From f218a2ff455b5f7391dd38038994f2c5f8b0eca1 Mon Sep 17 00:00:00 2001
From: Josh Smeaton <josh.smeaton@gmail.com>
Date: Tue, 27 Jan 2015 13:37:43 +1100
Subject: [PATCH] Refs #24060 -- Added a test demonstrating reverse order isn't
 mutable

---
 tests/ordering/tests.py | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/tests/ordering/tests.py b/tests/ordering/tests.py
index 60880b71be..19d289a2d1 100644
--- a/tests/ordering/tests.py
+++ b/tests/ordering/tests.py
@@ -137,6 +137,28 @@ class OrderingTests(TestCase):
             attrgetter("headline")
         )
 
+    def test_reverse_ordering_pure(self):
+        qs1 = Article.objects.order_by(F('headline').asc())
+        qs2 = qs1.reverse()
+        self.assertQuerysetEqual(
+            qs1, [
+                "Article 1",
+                "Article 2",
+                "Article 3",
+                "Article 4",
+            ],
+            attrgetter("headline")
+        )
+        self.assertQuerysetEqual(
+            qs2, [
+                "Article 4",
+                "Article 3",
+                "Article 2",
+                "Article 1",
+            ],
+            attrgetter("headline")
+        )
+
     def test_extra_ordering(self):
         """
         Ordering can be based on fields included from an 'extra' clause