Bug 256116 – REGRESSION(Ventura 13.3): [ Ventura arm64 ] 2X imported/mozilla/svg/smil/style/anim-css-fontsize-1-from (layout-tests) are constant ImageOnlyFailures

• Component: SVG
• Status: RESOLVED FIXED

[Robert Jenner]

imported/mozilla/svg/smil/style/anim-css-fontsize-1-from-by-pct-pct.svg 
imported/mozilla/svg/smil/style/anim-css-fontsize-1-from-to-pct-pct.svg

are constant ImageOnlyFailures on macOS Ventura Apple Silicon only.

HISTORY:
https://results.webkit.org/?suite=layout-tests&suite=layout-tests&test=imported%2Fmozilla%2Fsvg%2Fsmil%2Fstyle%2Fanim-css-fontsize-1-from-by-pct-pct.svg&test=imported%2Fmozilla%2Fsvg%2Fsmil%2Fstyle%2Fanim-css-fontsize-1-from-to-pct-pct.svg

DIFF URLS:
https://build.webkit.org/results/Apple-Ventura-Release-AppleSilicon-WK2-Tests/263518@main%20(2969)/imported/mozilla/svg/smil/style/anim-css-fontsize-1-from-by-pct-pct-diffs.html
https://build.webkit.org/results/Apple-Ventura-Release-AppleSilicon-WK2-Tests/263518@main%20(2969)/imported/mozilla/svg/smil/style/anim-css-fontsize-1-from-to-pct-pct-diffs.html

They appear to be off by only .01%

[Radar WebKit Bug Importer]

<rdar://problem/108682737>

[Robert Jenner]

I was able to reproduce these failures at Ventura Debug ToT on Apple Silicon running the tests as follows:

run-webkit-tests <test_goes_here>

I have marked the expectations for this test prior here:

https://commits.webkit.org/262939@main

[Robert Jenner]

I had initially assumed that this was a macOS Ventura 13.3 regression. After further investigation I found that wasn't the case, and that our range appears to be 262625@main-262645@main.

[Robert Jenner]

(In reply to Robert Jenner from comment #3)
> I had initially assumed that this was a macOS Ventura 13.3 regression. After
> further investigation I found that wasn't the case, and that our range
> appears to be 262625@main-262645@main.

Disregard this. It actually was a macOS 13.3 regression. It appears to be a commit regression. However, the last time it was passing it was running on macOS 13.3, but the WebKit built product was build with Xcode 14.2, which wouldn't have had the macOS 13.3 SDK yet. The next build was after we upgraded the bots to 13.3, and the builders to Xcode 14.3. That's when the constant failures started. 

Just to confirm I downloaded a build that was older than the last known passing point (262625@main) and it still failed.

[Alexey Proskuryakov]

The text is rendered fairly differently at small size, weird that a reftest is affected.

[EWS]

Test gardening commit 284569@main (b69d0abedec6): <https://commits.webkit.org/284569@main>

Reviewed commits have been landed. Closing PR #34578 and removing active labels.