1 files changed, 9 insertions, 0 deletions
diff --git a/tests/test_authentication.py b/tests/test_authentication.py
index 04c5782e..91e49f9d 100644
--- a/tests/test_authentication.py
+++ b/tests/test_authentication.py
@@ -168,6 +168,15 @@ class TokenAuthTests(TestCase):
         response = self.csrf_client.post('/token/', {'example': 'example'}, format='json', HTTP_AUTHORIZATION=auth)
         self.assertEqual(response.status_code, status.HTTP_200_OK)
 
+    def test_post_json_makes_one_db_query(self):
+        """Ensure that authenticating a user using a token performs only one DB query"""
+        auth = "Token " + self.key
+
+        def func_to_test():
+            return self.csrf_client.post('/token/', {'example': 'example'}, format='json', HTTP_AUTHORIZATION=auth)
+
+        self.assertNumQueries(1, func_to_test)
+
     def test_post_form_failing_token_auth(self):
         """Ensure POSTing form over token auth without correct credentials fails"""
         response = self.csrf_client.post('/token/', {'example': 'example'})