The CSS2.1 Conformance Test Suite tests conformance to the CSS2.1 specification. It is currently in the earlier stages of development, and is very incomplete. Additionally, some tests may be invalid due to changes in the spec. The latest version is available on the W3C website. The source files are available on the repository website. Anonymous read-only Mercurial access is available to this repository. Note that many of the tests rely on the Ahem font.
Discussion about the CSS2.1 Test Suite takes place on the publicly-archived public-css-testsuite@w3.org mailing list.
Release Date: TBD
The CSS 2.1 Conformance Test Suite should be refreshed and be re-released to address all of the changes since the last official 1.0 release. The criteria for releasing this new suite is to correct or fix all of the tests that are producing incorrect results in any way. These tests have been reviewed, are flagged with [NeedsWork=Precision] and/or [NeedsWork=Incorrect] in Shepherd. Additionally, before releasing the suite, the tests that have been flagged as Rejected should be revisited and Retracted accordingly.
Here are the current set of issues that need attention in order to fulfill the release criteria:
12/4/2012 Note: The information below pertains to efforts prior to the 2.0 Test Suite planning and may not be current. The current set of issues is listed above