modify p2p_feefilter test to catch rounding error

This commit is contained in:
Gregory Sanders 2019-08-21 16:36:42 -04:00
parent 6a51f79517
commit eb7b781659

View file

@ -41,6 +41,12 @@ class TestP2PConn(P2PInterface):
class FeeFilterTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 2
# We lower the various required feerates for this test
# to catch a corner-case where feefilter used to slightly undercut
# mempool and wallet feerate calculation based on GetFee
# rounding down 3 places, leading to stranded transactions.
# See issue #16499
self.extra_args = [["-minrelaytxfee=0.00000100", "-mintxfee=0.00000100"]]*self.num_nodes
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
@ -54,22 +60,25 @@ class FeeFilterTest(BitcoinTestFramework):
self.nodes[0].add_p2p_connection(TestP2PConn())
# Test that invs are received for all txs at feerate of 20 sat/byte
node1.settxfee(Decimal("0.00020000"))
# Test that invs are received by test connection for all txs at
# feerate of .2 sat/byte
node1.settxfee(Decimal("0.00000200"))
txids = [node1.sendtoaddress(node1.getnewaddress(), 1) for x in range(3)]
assert allInvsMatch(txids, self.nodes[0].p2p)
self.nodes[0].p2p.clear_invs()
# Set a filter of 15 sat/byte
self.nodes[0].p2p.send_and_ping(msg_feefilter(15000))
# Set a filter of .15 sat/byte on test connection
self.nodes[0].p2p.send_and_ping(msg_feefilter(150))
# Test that txs are still being received (paying 20 sat/byte)
# Test that txs are still being received by test connection (paying .15 sat/byte)
node1.settxfee(Decimal("0.00000150"))
txids = [node1.sendtoaddress(node1.getnewaddress(), 1) for x in range(3)]
assert allInvsMatch(txids, self.nodes[0].p2p)
self.nodes[0].p2p.clear_invs()
# Change tx fee rate to 10 sat/byte and test they are no longer received
node1.settxfee(Decimal("0.00010000"))
# Change tx fee rate to .1 sat/byte and test they are no longer received
# by the test connection
node1.settxfee(Decimal("0.00000100"))
[node1.sendtoaddress(node1.getnewaddress(), 1) for x in range(3)]
self.sync_mempools() # must be sure node 0 has received all txs