test/pybind: fix test_rbd.TestClone.test_trash_snapshot

Fixes: http://tracker.ceph.com/issues/25114
Signed-off-by: Mykola Golub <mgolub@suse.com>
(cherry picked from commit 84a6385)

src/test/pybind/test_rbd.py

@@ -1379,12 +1379,14 @@ def test_trash_snapshot(self):
         rados.conf_set("rbd_default_clone_format", "auto")
 
         self.image.remove_snap('snap2')
-        self.rbd.remove(ioctx, clone_name)
 
         snaps = [s for s in self.image.list_snaps() if s['name'] != 'snap1']
         eq([RBD_SNAP_NAMESPACE_TYPE_TRASH], [s['namespace'] for s in snaps])
         eq([{'original_name' : 'snap2'}], [s['trash'] for s in snaps])
 
+        self.rbd.remove(ioctx, clone_name)
+        eq([], [s for s in self.image.list_snaps() if s['name'] != 'snap1'])
+
 class TestExclusiveLock(object):
 
     @require_features([RBD_FEATURE_EXCLUSIVE_LOCK])