Differential D1144 Diff 3018 test/functional/abc-p2p-fullblocktest.py

Changeset View

Standalone View

test/functional/abc-p2p-fullblocktest.py

Show First 20 Lines • Show All 84 Lines • ▼ Show 20 Lines	def next_block(self, number, spend=None, script=CScript([OP_TRUE]), block_size=0, extra_sigops=0):
# We need to have something to spend to fill the block.		# We need to have something to spend to fill the block.
assert_equal(block_size, 0)		assert_equal(block_size, 0)
block = create_block(base_block_hash, coinbase, block_time)		block = create_block(base_block_hash, coinbase, block_time)
else:		else:
# all but one satoshi to fees		# all but one satoshi to fees
coinbase.vout[0].nValue += spend.tx.vout[spend.n].nValue - 1		coinbase.vout[0].nValue += spend.tx.vout[spend.n].nValue - 1
coinbase.rehash()		coinbase.rehash()
block = create_block(base_block_hash, coinbase, block_time)		block = create_block(base_block_hash, coinbase, block_time)
# spend 1 satoshi
tx = CTransaction()
tx.vin.append(CTxIn(COutPoint(spend.tx.sha256, spend.n)))
# Make sure we have plenty engough to spend going forward.		# Make sure we have plenty engough to spend going forward.
spendable_outputs = deque([])		spendable_outputs = deque([spend])

def add_spendable_outputs(tx):		def get_base_transaction():
for i in range(8):		# Create the new transaction
		tx = CTransaction()
		# Spend from one of the spendable outputs
		spend = spendable_outputs.popleft()
		tx.vin.append(CTxIn(COutPoint(spend.tx.sha256, spend.n)))
		# Add spendable outputs
		for i in range(4):
tx.vout.append(CTxOut(0, CScript([OP_TRUE])))		tx.vout.append(CTxOut(0, CScript([OP_TRUE])))
spendable_outputs.append(PreviousSpendableOutput(tx, i))		spendable_outputs.append(PreviousSpendableOutput(tx, i))
add_spendable_outputs(tx)		return tx

		tx = get_base_transaction()

# Make it the same format as transaction added for padding and save the size.		# Make it the same format as transaction added for padding and save the size.
# It's missing the padding output, so we add a constant to account for it.		# It's missing the padding output, so we add a constant to account for it.
tx.rehash()		tx.rehash()
base_tx_size = len(tx.serialize()) + 18		base_tx_size = len(tx.serialize()) + 18

# If a specific script is required, add it.		# If a specific script is required, add it.
if script != None:		if script != None:
Show All 12 Lines	def next_block(self, number, spend=None, script=CScript([OP_TRUE]), block_size=0, extra_sigops=0):
while current_block_size < block_size:		while current_block_size < block_size:
# We will add a new transaction. That means the size of		# We will add a new transaction. That means the size of
# the field enumerating how many transaction go in the block		# the field enumerating how many transaction go in the block
# may change.		# may change.
current_block_size -= len(ser_compact_size(len(block.vtx)))		current_block_size -= len(ser_compact_size(len(block.vtx)))
current_block_size += len(ser_compact_size(len(block.vtx) + 1))		current_block_size += len(ser_compact_size(len(block.vtx) + 1))

# Create the new transaction		# Create the new transaction
tx = CTransaction()		tx = get_base_transaction()
# Spend from one of the spendable outputs
spend = spendable_outputs.popleft()
tx.vin.append(CTxIn(COutPoint(spend.tx.sha256, spend.n)))
# Add spendable outputs
add_spendable_outputs(tx)

# Add padding to fill the block.		# Add padding to fill the block.
script_length = block_size - current_block_size - base_tx_size		script_length = block_size - current_block_size - base_tx_size
if script_length > 510000:		if script_length > 510000:
		if script_length < 1000000:
		# Make sure we don't find ourselves in a position where we
		# need to generate a transaction smaller than what we expected.
		script_length = script_length // 2
		else:
script_length = 500000		script_length = 500000
tx_sigops = min(extra_sigops, script_length,		tx_sigops = min(extra_sigops, script_length,
MAX_TX_SIGOPS_COUNT)		MAX_TX_SIGOPS_COUNT)
extra_sigops -= tx_sigops		extra_sigops -= tx_sigops
script_pad_len = script_length - tx_sigops		script_pad_len = script_length - tx_sigops
script_output = CScript(		script_output = CScript(
[b'\x00' * script_pad_len] + [OP_CHECKSIG] * tx_sigops)		[b'\x00' * script_pad_len] + [OP_CHECKSIG] * tx_sigops)
tx.vout.append(CTxOut(0, script_output))		tx.vout.append(CTxOut(0, script_output))

▲ Show 20 Lines • Show All 236 Lines • Show Last 20 Lines