add a test to make sure tools functions actually get called

example_project/test_app/tests.py

@@ -1,5 +1,7 @@
 from django.test import TestCase
 
+from example_project.polls.models import Choice
+
 
 class LoggedInTestCase(TestCase):
     def setUp(self):
@@ -19,6 +21,15 @@ def test_configured_mixin_works(self):
         self.assertEqual(response.status_code, 200)
         self.assertIn('objectactions', response.context_data)
 
+    def test_tool_func_gets_executed(self):
+        c = Choice.objects.get(pk=1)
+        votes = c.votes
+        response = self.client.get('/admin/polls/choice/1/tools/increment_vote/')
+        self.assertEqual(response.status_code, 302)
+        self.assertTrue(response['location'].endswith('/admin/polls/choice/1/'))
+        c = Choice.objects.get(pk=1)
+        self.assertEqual(c.votes, votes + 1)
+
     def test_tool_can_return_httpresponse(self):
         # we know this url works because of fixtures
         url = 'http://localhost:8000/admin/polls/choice/2/tools/edit_poll/'