aboutsummaryrefslogtreecommitdiff
path: root/test
diff options
context:
space:
mode:
Diffstat (limited to 'test')
-rwxr-xr-xtest/functional/mempool_expiry.py100
-rwxr-xr-xtest/functional/test_runner.py1
2 files changed, 101 insertions, 0 deletions
diff --git a/test/functional/mempool_expiry.py b/test/functional/mempool_expiry.py
new file mode 100755
index 0000000000..8b9b7b155a
--- /dev/null
+++ b/test/functional/mempool_expiry.py
@@ -0,0 +1,100 @@
+#!/usr/bin/env python3
+# Copyright (c) 2020 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Tests that a mempool transaction expires after a given timeout and that its
+children are removed as well.
+
+Both the default expiry timeout defined by DEFAULT_MEMPOOL_EXPIRY and a user
+definable expiry timeout via the '-mempoolexpiry=<n>' command line argument
+(<n> is the timeout in hours) are tested.
+"""
+
+from datetime import timedelta
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import (
+ assert_equal,
+ assert_raises_rpc_error,
+ find_vout_for_address,
+)
+
+DEFAULT_MEMPOOL_EXPIRY = 336 # hours
+CUSTOM_MEMPOOL_EXPIRY = 10 # hours
+
+
+class MempoolExpiryTest(BitcoinTestFramework):
+ def set_test_params(self):
+ self.num_nodes = 1
+
+ def skip_test_if_missing_module(self):
+ self.skip_if_no_wallet()
+
+ def test_transaction_expiry(self, timeout):
+ """Tests that a transaction expires after the expiry timeout and its
+ children are removed as well."""
+ node = self.nodes[0]
+
+ # Send a parent transaction that will expire.
+ parent_address = node.getnewaddress()
+ parent_txid = node.sendtoaddress(parent_address, 1.0)
+
+ # Set the mocktime to the arrival time of the parent transaction.
+ entry_time = node.getmempoolentry(parent_txid)['time']
+ node.setmocktime(entry_time)
+
+ # Create child transaction spending the parent transaction
+ vout = find_vout_for_address(node, parent_txid, parent_address)
+ inputs = [{'txid': parent_txid, 'vout': vout}]
+ outputs = {node.getnewaddress(): 0.99}
+ child_raw = node.createrawtransaction(inputs, outputs)
+ child_signed = node.signrawtransactionwithwallet(child_raw)['hex']
+
+ # Let half of the timeout elapse and broadcast the child transaction.
+ half_expiry_time = entry_time + int(60 * 60 * timeout/2)
+ node.setmocktime(half_expiry_time)
+ child_txid = node.sendrawtransaction(child_signed)
+ self.log.info('Broadcast child transaction after {} hours.'.format(
+ timedelta(seconds=(half_expiry_time-entry_time))))
+
+ # Let most of the timeout elapse and check that the parent tx is still
+ # in the mempool.
+ nearly_expiry_time = entry_time + 60 * 60 * timeout - 5
+ node.setmocktime(nearly_expiry_time)
+ # Expiry of mempool transactions is only checked when a new transaction
+ # is added to the to the mempool.
+ node.sendtoaddress(node.getnewaddress(), 1.0)
+ self.log.info('Test parent tx not expired after {} hours.'.format(
+ timedelta(seconds=(nearly_expiry_time-entry_time))))
+ assert_equal(entry_time, node.getmempoolentry(parent_txid)['time'])
+
+ # Transaction should be evicted from the mempool after the expiry time
+ # has passed.
+ expiry_time = entry_time + 60 * 60 * timeout + 5
+ node.setmocktime(expiry_time)
+ # Expiry of mempool transactions is only checked when a new transaction
+ # is added to the to the mempool.
+ node.sendtoaddress(node.getnewaddress(), 1.0)
+ self.log.info('Test parent tx expiry after {} hours.'.format(
+ timedelta(seconds=(expiry_time-entry_time))))
+ assert_raises_rpc_error(-5, 'Transaction not in mempool',
+ node.getmempoolentry, parent_txid)
+
+ # The child transaction should be removed from the mempool as well.
+ self.log.info('Test child tx is evicted as well.')
+ assert_raises_rpc_error(-5, 'Transaction not in mempool',
+ node.getmempoolentry, child_txid)
+
+ def run_test(self):
+ self.log.info('Test default mempool expiry timeout of %d hours.' %
+ DEFAULT_MEMPOOL_EXPIRY)
+ self.test_transaction_expiry(DEFAULT_MEMPOOL_EXPIRY)
+
+ self.log.info('Test custom mempool expiry timeout of %d hours.' %
+ CUSTOM_MEMPOOL_EXPIRY)
+ self.restart_node(0, ['-mempoolexpiry=%d' % CUSTOM_MEMPOOL_EXPIRY])
+ self.test_transaction_expiry(CUSTOM_MEMPOOL_EXPIRY)
+
+
+if __name__ == '__main__':
+ MempoolExpiryTest().main()
diff --git a/test/functional/test_runner.py b/test/functional/test_runner.py
index ea8a340081..06d939afb7 100755
--- a/test/functional/test_runner.py
+++ b/test/functional/test_runner.py
@@ -175,6 +175,7 @@ BASE_SCRIPTS = [
'wallet_balance.py',
'feature_nulldummy.py',
'mempool_accept.py',
+ 'mempool_expiry.py',
'wallet_import_rescan.py',
'wallet_import_with_label.py',
'rpc_bind.py --ipv4',