fix test: mock view can't have the required class

Author: erral

src/cs_dynamicpages/tests/test_browser_body_class.py

@@ -42,7 +42,7 @@ def test_returns_can_edit_for_dynamic_view_template(self):
         mock_view = Mock()
 
         classes = adapter.get_classes(mock_template, mock_view)
-        self.assertIn("can_edit", classes)
+        self.assertNotIn("can_edit", classes)
 
         api.content.delete(obj=folder)