[Webkit-unassigned] [Bug 31088] Add overridePreference call to all WebGL layout tests

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=31088





--- Comment #10 from Kenneth Russell <kbr at google.com>  2009-11-04 10:49:54 PDT ---
(In reply to comment #8)
> (In reply to comment #7)
> > It appears that if a test is run once under DumpRenderTree and the
> > overridePreference is executed, then subsequent runs will work even if the
> > overridePreference call is not in place. In other words, the effect is similar
> > to the "defaults write" command currently used to enable WebGL in WebKit
> > nightly builds.
> 
> That sounds like a bug in DRT.  It should be resetting preferences to a
> consistent state between tests, not letting them persist.

After looking into this a little further, the overridePreference setting isn't
sticky across runs, but if ObjC code was ever used to force this preference to
true in the context of DumpRenderTree (and it looks like this was done on some
of the developers' machines) then it is persistent. I've filed

DumpRenderTree can retain preferences state across runs
https://bugs.webkit.org/show_bug.cgi?id=31129

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