[Webkit-unassigned] [Bug 277586] New: [WPT import/export friction] Reference tests require added both an untested -ref.html and an -expected.html

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=277586

            Bug ID: 277586
           Summary: [WPT import/export friction] Reference tests require
                    added both an untested -ref.html and an -expected.html
           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: simon.fraser at apple.com

WPT use <link rel="match"> and often share references between tests. WebKit uses one -expected.html per tests. These need to be reconciled (bug 203784) but the current state is annoying and error prone:

* You have to add both the -ref.html and -expected.html, as well as the test, so 3 files per test, potentially.
* The -ref.html and -expected.html may not match, which means an export followed by an import will cause a behavior change.
* There's no local testing that the <link rel="match"> and -ref.html are accurate and produce the expected result.

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