Added test for combining Q objects with non-Q objects.

tests/queries/test_q.py

@@ -19,6 +19,14 @@ class QTests(SimpleTestCase):
     def test_combine_or_both_empty(self):
         self.assertEqual(Q() | Q(), Q())
 
+    def test_combine_not_q_object(self):
+        obj = object()
+        q = Q(x=1)
+        with self.assertRaisesMessage(TypeError, str(obj)):
+            q | obj
+        with self.assertRaisesMessage(TypeError, str(obj)):
+            q & obj
+
     def test_deconstruct(self):
         q = Q(price__gt=F('discounted_price'))
         path, args, kwargs = q.deconstruct()