chore(tests): Restructure API test files for clarity

Moved `AppTest` class to a separate file `test_app.py` for better
organization. Simplified imports by removing unused dependencies in
`test_access_lists.py`.

Author: pheus

netbox_acls/tests/api/test_access_lists.py

@@ -1,21 +1,11 @@
 from dcim.models import Device, DeviceRole, DeviceType, Manufacturer, Site
 from django.contrib.contenttypes.models import ContentType
-from django.urls import reverse
-from rest_framework import status
-from utilities.testing import APITestCase, APIViewTestCases
+from utilities.testing import APIViewTestCases
 
 from netbox_acls.choices import *
 from netbox_acls.models import *
 
 
-class AppTest(APITestCase):
-    def test_root(self):
-        url = reverse("plugins-api:netbox_acls-api:api-root")
-        response = self.client.get(f"{url}?format=api", **self.header)
-
-        self.assertEqual(response.status_code, status.HTTP_200_OK)
-
-
 class ACLTestCase(
     APIViewTestCases.APIViewTestCase,
 ):

netbox_acls/tests/api/test_app.py

@@ -0,0 +1,12 @@
+from django.urls import reverse
+from rest_framework import status
+from utilities.testing import APITestCase
+
+
+class AppTest(APITestCase):
+    def test_root(self):
+        """Test the API root view."""
+        url = reverse("plugins-api:netbox_acls-api:api-root")
+        response = self.client.get(f"{url}?format=api", **self.header)
+
+        self.assertEqual(response.status_code, status.HTTP_200_OK)