You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
53 lines
2.2 KiB
53 lines
2.2 KiB
#!/usr/bin/env python3 |
|
# Copyright (c) 2014-2017 The Bitcoin Core developers |
|
# Distributed under the MIT software license, see the accompanying |
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php. |
|
"""Test spending coinbase transactions. |
|
|
|
The coinbase transaction in block N can appear in block |
|
N+100... so is valid in the mempool when the best block |
|
height is N+99. |
|
This test makes sure coinbase spends that will be mature |
|
in the next block are accepted into the memory pool, |
|
but less mature coinbase spends are NOT. |
|
""" |
|
|
|
from test_framework.test_framework import BitcoinTestFramework |
|
from test_framework.util import * |
|
|
|
# Create one-input, one-output, no-fee transaction: |
|
class MempoolSpendCoinbaseTest(BitcoinTestFramework): |
|
def set_test_params(self): |
|
self.num_nodes = 1 |
|
self.extra_args = [["-checkmempool"]] |
|
|
|
def run_test(self): |
|
chain_height = self.nodes[0].getblockcount() |
|
assert_equal(chain_height, 200) |
|
node0_address = self.nodes[0].getnewaddress() |
|
|
|
# Coinbase at height chain_height-100+1 ok in mempool, should |
|
# get mined. Coinbase at height chain_height-100+2 is |
|
# is too immature to spend. |
|
b = [ self.nodes[0].getblockhash(n) for n in range(101, 103) ] |
|
coinbase_txids = [ self.nodes[0].getblock(h)['tx'][0] for h in b ] |
|
spends_raw = [ create_tx(self.nodes[0], txid, node0_address, 499.99) for txid in coinbase_txids ] |
|
|
|
spend_101_id = self.nodes[0].sendrawtransaction(spends_raw[0]) |
|
|
|
# coinbase at height 102 should be too immature to spend |
|
assert_raises_rpc_error(-26,"bad-txns-premature-spend-of-coinbase", self.nodes[0].sendrawtransaction, spends_raw[1]) |
|
|
|
# mempool should have just spend_101: |
|
assert_equal(self.nodes[0].getrawmempool(), [ spend_101_id ]) |
|
|
|
# mine a block, spend_101 should get confirmed |
|
self.nodes[0].generate(1) |
|
assert_equal(set(self.nodes[0].getrawmempool()), set()) |
|
|
|
# ... and now height 102 can be spent: |
|
spend_102_id = self.nodes[0].sendrawtransaction(spends_raw[1]) |
|
assert_equal(self.nodes[0].getrawmempool(), [ spend_102_id ]) |
|
|
|
if __name__ == '__main__': |
|
MempoolSpendCoinbaseTest().main()
|
|
|