def test_address_to_public_key_hash():
assert address_to_public_key_hash(BITCOIN_ADDRESS) == PUBKEY_HASH
assert address_to_public_key_hash(
BITCOIN_ADDRESS_COMPRESSED) == PUBKEY_HASH_COMPRESSED
with pytest.raises(ValueError):
address_to_public_key_hash(BITCOIN_ADDRESS_PAY2SH)
with pytest.raises(ValueError):
address_to_public_key_hash(BITCOIN_ADDRESS_TEST_PAY2SH)
def construct_output_block(outputs, custom_pushdata=False):
output_block = b''
for data in outputs:
dest, amount = data
# Real recipient
if amount:
script = (OP_DUP + OP_HASH160 + OP_PUSH_20 +
address_to_public_key_hash(dest) + OP_EQUALVERIFY +
OP_CHECKSIG)
output_block += amount.to_bytes(8, byteorder='little')
# Blockchain storage
else:
if custom_pushdata is False:
script = OP_FALSE + OP_RETURN + get_op_pushdata_code(
dest) + dest
output_block += b'\x00\x00\x00\x00\x00\x00\x00\x00'
elif custom_pushdata is True:
# manual control over number of bytes in each batch of pushdata
if type(dest) != bytes:
raise TypeError("custom pushdata must be of type: bytes")
else:
script = (OP_FALSE + OP_RETURN + dest)
output_block += b'\x00\x00\x00\x00\x00\x00\x00\x00'
# Script length in wiki is "Var_int" but there's a note of "modern BitcoinQT" using a more compact "CVarInt"
output_block += int_to_varint(len(script))
output_block += script
return output_block
def scriptcode(self):
self._scriptcode = (OP_DUP + OP_HASH160 + OP_PUSH_20 +
address_to_public_key_hash(self.address) +
OP_EQUALVERIFY + OP_CHECKSIG)
return self._scriptcode
