
First Grok the interface to register them:

  >>> grok('silva.fanstatic.tests.dependencies.inheritance_fixture')

Open the page to verify the rendering:

  >>> browser = get_browser()
  >>> browser.open('/root/full.html')
  200

And check the rendering link the CSS files. XXX The order should be the
same the one indicated, but due to a bug it is not:

  >>> urls = browser.html.xpath('//link/@href')
  >>> len(urls)
  1
