Meta/WPT.sh import foo can import WPT tests directly into our own test suite, adapting them to our test runner. This is done in Meta/import-wpt-test.py. However, this has some limitations; this issue keeps track of them.

Some of these issues may not be solvable, and will require manually fixing up the tests instead.

• Crash tests are not supported. We import them as text tests, and they always time out. We probably need a separate test category for crash tests.
• We don't handle links to images or other media files. They're not downloaded, and we may need to rewrite the URLs too.
• Importing async text tests does not work. This is probably not possible to solve, but listed here for completeness.
• http://wpt.live/dom/nodes/ParentNode-querySelector-All.html loads a page into an iframe using frame.src = "ParentNode-querySelector-All-content.html#target"; which we don't detect, and we would also need to put that loaded HTML file into data/ so that it's not interpreted as a test itself.
• We don't import non-matching ref tests correctly - #2712. This would require implementing this type of test in our test runner.