Added a test for mixing args and kwargs in reverse().

tests/urlpatterns_reverse/tests.py

@@ -290,6 +290,11 @@ class URLPatternReverse(SimpleTestCase):
         with self.assertRaises(NoReverseMatch):
             reverse(None)
 
+    def test_mixing_args_and_kwargs(self):
+        msg = "Don't mix *args and **kwargs in call to reverse()!"
+        with self.assertRaisesMessage(ValueError, msg):
+            reverse('name', args=['a'], kwargs={'b': 'c'})
+
     @override_script_prefix('/{{invalid}}/')
     def test_prefix_braces(self):
         self.assertEqual(