Answering myself, in case this is useful to anyone in the future...
I eventually discovered the problem lay in the method which checked
submitted comments for spam (a method along these lines:
http://sciyoshi.com/blog/2008/aug/27/using-akismet-djangos-new-comments-framework/
). It expected the request object to have META['HTTP_REFERER'] and
META['HTTP_USER_AGENT']. When the comment was submitted from a unit
test, these weren't present and this was causing things to fall over.
I've no idea why that generated what looked like a template error, but
checking for the presence of these, and using empty strings if they're
not present, has got things working again.
On Thu, Nov 11, 2010 at 5:30 PM, Phil Gyford <gyf...@gmail.com> wrote:
> Hi,
>
> I have a unit test that tests that a comment can be posted on an entry
> in a Django blog. Posting a comment myself in the browser works fine,
> but the test always fails with this error:
>
> "TemplateSyntaxError: Caught VariableDoesNotExist while rendering:
> Failed lookup for key [request] in u'[{}]'"
>
> Which suggests the use of the 'request' variable in a template isn't
> working. I guess it's a ContextProcessor problem, but I'm stuck as to
> why it fails in the test. Here's the test:
>
> ----
> from django.test.client import Client
> from django.test import TestCase
> import datetime, time
> from weblog.models import Entry
> from django.contrib.comments.forms import CommentSecurityForm
>
> class WeblogBaseTestCase(TestCase):
> fixtures = ['../../aggregator/fixtures/test_data.json', ]
>
> class CommentTestCase(WeblogBaseTestCase):
>
> def post_comment(self, entry_id=1):
> form = CommentSecurityForm( Entry.live.get(pk=entry_id) )
> timestamp = int(time.time())
> security_hash = form.initial_security_hash(timestamp)
> c = Client()
> response = c.post('/cmnt/post/', {
> 'name': 'Bobby',
> 'email': 'bo...@example.com',
> 'url': '',
> 'comment': 'Hello',
> 'content_type': 'weblog.entry',
> 'timestamp': timestamp,
> 'object_pk': entry_id,
> 'security_hash': security_hash,
> },follow=True)
>
> self.failUnlessEqual(response.status_code, 200)
> ----
>
> I'm stumped as to why this error is generated in the test, but not on
> the site, and I'm not sure how to poke around to see where it's going
> wrong. Any thoughts?
>
> Thanks.
>
> --
> http://www.gyford.com/
>
--
http://www.gyford.com/
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