Retry on sync-standby change check

Signed-off-by: Marcelo Henrique Neppel <[email protected]>

tests/integration/ha_tests/test_async_replication.py

@@ -438,9 +438,11 @@ async def test_async_replication_failover_in_main_cluster(
         )
 
     # Check that the sync-standby unit is not the same as before.
-    new_sync_standby = await get_sync_standby(ops_test, first_model, DATABASE_APP_NAME)
-    logger.info(f"New sync-standby: {new_sync_standby}")
-    assert new_sync_standby != sync_standby, "Sync-standby is the same as before"
+    for attempt in Retrying(stop=stop_after_delay(90), wait=wait_fixed(10), reraise=True):
+        with attempt:
+            new_sync_standby = await get_sync_standby(ops_test, first_model, DATABASE_APP_NAME)
+            logger.info(f"New sync-standby: {new_sync_standby}")
+            assert new_sync_standby != sync_standby, "Sync-standby is the same as before"
 
     logger.info("Ensure continuous_writes after the crashed unit")
     await are_writes_increasing(ops_test)