#11475: test.Client.session.save() raises error for anonymous users
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Reporter: [email protected] | Owner: nobody
Status: new | Milestone:
Component: Testing framework | Version: 1.1-beta-1
Resolution: | Keywords:
Stage: Unreviewed | Has_patch: 0
Needs_docs: 0 | Needs_tests: 0
Needs_better_patch: 0 |
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Comment (by [email protected]):
Aha! Now I understand.
1. Until you've gotten back a cookie from the middleware (which *does*
run from `Client.get`) you don't have the session object. Instead you get
the stupid useless empty dict.
2. Obviously you don't get a cookie until after you make a request.
(Unless you call `Client.login`.)
3. But even if you make a request, Django won't set the cookie unless the
view tries to store something in `request.session`.
4. At that point `self.client.session` will give you a useful object, but
it's not the same object the view will use, so if you want to communicate
with the view, you have to call `.save()` on it.
5. But you can't just say `self.client.session['foo'] = 'bar';
self.client.session.save()` because, as explained in my previous two
comments, you get a separate session object for each time you say
`self.client.session`. Instead you have to say `s = self.client.session;
s['foo'] = 'bar'; s.save()`, and then everything will work.
So now I know. It's not a bug, really; it's just that Django-under-test
behaves in a way that makes it error-prone to write unit tests for.
It might still be useful to factor out the code in `Client.login` that
creates a session and saves the session cookie without making an HTTP
request, for tests that want to set up test session data without having to
go through whatever series of views are necessary for a real person to set
that data.
Maybe this is some kind of a Django FAQ.
--
Ticket URL: <http://code.djangoproject.com/ticket/11475#comment:4>
Django <http://code.djangoproject.com/>
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