Wait for D-Bus to settle in metadata tests

Signed-off-by: mulhern <[email protected]>

testlib/infra.py

@@ -221,7 +221,6 @@ class PoolMetadataMonitor(unittest.TestCase):
     Manage verification of consistency of pool-level metadata.
     """
 
-    def run_check(self):
     def _check_thin_meta_allocations(self, metadata):
         """
         Check whether sizes of thin meta and thin meta spare match.
@@ -241,10 +240,17 @@ def _check_thin_meta_allocations(self, metadata):
             "total size of thin meta spare device.",
         )
 
+    def run_check(self, stop_time):
         """
         Run the check.
+
+        :param int stop_time: the time the test completed
         """
         if PoolMetadataMonitor.verify:  # pylint: disable=no-member
+
+            # Wait for D-Bus to settle, so D-Bus and metadata can be compared
+            time.sleep(sleep_time(stop_time, 16))
+
             for object_path, _ in StratisDbus.pool_list():
                 (current, current_return_code, current_message) = (
                     StratisDbus.pool_get_metadata(object_path)
@@ -589,7 +595,7 @@ def tearDown(self):
 
         FilesystemSymlinkMonitor.run_check(self, stop_time)
 
-        PoolMetadataMonitor.run_check(self)
+        PoolMetadataMonitor.run_check(self, stop_time)
 
     @staticmethod
     def set_from_post_test_check_option(post_test_check):