feat: Add tests for filter presets save/load/delete behavior in SearchFilterWidget

src/search_filter_ui.py

@@ -43,6 +43,8 @@ class SearchFilterWidget:
         self.is_visible = False
         self._ui_initialized = False
         self.frame = None
+        # May be created in _setup_ui; keep defined for headless/test usage
+        self.status_label = None
 
         # Debouncing mechanism to reduce filter update frequency
         self._update_timer = None
@@ -430,6 +432,9 @@ class SearchFilterWidget:
 
     def _update_status(self) -> None:
         """Update filter status display."""
+        # If UI hasn't been set up yet (e.g., during headless tests), skip.
+        if not getattr(self, "status_label", None):
+            return
         summary = self.data_filter.get_filter_summary()
 
         if not summary["has_filters"]: