Tests for WHATWG specifications are maintained in the web-platform-tests repository, along with those for many other web-platform features, including all those maintained by W3C.
Tests are contributed by community members, including implementers and specification editors. Different specifications are accompanied by testsuites of varying breadth and depth.
In order to contribute tests to the testsuite for a WHATWG standard, follow the instructions on http://web-platform-tests.org/.
Old lists of tests that maybe have not been ported to web-platform-tests?
People should prune this list...
- (Some of?) WebKit's tests
- Some of Mozilla's reftests
- Philip's canvas tests
- Hixie's ad-hoc tests
- Lachlan's tests
- gsnedders' number parsing tests
- zcorpan's tests
- David Håsäther's tests
- Mathias’s tests
- hsivonen's video tests
- Document Object Model (DOM) Conformance Test Suites
Window test suiteall checked and submitted ―Ms2ger (talk) 16:17, 29 February 2016 (UTC)