On Monday, 10 November 2014 13:52:46 UTC+1, Tom Evans wrote:
>
> On Mon, Nov 10, 2014 at 10:15 AM, Biola Oyeniyi <gbo...@gmail.com
> <javascript:>> wrote:
> > based on the docs, update() Performs an SQL update query for the
> specified
> > fields, and returns the number of rows matched.
> > I have tried updating a model using it on django 1.7.1 with both sqlite
> and
> > postgres but my test suite keeps failing and indicating no update.
> >
> > Here is what i have tried.
> >
> >
> >
> > def create_session(self, email='devito@gmailcom',
> > date=datetime.datetime.now(),
> > duration=datetime.timedelta(hours=1)):
> > new_user = UserFactory(email=email)
> > sf = TutorSessionFactory(tutor_with_skill=self.ts,
> buyer=new_user,
> > date=date,duration=duration)
> > return sf
> >
> > def test_can_update_ehen_udated(self):
> > result = self.create_session()
>
> This creates data from the database, and returns an object with the
> values just stored in the database.
>
> > Session.objects.filter(id=result.id).update(price=Decimal('700'))
>
>
> This updates data in the database
>
> > self.assertEqual(result.price,Decimal('700'))
>
> This asserts that the data you fetched from the database before you
> updated the database has the value which you just updated it to in the
> database.
>
> I hope you can see that is unlikely to ever work. If you want to check
> that the data in the database has been updated, you will need to
> re-fetch the data from the database after updating it.
>
> Bear in mind that this test is effectively then just testing that
> django can store stuff in a database and fetch it out afterwards.
> Django itself has lots of tests that verify this happens.
>
> Cheers
>
> Tom
>
Thanks for the clarification. Just confirmed your suggestions. Learning
something new everyday.
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