def test_block():
transactions = []
for x in range(10):
tx_in = TxIn(
prevout=OutPoint(),
scriptSig=script.serialize([f"{x}{x}"]),
sequence=0xFFFFFFFF,
txinwitness=[],
)
tx_out = TxOut(
value=50 * 10**8,
scriptPubKey=script.serialize([f"{x}{x}"]),
)
tx = TxData(
version=1,
locktime=0,
vin=[tx_in],
vout=[tx_out],
)
transactions.append(tx)
header = BlockHeader(
version=1,
previousblockhash="00" * 32,
merkleroot="00" * 32,
time=1,
bits=b"\x23\x00\x00\x01",
nonce=1,
)
header.merkleroot = _generate_merkle_root(transactions)
msg = Block(BlockData(header, transactions))
msg_bytes = bytes.fromhex("00" * 4) + msg.serialize()
assert msg == Block.deserialize(get_payload(msg_bytes)[1])
def create_genesis(time, nonce, difficulty, version, reward):
script_sig = script.serialize(
[
"FFFF001D",
b"\x04",
"The Times 03/Jan/2009 Chancellor on brink of second bailout for banks".encode(),
]
)
script_pub_key = script.serialize(
[
"04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f",
"OP_CHECKSIG",
]
)
tx_in = TxIn(
prevout=OutPoint(),
scriptSig=script_sig,
sequence=0xFFFFFFFF,
txinwitness=[],
)
tx_out = TxOut(
value=reward,
scriptPubKey=script_pub_key,
)
tx = Tx(
version=1,
locktime=0,
vin=[tx_in],
vout=[tx_out],
)
header = BlockHeader(
version=version,
previousblockhash="00" * 32,
merkleroot="00" * 32,
time=time,
bits=difficulty.to_bytes(4, "big"),
nonce=nonce,
)
header.merkleroot = _generate_merkle_root([tx])
return header