Django and zc.testbrowser integration
Project description
About
homophony provides zc.testbrowser integration for Django; zc.testbrowser is a lot more robust than the default functional testing client that comes with Django.
See the introduction to zc.testbrowser for a better understanding of how powerful it is.
Using homophony
First of all, you need to have homophony installed; for your convenience, recent versions should be available from PyPI.
Let’s say you’re working on an application called foobar; the tests for this application are located in foobar/tests.py.
Unit tests
Use this as a starting point for foobar/tests.py:
from homophony import BrowserTestCase, Browser
class FoobarTestCase(BrowserTestCase):
def testHome(self):
browser = Browser()
browser.open('http://testserver')
browser.getControl(name='first_name').value = 'Jim'
browser.getForm().submit()
self.assertEquals(browser.url, 'http://testserver/hello')
self.assertEquals(browser.title, 'Hello Jim')
Bear in mind that implementing custom setUp and tearDown methods should involve calling those defined in BrowserTestCase.
Doctests
If you prefer doctests over unit tests (as we do!), use the following as a base for foobar/tests.py:
from homophony import DocFileSuite
def suite():
return DocFileSuite('tests.txt')
And here is an example foobar/tests.txt file:
The website welcomes its visitors with a form:
>>> browser = Browser()
>>> browser.open('http://testserver')
>>> browser.getControl(name='first_name').value = 'Jim'
>>> browser.getForm().submit()
When a name is given, it echoes back with an informal greeting:
>>> browser.title
'Hello Jim'
>>> print browser.contents
<!DOCTYPE html>
...
<h1>Hello Jim</h1>
...
And there is a link to go back:
>>> browser.getLink('Go back').click()
>>> browser.title
'Homez'
Example application
There is an example Django application in the source distribution. Let’s run the tests:
wormhole:example admp$ ./manage.py test -v 2 website Creating test database... Creating table auth_permission Creating table auth_group Creating table auth_user Creating table auth_message Creating table django_content_type Creating table django_session Creating table django_site Installing index for auth.Permission model Installing index for auth.Message model ... testHome (example.website.tests.FoobarTestCase) ... ok Doctest: tests.txt ... ok ---------------------------------------------------------------------- Ran 2 tests in 0.102s OK Destroying test database...
The -v 2 parameter is there to get the list of tests printed, and is otherwise unnecessary.
For learning purposes, try to break the tests and witness the details in the output of the test runner.
How does it work?
Custom hooks are installed for urllib to pass all requests for http://testserver to a subclass of WSGIHandler (which exposes Django applications through WSGI). The real heavy lifting is performed by wsgi_intercept.
Feedback
There is a home page with instructions on how to access the code repository.
Send feedback and suggestions to team@shrubberysoft.com.
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