The following files are used to run W3C testharness.js-based tests. These files should not be modified locally, as they are manually synced from LayoutTests/external/wpt/resources (https://crbug.com/685854), which is automatically synced with W3C web-platform-tests.
- testdriver.js
- testharness.js
- testharness.css
- testdriver-actions.js
The following files are native to Blink and can be modified:
- testdriver-vendor.js automation via Blink internal APIs
- testharnessreport.js integration with Blink's test runner
See also: https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md
References:
- web-platform-tests https://github.com/web-platform-tests/wpt