It checks that visuals (CSS/fonts/images/SVG/etc.) render correctly by taking screenshots of portions of a website and comparing them against known good screenshots. It also provides tools for testing calculated CSS values and the position of HTML elements.
This is what a Needle test case looks like:
from needle.cases import NeedleTestCase class BBCNewsTest(NeedleTestCase): def test_masthead(self): self.driver.get('http://www.bbc.co.uk/news/') self.assertScreenshot('#blq-mast', 'bbc-masthead')
This example checks for regressions in the appearance of the BBC's masthead.
Full documentation available on Read the Docs.
If you'd like to build the documentation yourself, first install
pip install sphinx
cd docs make html
The documentation will then be available browsable from
Running Needle's test suite