From 4ec6d281cdc67bee1c7ac272272ae500b600fe49 Mon Sep 17 00:00:00 2001
From: Simon Charette <charette.s@gmail.com>
Date: Mon, 23 Sep 2013 14:18:03 -0400
Subject: [PATCH] Fixed #21001 -- Added a regression test for empty string
 exclusion on Oracle.

The issue was present in 1.4.x but has been reported to be fixed in master.

Thanks to @timgraham for the patch.
---
 tests/queries/tests.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tests/queries/tests.py b/tests/queries/tests.py
index e58f05c4e5..ebc8b525df 100644
--- a/tests/queries/tests.py
+++ b/tests/queries/tests.py
@@ -2488,6 +2488,13 @@ class EmptyStringsAsNullTest(TestCase):
             [self.nc.pk], attrgetter('pk')
         )
 
+    def test_21001(self):
+        foo = NamedCategory.objects.create(name='foo')
+        self.assertQuerysetEqual(
+            NamedCategory.objects.exclude(name=''),
+            [foo.pk], attrgetter('pk')
+        )
+
 class ProxyQueryCleanupTest(TestCase):
     def test_evaluated_proxy_count(self):
         """