fix: Test compatibility with django CMS 5 (#453)

* fix: Test compatibility with django CMS 5

* Update tests/test_integration_with_core.py

Author: fsbraun

tests/test_handlers.py

@@ -93,7 +93,7 @@ def test_delete_plugin(self):
 
             with self.login_user_context(self.get_superuser()):
                 response = self.client.post(endpoint, data)
-                self.assertEqual(response.status_code, 302)
+                self.assertIn(response.status_code, (200, 302))  # 302 for django CMS < 5
 
         version = Version.objects.get(pk=version.pk)
         self.assertEqual(version.modified, dt)

tests/test_integration_with_core.py

@@ -277,7 +277,11 @@ def setUp(self):
             content__language="fr",
             state=constants.ARCHIVED,
         )
-        self.page.languages = "en,fr"
+        try:
+            self.page.languages = "en,fr"
+        except AttributeError:
+            # The property does not have a setter in django CMS 5+
+            pass
         self.page.save()