needed_assertion.diff

diff --git a/test/unit/common/test_db_replicator.py b/test/unit/common/test_db_replicator.py
index a1a18fe..e8c5d19 100644
--- a/test/unit/common/test_db_replicator.py
+++ b/test/unit/common/test_db_replicator.py
@@ -662,6 +662,12 @@ class TestDBReplicator(unittest.TestCase):
         replicator._replicate_object('0', '/path/to/file',
                                      replicator.ring.devs[3]['id'])
         self.assertEqual(4, replicator._repl_to_node.call_count)
+        # even if it's the last handoff it works to keep 3 replicas
+        # 2 primaries + 1 handoff
+        replicator._repl_to_node = mock.Mock(side_effect=[DriveNotMounted()])
+        replicator._replicate_object('0', '/path/to/file',
+                                     replicator.ring.devs[-1]['id'])
+        self.assertEqual(4, replicator._repl_to_node.call_count)
         # with two DriveNotMounted exceptions called on +2 more replica keeping
         # durability
         replicator._repl_to_node = mock.Mock(