Bug 316539 – REGRESSION(314135@main): [macOS] media/media-source/media-source-real-webm-fastseek.html is a flaky text diff

• Status: NEW
• Component: New Bugs

[Diego De La Toba]

media/media-source/media-source-real-webm-fastseek.html is a flaky text diff on macOS.


HISTORY:
https://results.webkit.org/?suite=layout-tests&test=media%2Fmedia-source%2Fmedia-source-real-webm-fastseek.html


DIFF:
--- /Volumes/Data/worker/Apple-Tahoe-Release-AppleSilicon-WK2-Tests/build/layout-test-results/media/media-source/media-source-real-webm-fastseek-expected.txt
+++ /Volumes/Data/worker/Apple-Tahoe-Release-AppleSilicon-WK2-Tests/build/layout-test-results/media/media-source/media-source-real-webm-fastseek-actual.txt
@@ -12,7 +12,7 @@
 EXPECTED (video.currentTime.toFixed(1) == '4') OK
 RUN(video.currentTime = 3)
 EVENT(seeked)
-EXPECTED (video.currentTime.toFixed(1) == '3') OK
+EXPECTED (video.currentTime.toFixed(1) == '3'), OBSERVED '4.0' FAIL
 RUN(video.fastSeek(2))
 EVENT(seeked)
 EXPECTED (video.currentTime.toFixed(1) == '0') OK


DIFF URL:
https://build.webkit.org/results/Apple-Tahoe-Release-AppleSilicon-WK2-Tests/314731@main%20(4521)/media/media-source/media-source-real-webm-fastseek-pretty-diff.html


REPRODUCTION:
I was able to reproduce this on macOS release ToT with the following:

run-webkit-tests --force --no-retry --release --iterations 1000 -f media/media-source/media-source-real-webm-fastseek.html

[Radar WebKit Bug Importer]

<rdar://problem/179012963>

[Diego De La Toba]

Test gardening pull request: https://github.com/WebKit/WebKit/pull/66677

[EWS]

Test gardening commit 314739@main (c9f9fb30bb86): <https://commits.webkit.org/314739@main>

Reviewed commits have been landed. Closing PR #66677 and removing active labels.