ensure all viewsets have filter and search and add tests (#2946)

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

authentik/api/tests/test_viewsets.py

@@ -0,0 +1,29 @@
+"""authentik API Modelviewset tests"""
+from typing import Callable
+
+from django.test import TestCase
+from rest_framework.viewsets import ModelViewSet, ReadOnlyModelViewSet
+
+from authentik.api.v3.urls import router
+
+
+class TestModelViewSets(TestCase):
+    """Test Viewset"""
+
+
+def viewset_tester_factory(test_viewset: type[ModelViewSet]) -> Callable:
+    """Test Viewset"""
+
+    def tester(self: TestModelViewSets):
+        self.assertIsNotNone(getattr(test_viewset, "search_fields", None))
+        filterset_class = getattr(test_viewset, "filterset_class", None)
+        if not filterset_class:
+            self.assertIsNotNone(getattr(test_viewset, "filterset_fields", None))
+
+    return tester
+
+
+for _, viewset, _ in router.registry:
+    if not issubclass(viewset, (ModelViewSet, ReadOnlyModelViewSet)):
+        continue
+    setattr(TestModelViewSets, f"test_viewset_{viewset.__name__}", viewset_tester_factory(viewset))