[Webkit-unassigned] [Bug 215135] New: deduplicate WPT tests

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=215135

            Bug ID: 215135
           Summary: deduplicate WPT tests
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: gsnedders at apple.com
                CC: bfulgham at webkit.org, dino at apple.com,
                    mmaxfield at apple.com, simon.fraser at apple.com

Driven by Myles noticing a bunch of duplication (which already led to Bug 215073), here's a bunch of directories which appear to substantially be derived from WPT tests:

(unimported) ./imported/w3c/web-platform-tests/css/CSS2 maps to ./css2.1/20110323/ and ./css2.1/tables/ (./css2.1/ also, but the mapping between files to those in WPT is, well, I don't know how to figure that out in any sane way)

(unimported) ./imported/w3c/web-platform-tests/css/css-conditional/ maps to ./css3/conditional/w3c/

(unimported) ./imported/w3c/web-platform-tests/css/css-masking/clip-path-svg-content/ maps to ./svg/clip-path/

(unimported) ./imported/w3c/web-platform-tests/webvtt/ maps to ./media/track/opera/track/webvtt/

./imported/w3c/web-platform-tests/content-security-policy/ maps to ./http/tests/security/contentSecurityPolicy/1.1/

./imported/w3c/web-platform-tests/css/css-backgrounds/ maps to ./ietestcenter/css3/bordersbackgrounds/

./imported/w3c/web-platform-tests/css/css-shapes/ maps to ./css3/shapes/

./imported/w3c/web-platform-tests/css/css-writing-modes/ maps to ./imported/blink/imported/csswg-test/css-writing-modes-3/ *and* ./imported/w3c/i18n/bidi/

./imported/w3c/web-platform-tests/html/canvas/element/ and ./imported/w3c/web-platform-tests/html/semantics/embedded-content/the-canvas-element/ maps to ./canvas/philip/tests/2d.composite.operation.highlight.html *and* ./imported/w3c/canvas/

./imported/w3c/web-platform-tests/html/semantics/embedded-content/media-elements/track/track-element/ maps to ./media/track/

./imported/w3c/web-platform-tests/svg/ maps to ./svg/

./imported/w3c/web-platform-tests/webaudio/ maps to ./webaudio/

---

CSS2 is probably relatively high-value to get imported as a whole with Bug 215087,  but poses a number of challenges: it contains 82% of all visual tests (i.e., "screenshot comparison" tests) in WPT which nobody current runs. We could import them as dumpAsText tests, which would provide most of the value without the infinite pain of PNGs. Starting to run all of them would, however, cause a substantial increase in number of tests run (we currently run ~1.1k CSS2 tests, WPT contains 9.5k).

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