'Ensure GET on the add_view works.'

def test_basic_add_GET(self):

    add_url = reverse('admin_custom_urls:admin_custom_urls_action_add')
    self.assertTrue(add_url.endswith('/!add/'))
    response = self.client.get(add_url)
    self.assertIsInstance(response, TemplateResponse)
    self.assertEqual(response.status_code, 200)
