Bug 92811 - [Chromium] compositing/video-page-visibility.html needs reworking to be deterministic
Summary: [Chromium] compositing/video-page-visibility.html needs reworking to be deter...
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
Depends on:
Reported: 2012-07-31 16:37 PDT by Peter Kasting
Modified: 2013-04-15 08:07 PDT (History)
2 users (show)

See Also:


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Description Peter Kasting 2012-07-31 16:37:04 PDT
A description of compositing/video-page-visibility.html from jamesr:

"That test is (effectively) a repaint test.  The way repaint tests work is, on each paint we basically draw a 50% opaque gray rectangle over the whole viewport, then paint the rect(s) that were invalidated since the last paint at 100% alpha.  On this test, we do a bunch of paints with no damage, so you see the first paint at 1/2^N alpha, where N is the number of repaints.

"Unfortunately, on this test I don't think we care at all about N, and I think N isn't entirely stable.  File a new bug to rework the test -- in its current form it isn't telling us anything except that we aren't hitting any ASSERTs (which is somewhat useful)."