[PR #10115/86507e8a backport][stable-9] lxc: fix unit tests (#10117)

lxc: fix unit tests (#10115)

Don't compare strings passed through set_option()/get_option() with 'is'.

(cherry picked from commit 86507e8aca)

Co-authored-by: Felix Fontein <felix@fontein.de>

tests/unit/plugins/connection/test_lxc.py

@@ -117,14 +117,14 @@ class TestLXCConnectionClass():
 
         # first call initializes the connection
         conn._connect()
-        assert conn.container_name is container1_name
+        assert conn.container_name == container1_name
         assert conn.container is not None
         assert conn.container.name == container1_name
         container1 = conn.container
 
         # second call is basically a no-op
         conn._connect()
-        assert conn.container_name is container1_name
+        assert conn.container_name == container1_name
         assert conn.container is container1
         assert conn.container.name == container1_name