django-with-asserts - Clean up your template tests

Make your Django HTML tests more explicit and concise - and remove their dependence on the full response cycle.

Turn this:

resp = self.client.get(reverse('/'))
self.assertContains(
    resp,
    '<input id="id_email" type="text" name="email" maxlength="75" value="bob@example.com>',
    html=True
)

Into this:

html = render_to_string('homepage.html',  {'user': {'email': 'bob@example.com'}})
with self.assertHTML(html, 'input[name="email"]') as (elem,):
    self.assertEqual(elem.value, 'bob@example.com')

Links

• Documentation for the original version: https://django-with-asserts.readthedocs.org
• Code: https://github.com/cnk/django-with-asserts

Running tests

1. Clone the project
2. Set up a virtual environment for your testing (virtualenv env) and activate it (source env/bin/activate)
3. Install dependencies (pip install django, lxml, cssselect)
4. Install this code into your virtual environment (pip install -e path/to/django_with_asserts)

5. Set your PYTHONPATH to include the top level directory and the tests directory:

   export PROJ_ROOT=<where your code is>
   export PYTHONPATH=${PROJ_ROOT}/django-with-asserts:${PROJ_ROOT}/django-with-asserts/tests

6. From within the tests directory, run django-admin.py test --settings=project.settings