The CSS2.1 Test Suite still needs a lot of work, and the CSS Working Group can't finish it all by itself. Anyone can contribute: here are the guidelines.
Send a message to public-css-testsuite@w3.org stating the following:
I agree to license under the BSD 3-clause license [1] all my contributions to the W3C CSS Test Suites. [1] http://www.opensource.org/licenses/bsd-license.php I also hereby grant to the W3C, a perpetual, non-exclusive, royalty-free, world-wide right and license under my copyrights in these contributions to copy, publish, use, modify, and to distribute my contributions under the W3C Document License [2], as well as a right and license of the same scope to any derivative works that are prepared by the W3C or contributors working on its behalf and that are based on or incorporating all or part of my contributions. [2] http://www.w3.org/Consortium/Legal/2002/copyright-documents-20021231
This way we have a record that you gave us permission to distribute your contribution under these two licenses.
You can submit a new test by
Please make sure submissions follow the CSS2.1 Test Suite Guidelines. New tests are subject to the review process. We may ask you to fix problems in your test and resubmit it before adding it to the test suite.
To contribute a fix to an existing test, send an email to public-css-testsuite@w3.org with both
Fixes to existing tests are also subject to the review process.
If you've waited at least a week and your contribution seems to be going nowhere, please complain to the test suite owner (currently fantasai). No, really, please do complain if this is the case; I'm probably just having some trouble staying on top of things and need a reminder or three.