qa: Add missing syncwithvalidationinterfacequeue to tests

1 files changed, 5 insertions, 4 deletions

diff --git a/test/functional/mempool_persist.py b/test/functional/mempool_persist.py
index 31a96ec60e..17f0967219 100755
--- a/test/functional/mempool_persist.py
+++ b/test/functional/mempool_persist.py
@@ -66,16 +66,17 @@ class MempoolPersistTest(BitcoinTestFramework):
 
         self.log.debug("Stop-start the nodes. Verify that node0 has the transactions in its mempool and node1 does not. Verify that node2 calculates its balance correctly after loading wallet transactions.")
         self.stop_nodes()
+        self.start_node(1)  # Give this one a head-start, so we can be "extra-sure" that it didn't load anything later
         self.start_node(0)
-        self.start_node(1)
         self.start_node(2)
         # Give bitcoind a second to reload the mempool
-        time.sleep(1)
-        wait_until(lambda: len(self.nodes[0].getrawmempool()) == 5)
-        wait_until(lambda: len(self.nodes[2].getrawmempool()) == 5)
+        wait_until(lambda: len(self.nodes[0].getrawmempool()) == 5, timeout=1)
+        wait_until(lambda: len(self.nodes[2].getrawmempool()) == 5, timeout=1)
+        # The others have loaded their mempool. If node_1 loaded anything, we'd probably notice by now:
         assert_equal(len(self.nodes[1].getrawmempool()), 0)
 
         # Verify accounting of mempool transactions after restart is correct
+        self.nodes[2].syncwithvalidationinterfacequeue()  # Flush mempool to wallet
         assert_equal(node2_balance, self.nodes[2].getbalance())
 
         self.log.debug("Stop-start node0 with -persistmempool=0. Verify that it doesn't load its mempool.dat file.")