(self)
| 26 | self.skip_if_no_wallet() |
| 27 | |
| 28 | def run_test(self): |
| 29 | |
| 30 | # First, quick check that CSV is ACTIVE at genesis |
| 31 | assert_equal(self.nodes[0].getblockcount(), 0) |
| 32 | assert softfork_active(self.nodes[0], 'csv') |
| 33 | |
| 34 | peer = self.nodes[0].add_p2p_connection(P2PInterface()) |
| 35 | |
| 36 | self.nodeaddress = self.nodes[0].getnewaddress() |
| 37 | |
| 38 | self.log.info("Test that blocks past the genesis block must be at least version 4") |
| 39 | |
| 40 | # Create a v3 block |
| 41 | tip = self.nodes[0].getbestblockhash() |
| 42 | block_time = self.nodes[0].getblockheader(tip)['mediantime'] + 1 |
| 43 | block = create_block(int(tip, 16), create_coinbase(1), block_time) |
| 44 | block.nVersion = 3 |
| 45 | block.solve() |
| 46 | |
| 47 | # The best block should not have changed, because... |
| 48 | assert_equal(self.nodes[0].getbestblockhash(), tip) |
| 49 | |
| 50 | # ... we rejected it because it is v3 |
| 51 | with self.nodes[0].assert_debug_log(expected_msgs=['{}, bad-version(0x00000003)'.format(block.hash)]): |
| 52 | # Send it to the node |
| 53 | peer.send_and_ping(msg_block(block)) |
| 54 | |
| 55 | self.log.info("Test that a version 4 block with a valid-according-to-CLTV transaction is accepted") |
| 56 | |
| 57 | # Generate 100 blocks so that first coinbase matures |
| 58 | generated_blocks = self.generate(self.nodes[0], 100) |
| 59 | spendable_coinbase_txid = self.nodes[0].getblock(generated_blocks[0])['tx'][0] |
| 60 | coinbase_value = self.nodes[0].decoderawtransaction(self.nodes[0].gettransaction(spendable_coinbase_txid)["hex"])["vout"][0]["value"] |
| 61 | tip = generated_blocks[-1] |
| 62 | |
| 63 | # Construct a v4 block |
| 64 | block_time = self.nodes[0].getblockheader(tip)['mediantime'] + 1 |
| 65 | block = create_block(int(tip, 16), create_coinbase(len(generated_blocks) + 1), block_time) |
| 66 | block.nVersion = 4 |
| 67 | |
| 68 | # Create a CLTV transaction |
| 69 | spendtx = create_transaction(self.nodes[0], spendable_coinbase_txid, |
| 70 | self.nodeaddress, amount=1.0, fee=coinbase_value-1, locktime=1) |
| 71 | spendtx.nLockTime = 1 |
| 72 | spendtx.vin[0].scriptSig = CScript([OP_TRUE, OP_CHECKLOCKTIMEVERIFY, OP_DROP] + list(CScript(spendtx.vin[0].scriptSig))) |
| 73 | spendtx.rehash() |
| 74 | |
| 75 | # Add the CLTV transaction and prepare for sending |
| 76 | block.vtx.append(spendtx) |
| 77 | block.hashMerkleRoot = block.calc_merkle_root() |
| 78 | block.solve() |
| 79 | |
| 80 | # Send block and check that it becomes new best block |
| 81 | peer.send_and_ping(msg_block(block)) |
| 82 | assert_equal(int(self.nodes[0].getbestblockhash(), 16), block.sha256) |
| 83 | |
| 84 | if __name__ == '__main__': |
| 85 | BlockV4Test().main() |
nothing calls this directly
no test coverage detected