Bug 131476 - WebVTT tests don't work because of 800x600 snapshot (but are very flaky anyway)
Summary: WebVTT tests don't work because of 800x600 snapshot (but are very flaky anyway)
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Media (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-04-09 23:04 PDT by Alexey Proskuryakov
Modified: 2014-04-09 23:17 PDT (History)
4 users (show)

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Description Alexey Proskuryakov 2014-04-09 23:04:56 PDT 
Multiple WebVTT tests are flakily failing in the same way, with expected image being all white, and actual image being all black. This happens on Mountain Lion and Mavericks, see e.g. http://build.webkit.org/results/Apple%20MountainLion%20Debug%20WK2%20(Tests)/r167059%20(17098)/results.html

This makes EWS very slow and confused, I'm going to skip all that I see being flaky.

These tests don't work anyway - the content that's being tested is outside 800x600 snapshot area, so even when passing, all they confirm is that 800x600 white rectangle matches a 800x600 white rectangle.
Comment 1 Alexey Proskuryakov 2014-04-09 23:15:09 PDT 
> actual image being all black

That's not the problem we were seeing elsewhere though - the test visibly blinks black when loading in browser, so the snapshot is just taken at a wrong moment, it's not a complete failure taking it.
Comment 2 Alexey Proskuryakov 2014-04-09 23:17:45 PDT 
Skipped the test in <http://trac.webkit.org/r167065>.