAL",
])
assert script_pub_key.hex() == "6e879169a77ca787"
assert address == b58.p2sh(script_pub_key, network)
script_hash = hash160(script_pub_key)
assert ("p2sh", script_hash, network) == b58.h160_from_address(address)
assert ("p2sh", script_hash,
network) == b58.h160_from_address(" " + address + " ")
assert script_hash.hex() == "4266fc6f2c2861d7fe229b279a79803afca7ba34"
script_sig: List[Command] = ["OP_HASH160", script_hash.hex(), "OP_EQUAL"]
serialize(script_sig)
def test_p2sh() -> None:
# self-consistency
pub_key = "02 cc71eb30d653c0c3163990c47b976f3fb3f37cccdcbedb169a1dfef58bbfbfaf"
redeem_script = ScriptPubKey.p2pkh(pub_key).script
payload = hash160(redeem_script)
script_pub_key = serialize(["OP_HASH160", payload, "OP_EQUAL"])
assert_p2sh(script_pub_key)
assert script_pub_key == ScriptPubKey.p2sh(redeem_script).script
assert ("p2sh", payload) == type_and_payload(script_pub_key)
# base58 address
network = "mainnet"
addr = b58.p2sh(redeem_script, network)
assert addr == address(script_pub_key, network)
assert addr == b58.address_from_h160("p2sh", payload, network)
# back from the address to the script_pub_key
assert script_pub_key == ScriptPubKey.from_address(addr).script
assert network == ScriptPubKey.from_address(addr).network
# documented test case: https://learnmeabitcoin.com/guide/p2sh
payload = bytes.fromhex("748284390f9e263a4b766a75d0633c50426eb875")
script_pub_key = bytes.fromhex("a914") + payload + bytes.fromhex("87")
assert_p2sh(script_pub_key)
addr = "3CK4fEwbMP7heJarmU4eqA3sMbVJyEnU3V"
assert addr == address(script_pub_key, network)
assert script_pub_key == ScriptPubKey.from_address(addr).script
assert network == ScriptPubKey.from_address(addr).network
err_msg = "missing final OP_EQUAL"
with pytest.raises(BTClibValueError, match=err_msg):
assert_p2sh(script_pub_key[:-1] + b"\x40")
err_msg = "missing leading OP_HASH160"
with pytest.raises(BTClibValueError, match=err_msg):
assert_p2sh(b"\x40" + script_pub_key[1:])
err_msg = "invalid redeem script hash length marker: "
with pytest.raises(BTClibValueError, match=err_msg):
assert_p2sh(script_pub_key[:1] + b"\x40" + script_pub_key[2:])
def test_bip67() -> None:
"BIP67 test vectors https://en.bitcoin.it/wiki/BIP_0067"
data_folder = path.join(path.dirname(__file__), "_data")
filename = path.join(data_folder, "bip67_test_vectors.json")
with open(filename, "r") as file_:
# json.dump(test_vectors, f, indent=4)
test_vectors = json.load(file_)
m = 2
for i in test_vectors:
keys, addr = test_vectors[i]
script_pub_key = ScriptPubKey.p2ms(m, keys, lexi_sort=True).script
assert is_p2ms(script_pub_key)
assert address(script_pub_key) == ""
script_type, payload = type_and_payload(script_pub_key)
assert script_type == "p2ms"
assert payload == script_pub_key[:-1]
errmsg = f"Test vector #{i}"
assert addr == b58.p2sh(script_pub_key), errmsg