Re: Testing template context processors

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Hi Gergely,

On 03/17/2015 10:52 AM, Gergely Polonkai wrote:
> I wrote a context processor which makes some global variables of mine
> available for templates. I cannot find a good (cough… any) article on
> how to test such processors. Could you give me some directions on where
> to start with writing one?

Writing a unit test for a context processor is quite simple. Construct a
fake request (you can use RequestFactory, though if your context
processor only accesses one or two attributes of the request, it might
be simpler to just build a custom fake or use a library like pretend
[1]), then call the context processor function in your test, passing in
the fake request, and assert that the returned dictionary contains what
you expect.

If your templates require the values from the context processor in order
to render correctly, you can also write a higher-level integration or
functional test by using the test client to access a view that renders a
template that needs the context processor, and then assert the right
value is found in the rendered HTML.

Carl

[1] https://pypi.python.org/pypi/pretend

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