def run_test(self):
node0 = self.nodes[0]
node1 = self.nodes[1]
node0.importprivkey(mandatory_privkey)
self.log.info(
"generatetoaddress: Making blocks of various kinds, checking for rejection"
)
# Create valid blocks to get out of IBD and get some funds (subsidy goes to permitted addr)
node0.generatetoaddress(101, mandatory_address)
# Generating for another address will not work
assert_raises_rpc_error(
-1, "CreateNewBlock: TestBlockValidity failed: bad-coinbase-txos",
node0.generatetoaddress, 1, node0.getnewaddress())
# Have non-mandatory node make a template
self.sync_all()
tmpl = node1.getblocktemplate()
# We make a block with OP_TRUE coinbase output that will fail on node0
coinbase_tx = create_coinbase(height=int(tmpl["height"]))
# sequence numbers must not be max for nLockTime to have effect
coinbase_tx.vin[0].nSequence = 2**32 - 2
coinbase_tx.rehash()
block = CBlock()
block.nVersion = tmpl["version"]
block.hashPrevBlock = int(tmpl["previousblockhash"], 16)
block.nTime = tmpl["curtime"]
block.nBits = int(tmpl["bits"], 16)
block.nNonce = 0
block.proof = CProof(bytearray.fromhex('51'))
block.vtx = [coinbase_tx]
block.block_height = int(tmpl["height"])
block.hashMerkleRoot = block.calc_merkle_root()
self.log.info("getblocktemplate: Test block on both nodes")
assert_template(node1, block, None)
assert_template(node0, block, 'bad-coinbase-txos')
self.log.info("getblocktemplate: Test non-subsidy block on both nodes")
# Without block reward anything goes, this allows commitment outputs like segwit
coinbase_tx.vout[0].nValue = CTxOutValue(0)
coinbase_tx.vout[0].scriptPubKey = CScript([OP_RETURN, b'\xff'])
coinbase_tx.rehash()
block.vtx = [coinbase_tx]
assert_template(node0, block, None)
assert_template(node1, block, None)
#
# Also test that coinbases can't have fees.
self.sync_all()
tmpl = node1.getblocktemplate()
coinbase_tx = create_coinbase(height=int(tmpl["height"]))
# sequence numbers must not be max for nLockTime to have effect
coinbase_tx.vin[0].nSequence = 2**32 - 2
# Add fee output.
coinbase_tx.vout[0].nValue.setToAmount(
coinbase_tx.vout[0].nValue.getAmount() - 1)
coinbase_tx.vout.append(CTxOut(1))
coinbase_tx.rehash()
block = CBlock()
block.nVersion = tmpl["version"]
block.hashPrevBlock = int(tmpl["previousblockhash"], 16)
block.nTime = tmpl["curtime"]
block.nBits = int(tmpl["bits"], 16)
block.nNonce = 0
block.proof = CProof(bytearray.fromhex('51'))
block.vtx = [coinbase_tx]
block.block_height = int(tmpl["height"])
block.hashMerkleRoot = block.calc_merkle_root()
# should not be accepted
assert_template(node0, block, "bad-cb-fee")
assert_template(node1, block, "bad-cb-fee")
def run_test(self):
# Block will have 10 satoshi output, node 1 will ban
addr = self.nodes[0].getnewaddress()
sub_block = self.nodes[0].generatetoaddress(1, addr)
raw_coinbase = self.nodes[0].getrawtransaction(
self.nodes[0].getblock(sub_block[0])["tx"][0], False, sub_block[0])
decoded_coinbase = self.nodes[0].decoderawtransaction(raw_coinbase)
found_ten = False
for vout in decoded_coinbase["vout"]:
if vout["value"] == Decimal('0.00000010') and found_ten == False:
found_ten = True
elif vout["value"] == 0:
continue
else:
raise Exception("Invalid output amount in coinbase")
assert (found_ten)
# Block will have 0 satoshis outputs only at height 1
no_sub_block = self.nodes[1].generatetoaddress(1, addr)
raw_coinbase = self.nodes[1].getrawtransaction(
self.nodes[1].getblock(no_sub_block[0])["tx"][0], False,
no_sub_block[0])
decoded_coinbase = self.nodes[1].decoderawtransaction(raw_coinbase)
for vout in decoded_coinbase["vout"]:
if vout["value"] != 0:
raise Exception("Invalid output amount in coinbase")
tmpl = self.nodes[0].getblocktemplate({"rules": ["segwit"]})
# Template with invalid amount(50*COIN) will be invalid in both
coinbase_tx = create_coinbase(height=int(tmpl["height"]))
block = CBlock()
block.nVersion = tmpl["version"]
block.hashPrevBlock = int(tmpl["previousblockhash"], 16)
block.nTime = tmpl["curtime"]
block.nBits = int(tmpl["bits"], 16)
block.nNonce = 0
block.block_height = int(tmpl["height"])
block.proof = CProof(bytearray.fromhex('51'))
block.vtx = [coinbase_tx]
assert_template(self.nodes[0], block, "bad-cb-amount")
# Set to proper value, resubmit
block.vtx[0].vout[0].nValue = CTxOutValue(10)
block.vtx[0].sha256 = None
assert_template(self.nodes[0], block, None)
# No subsidy also allowed
block.vtx[0].vout[0].nValue = CTxOutValue(0)
block.vtx[0].sha256 = None
#assert_template(self.nodes[0], block, None) # ELEMENTS: 0-value outputs not allowed
# Change previous blockhash to other nodes' genesis block and reward to 1, test again
block.hashPrevBlock = int(
self.nodes[1].getblockhash(self.nodes[1].getblockcount()), 16)
block.vtx[0].vout[0].nValue = CTxOutValue(1)
block.vtx[0].sha256 = None
assert_template(self.nodes[1], block, "bad-cb-amount")
block.vtx[0].vout[0].nValue = CTxOutValue(0)
block.vtx[0].sha256 = None