[2.0.x] Fixed #29428 -- Fixed admin changelist crash when using a query expression without asc()/desc() in the ordering.

Backport of 0d8e3e608ee9aab5076d497664aa97e0a29e523e from master

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/admin_changelist/tests.py b/tests/admin_changelist/tests.py
index fb83718ebd..5e2cbc82b9 100644
--- a/tests/admin_changelist/tests.py
+++ b/tests/admin_changelist/tests.py
@@ -73,6 +73,16 @@ class ChangeListTests(TestCase):
         cl = m.get_changelist_instance(request)
         self.assertEqual(cl.get_ordering_field_columns(), {3: 'desc', 2: 'asc'})
 
+    def test_specified_ordering_by_f_expression_without_asc_desc(self):
+        class OrderedByFBandAdmin(admin.ModelAdmin):
+            list_display = ['name', 'genres', 'nr_of_members']
+            ordering = (F('nr_of_members'), Upper('name'), F('genres'))
+
+        m = OrderedByFBandAdmin(Band, custom_site)
+        request = self.factory.get('/band/')
+        cl = m.get_changelist_instance(request)
+        self.assertEqual(cl.get_ordering_field_columns(), {3: 'asc', 2: 'asc'})
+
     def test_select_related_preserved(self):
         """
         Regression test for #10348: ChangeList.get_queryset() shouldn't