diff options
Diffstat (limited to 'test/functional/test_framework/blocktools.py')
| -rw-r--r-- | test/functional/test_framework/blocktools.py | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/test/functional/test_framework/blocktools.py b/test/functional/test_framework/blocktools.py index 2c9a0857df..5dcf516dc6 100644 --- a/test/functional/test_framework/blocktools.py +++ b/test/functional/test_framework/blocktools.py @@ -25,6 +25,13 @@ def create_block(hashprev, coinbase, nTime=None): # From BIP141 WITNESS_COMMITMENT_HEADER = b"\xaa\x21\xa9\xed" + +def get_witness_script(witness_root, witness_nonce): + witness_commitment = uint256_from_str(hash256(ser_uint256(witness_root)+ser_uint256(witness_nonce))) + output_data = WITNESS_COMMITMENT_HEADER + ser_uint256(witness_commitment) + return CScript([OP_RETURN, output_data]) + + # According to BIP141, blocks with witness rules active must commit to the # hash of all in-block transactions including witness. def add_witness_commitment(block, nonce=0): @@ -32,14 +39,12 @@ def add_witness_commitment(block, nonce=0): # transactions, with witnesses. witness_nonce = nonce witness_root = block.calc_witness_merkle_root() - witness_commitment = uint256_from_str(hash256(ser_uint256(witness_root)+ser_uint256(witness_nonce))) # witness_nonce should go to coinbase witness. block.vtx[0].wit.vtxinwit = [CTxInWitness()] block.vtx[0].wit.vtxinwit[0].scriptWitness.stack = [ser_uint256(witness_nonce)] # witness commitment is the last OP_RETURN output in coinbase - output_data = WITNESS_COMMITMENT_HEADER + ser_uint256(witness_commitment) - block.vtx[0].vout.append(CTxOut(0, CScript([OP_RETURN, output_data]))) + block.vtx[0].vout.append(CTxOut(0, get_witness_script(witness_root, witness_nonce))) block.vtx[0].rehash() block.hashMerkleRoot = block.calc_merkle_root() block.rehash() |