2009/8/5 Alex Gaynor <alex.gay...@gmail.com>:
>
> On Wed, Aug 5, 2009 at 11:31 AM, Peter Bengtsson<pete...@gmail.com> wrote:
>>
>> I have found that when running this as a normal server, the rollback
>> DOES work. It's just in tests it doesn't work.
>>
>> On 5 Aug, 17:27, Peter Bengtsson <pete...@gmail.com> wrote:
>>> Here's the models:
>>>
>>> # models.py
>>> class Article(models.Model):
>>> title = models.CharField(max_length=100)
>>>
>>> # urls.py
>>> urlpatterns = patterns('',
>>> (r'^delete-rolledback/$', delete_rolledback),
>>> )
>>>
>>> # views.py
>>> def delete_rolledback(request):
>>> transaction.enter_transaction_management()
>>> transaction.managed(True)
>>> qs = Article.objects.all()
>>> for article in qs:
>>> if article.title.lower().startswith(request.GET.get
>>> ('startswith')):
>>> article.delete()
>>> break
>>> transaction.rollback()
>>> return HttpResponse("Rolled back!")
>>>
>>> # tests.py
>>> from django.test import TestCase
>>>
>>> from news.models import Article
>>>
>>> class SimpleTest(TestCase):
>>> def setUp(self):
>>> Article.objects.create(title=u'Abraham')
>>> Article.objects.create(title=u'Ben')
>>> Article.objects.create(title=u'Ancor')
>>> Article.objects.create(title=u'Wat')
>>>
>>> super(SimpleTest, self).setUp()
>>>
>>> def test_deletion(self):
>>> count_before = Article.objects.count()
>>> assert count_before == 4
>>> r = self.client.get('/news/delete-rolledback/',
>>> dict(startswith='a'))
>>> assert r.content.count("Rolled back")
>>> count_after = Article.objects.count()
>>> assert count_after == 4, count_after
>>>
>>> When I run these tests (with postgres or with sqlite) I get this
>>> assertion error:
>>>
>>> Traceback (most recent call last):
>>> ...
>>> AssertionError: 3
>>>
>>> If someone more clued up than me could take a look at this and confirm
>>> that it is a Django bug I can start looking into explaining what's
>>> wrong and possibilities of a patch.
>>> I've found this ticket (http://code.djangoproject.com/ticket/4758)
>>> where someone has experienced similar problems when using Oracle. But
>>> only for Oracle; he claims the same code *works* with Postgres.
>> >
>>
>
> Your tests test transaction behavior so you need to subclass
> TransactionTestCase instead of jsut TestCase.
>
I see. Thanks!
> Alex
>
> --
> "I disapprove of what you say, but I will defend to the death your
> right to say it." -- Voltaire
> "The people's good is the highest law." -- Cicero
> "Code can always be simpler than you think, but never as simple as you
> want" -- Me
>
> >
>
--
Peter Bengtsson,
work www.fry-it.com
home www.peterbe.com
hobby www.issuetrackerproduct.com
fun crosstips.org
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