Move admin test base to a central place

src/core/testcases.py

@@ -0,0 +1,59 @@
+from unittest import SkipTest
+
+from django.test import Client, TestCase
+from django.urls import reverse
+
+from users.factories import UserFactory
+
+
+class AdminTestCase(TestCase):
+    app_name = None
+    model_name = None
+
+    @classmethod
+    def setUpClass(cls):
+        if cls.__name__.endswith("AdminTestCase"):
+            skip_msg = f"{cls.__name__} is an abstract base class"
+            raise SkipTest(skip_msg)
+        else:
+            super(__class__, cls).setUpClass()
+
+    def setUp(self) -> None:
+        self.user = UserFactory(is_staff=True, is_superuser=True)
+
+        self.client = Client()
+        self.client.force_login(user=self.user)
+
+        add_viewname = f"admin:{self.app_name}_{self.model_name}_add"
+        self.add_url = reverse(add_viewname)
+
+        changelist_viewname = f"admin:{self.app_name}_{self.model_name}_changelist"
+        self.changelist_url = reverse(changelist_viewname)
+
+    def test_add_url(self):
+        self.assertEqual(
+            self.add_url,
+            f"/admin/{self.app_name}/{self.model_name}/add/",
+        )
+
+    def test_add(self):
+        response = self.client.get(self.add_url)
+
+        self.assertEqual(
+            response.status_code,
+            200,
+        )
+
+    def test_changelist_url(self):
+        self.assertEqual(
+            self.changelist_url,
+            f"/admin/{self.app_name}/{self.model_name}/",
+        )
+
+    def test_changelist(self):
+        response = self.client.get(self.changelist_url)
+
+        self.assertEqual(
+            response.status_code,
+            200,
+        )

src/snippets/admin/tests.py

@@ -1,26 +1,12 @@
-from django.test import Client, TestCase, tag
-from django.urls import reverse
+from django.test import tag
 
-from users.factories import UserFactory
+from core.testcases import AdminTestCase
 
 
-@tag("admin", "snippet")
-class SnippetAdminTest(TestCase):
-    def setUp(self) -> None:
-        self.user = UserFactory(is_staff=True, is_superuser=True)
-
-        self.client = Client()
-        self.client.force_login(user=self.user)
-
-        self.viewname = "admin:snippets_snippet_changelist"
-        self.url = reverse(self.viewname)
+class SnippetsAppAdminTestCase(AdminTestCase):
+    app_name = "snippets"
 
-    def test_url(self):
-        expected_url = "/admin/snippets/snippet/"
 
-        self.assertEqual(self.url, expected_url)
-
-    def test_changelist(self):
-        response = self.client.get(self.url)
-
-        self.assertEqual(response.status_code, 200)
+@tag("admin", "snippet")
+class SnippetAdminTest(SnippetsAppAdminTestCase):
+    model_name = "snippet"

src/users/admin/tests.py

@@ -1,26 +1,12 @@
-from django.test import Client, TestCase, tag
-from django.urls import reverse
+from django.test import tag
 
-from users.factories import UserFactory
+from core.testcases import AdminTestCase
 
 
-@tag("admin", "snippet")
-class UserAdminTest(TestCase):
-    def setUp(self) -> None:
-        self.user = UserFactory(is_staff=True, is_superuser=True)
+class UsersAppAdminTestCase(AdminTestCase):
+    app_name = "users"
 
-        self.client = Client()
-        self.client.force_login(user=self.user)
 
-        self.viewname = "admin:users_user_changelist"
-        self.url = reverse(self.viewname)
-
-    def test_url(self):
-        expected_url = "/admin/users/user/"
-
-        self.assertEqual(self.url, expected_url)
-
-    def test_changelist(self):
-        response = self.client.get(self.url)
-
-        self.assertEqual(response.status_code, 200)
+@tag("admin", "user")
+class UserAdminTest(UsersAppAdminTestCase):
+    model_name = "user"