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-rwxr-xr-xtest/functional/mempool_limit.py56
1 files changed, 6 insertions, 50 deletions
diff --git a/test/functional/mempool_limit.py b/test/functional/mempool_limit.py
index 6215610c31..d46924f4ce 100755
--- a/test/functional/mempool_limit.py
+++ b/test/functional/mempool_limit.py
@@ -6,7 +6,9 @@
from decimal import Decimal
-from test_framework.blocktools import COINBASE_MATURITY
+from test_framework.mempool_util import (
+ fill_mempool,
+)
from test_framework.p2p import P2PTxInvStore
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
@@ -14,8 +16,6 @@ from test_framework.util import (
assert_fee_amount,
assert_greater_than,
assert_raises_rpc_error,
- create_lots_of_big_transactions,
- gen_return_txouts,
)
from test_framework.wallet import (
COIN,
@@ -34,50 +34,6 @@ class MempoolLimitTest(BitcoinTestFramework):
]]
self.supports_cli = False
- def fill_mempool(self):
- """Fill mempool until eviction."""
- self.log.info("Fill the mempool until eviction is triggered and the mempoolminfee rises")
- txouts = gen_return_txouts()
- node = self.nodes[0]
- miniwallet = self.wallet
- relayfee = node.getnetworkinfo()['relayfee']
-
- tx_batch_size = 1
- num_of_batches = 75
- # Generate UTXOs to flood the mempool
- # 1 to create a tx initially that will be evicted from the mempool later
- # 75 transactions each with a fee rate higher than the previous one
- # And 1 more to verify that this tx does not get added to the mempool with a fee rate less than the mempoolminfee
- # And 2 more for the package cpfp test
- self.generate(miniwallet, 1 + (num_of_batches * tx_batch_size))
-
- # Mine 99 blocks so that the UTXOs are allowed to be spent
- self.generate(node, COINBASE_MATURITY - 1)
-
- self.log.debug("Create a mempool tx that will be evicted")
- tx_to_be_evicted_id = miniwallet.send_self_transfer(from_node=node, fee_rate=relayfee)["txid"]
-
- # Increase the tx fee rate to give the subsequent transactions a higher priority in the mempool
- # The tx has an approx. vsize of 65k, i.e. multiplying the previous fee rate (in sats/kvB)
- # by 130 should result in a fee that corresponds to 2x of that fee rate
- base_fee = relayfee * 130
-
- self.log.debug("Fill up the mempool with txs with higher fee rate")
- with node.assert_debug_log(["rolling minimum fee bumped"]):
- for batch_of_txid in range(num_of_batches):
- fee = (batch_of_txid + 1) * base_fee
- create_lots_of_big_transactions(miniwallet, node, fee, tx_batch_size, txouts)
-
- self.log.debug("The tx should be evicted by now")
- # The number of transactions created should be greater than the ones present in the mempool
- assert_greater_than(tx_batch_size * num_of_batches, len(node.getrawmempool()))
- # Initial tx created should not be present in the mempool anymore as it had a lower fee rate
- assert tx_to_be_evicted_id not in node.getrawmempool()
-
- self.log.debug("Check that mempoolminfee is larger than minrelaytxfee")
- assert_equal(node.getmempoolinfo()['minrelaytxfee'], Decimal('0.00001000'))
- assert_greater_than(node.getmempoolinfo()['mempoolminfee'], Decimal('0.00001000'))
-
def test_rbf_carveout_disallowed(self):
node = self.nodes[0]
@@ -139,7 +95,7 @@ class MempoolLimitTest(BitcoinTestFramework):
assert_equal(node.getmempoolinfo()['minrelaytxfee'], Decimal('0.00001000'))
assert_equal(node.getmempoolinfo()['mempoolminfee'], Decimal('0.00001000'))
- self.fill_mempool()
+ fill_mempool(self, node)
current_info = node.getmempoolinfo()
mempoolmin_feerate = current_info["mempoolminfee"]
@@ -229,7 +185,7 @@ class MempoolLimitTest(BitcoinTestFramework):
assert_equal(node.getmempoolinfo()['minrelaytxfee'], Decimal('0.00001000'))
assert_equal(node.getmempoolinfo()['mempoolminfee'], Decimal('0.00001000'))
- self.fill_mempool()
+ fill_mempool(self, node)
current_info = node.getmempoolinfo()
mempoolmin_feerate = current_info["mempoolminfee"]
@@ -303,7 +259,7 @@ class MempoolLimitTest(BitcoinTestFramework):
assert_equal(node.getmempoolinfo()['minrelaytxfee'], Decimal('0.00001000'))
assert_equal(node.getmempoolinfo()['mempoolminfee'], Decimal('0.00001000'))
- self.fill_mempool()
+ fill_mempool(self, node)
# Deliberately try to create a tx with a fee less than the minimum mempool fee to assert that it does not get added to the mempool
self.log.info('Create a mempool tx that will not pass mempoolminfee')