Can somebody please explain to me how to properly test Postgres DB
errors, particularly IntegrityError. For example i have next test:
class TestSlugs(TestCase):
# This slug must be unique
b = BookPublisher(slug=self.duplicate_slug)
self.assertRaises(IntegrityError, b.save)
#check if there's only one BookPublisher
self.assertEquals(BookPublisher.objects.count(), 1)
Here it catches the IntegrityError but then all operations will fail,
because that's how postgres works, ok. I see in docs that i can use
transaction.rollback() but where: in test or in save() method?
Also, i don't like the idea of writing rollbacks by hand, why can't
django just try to save, and if it fails - give me IntegrityError and
let me continue to work.
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