If we focus on the WPT tests (inside `testing/web-platform/tests/`), then use [mach wpt](https://firefox-source-docs.mozilla.org/web-platform/index.html) <path/folder/file.html> See also `testing/web-platform/meta/` where known failing tests are annotated/turned off. For quick view there's also https://wpt.fyi/results
Bug 1806731 Comment 17 Edit History
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If we focus on the WPT tests (inside `testing/web-platform/tests/`), then use [mach wpt](https://firefox-source-docs.mozilla.org/web-platform/index.html) <path/folder/file.html> See also `testing/web-platform/meta/` where known failing tests are annotated/turned off. For quick view there's also https://wpt.fyi/results (but that's outside our tree)
If we focus on the WPT tests (inside `testing/web-platform/tests/`), then use [mach wpt](https://firefox-source-docs.mozilla.org/web-platform/index.html) <path/folder/file.html> to run tests locally. See also `testing/web-platform/meta/` where known failing tests are annotated/turned off. For quick view there's also https://wpt.fyi/results (but that's outside our tree)