[1.2.X] Added a skip for a test that fails in Oracle. Unlike other ba…

…ckends, Oracle does not allow duplicate rows where there is a unique_together constraint for which some but not all of the columns are NULL.

Backport of r15777 from trunk.

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.2.X@15778 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/modeltests/model_formsets/tests.py

@@ -4,7 +4,8 @@
 from decimal import Decimal
 
 from django import forms
-from django.db import models
+from django.conf import settings
+from django.db import models, DEFAULT_DB_ALIAS
 from django.forms.models import (_get_foreign_key, inlineformset_factory,
     modelformset_factory, modelformset_factory)
 from django.test import TestCase
@@ -577,30 +578,33 @@ def test_inline_formsets_with_multi_table_inheritance(self):
         self.assertEqual(book1.title, 'Flowers of Evil')
         self.assertEqual(book1.notes, 'English translation of Les Fleurs du Mal')
 
-        # Test inline formsets where the inline-edited object has a
-        # unique_together constraint with a nullable member
-
-        AuthorBooksFormSet4 = inlineformset_factory(Author, BookWithOptionalAltEditor, can_delete=False, extra=2)
-
-        data = {
-            'bookwithoptionalalteditor_set-TOTAL_FORMS': '2', # the number of forms rendered
-            'bookwithoptionalalteditor_set-INITIAL_FORMS': '0', # the number of forms with initial data
-            'bookwithoptionalalteditor_set-MAX_NUM_FORMS': '', # the max number of forms
-            'bookwithoptionalalteditor_set-0-author': '1',
-            'bookwithoptionalalteditor_set-0-title': 'Les Fleurs du Mal',
-            'bookwithoptionalalteditor_set-1-author': '1',
-            'bookwithoptionalalteditor_set-1-title': 'Les Fleurs du Mal',
-        }
-        formset = AuthorBooksFormSet4(data, instance=author)
-        self.assertTrue(formset.is_valid())
-
-        saved = formset.save()
-        self.assertEqual(len(saved), 2)
-        book1, book2 = saved
-        self.assertEqual(book1.author_id, 1)
-        self.assertEqual(book1.title, 'Les Fleurs du Mal')
-        self.assertEqual(book2.author_id, 1)
-        self.assertEqual(book2.title, 'Les Fleurs du Mal')
+    if settings.DATABASES[DEFAULT_DB_ALIAS]['ENGINE'] != 'django.db.backends.oracle':
+        def test_inline_formsets_with_nullable_unique_together(self):
+            # Test inline formsets where the inline-edited object has a
+            # unique_together constraint with a nullable member
+
+            AuthorBooksFormSet4 = inlineformset_factory(Author, BookWithOptionalAltEditor, can_delete=False, extra=2)
+            author = Author.objects.create(pk=1, name='Charles Baudelaire')
+
+            data = {
+                'bookwithoptionalalteditor_set-TOTAL_FORMS': '2', # the number of forms rendered
+                'bookwithoptionalalteditor_set-INITIAL_FORMS': '0', # the number of forms with initial data
+                'bookwithoptionalalteditor_set-MAX_NUM_FORMS': '', # the max number of forms
+                'bookwithoptionalalteditor_set-0-author': '1',
+                'bookwithoptionalalteditor_set-0-title': 'Les Fleurs du Mal',
+                'bookwithoptionalalteditor_set-1-author': '1',
+                'bookwithoptionalalteditor_set-1-title': 'Les Fleurs du Mal',
+            }
+            formset = AuthorBooksFormSet4(data, instance=author)
+            self.assertTrue(formset.is_valid())
+
+            saved = formset.save()
+            self.assertEqual(len(saved), 2)
+            book1, book2 = saved
+            self.assertEqual(book1.author_id, 1)
+            self.assertEqual(book1.title, 'Les Fleurs du Mal')
+            self.assertEqual(book2.author_id, 1)
+            self.assertEqual(book2.title, 'Les Fleurs du Mal')
 
     def test_inline_formsets_with_custom_save_method(self):
         AuthorBooksFormSet = inlineformset_factory(Author, Book, can_delete=False, extra=2)