Yeah, layout tests fail on Mac without a screen connected to it. Chromium buildbots use Mac minis connected to KVMs for that reason. I'm actually surprised to learn that tests passed on a headless Mac mini.
- Ryosuke On Fri, Oct 7, 2011 at 11:53 AM, Simon Fraser <[email protected]>wrote: > On Oct 7, 2011, at 11:45 AM, Elliot Poger wrote: > > > I was having problems with lots of image mismatches running WebKit layout > tests on a headless MacPro (10.6.8). (The image diffs were very minor > adjustments in scroll bar shading.) > > > > Eventually, out of frustration, I tried running the same test on that > headless MacPro as well as my desktop MacPro (also 10.6.8). The test > succeeded on my desktop MacPro but not the headless MacPro. > > > > One difference I have noticed is that the Display Profile (under System > Preferences > Displays > Color) is set to "sRGB IEC61966-2.1" (my desktop > was set to "Generic RGB Profile"). I tried setting it to "Generic RGB > Profile" on the headless machine, but when I closed and reopened System > Preferences it had reverted to "sRGB IEC61966-2.1". > > > > I tried setting the Display Profile on my desktop to "sRGB IEC61966-2.1", > and the color scheme was noticeably brighter... but when I ran layout tests > afterwards, I saw that layout tests automatically set the profile back to > "Generic RGB Profile" temporarily for the test. When I run layout tests on > the headless MacPro, it seems that it fails to change the color profile (and > I don't see any error in the output of layout tests). > > > > I tried it on a headless Mac Mini (10.6.8) and there layout tests was > able to change to Generic RGB Profile (and thus the tests passed). > > > > For now, my fix is going to be: don't run layout tests on headless > MacPros; use headless MacMinis instead. Is this a Known Issue? Any > suggestions? > > I'm aware that there are color profile issues when running pixel tests, but > I was not aware of differences between hardware. > > We may be able to fix DumpRenderTree/WebKitTestRunner to change the color > profile just for the test window, and not globally. I haven't tried that > yet. > > Finally, I've noticed some changes in color profile behavior on Lion, so if > you try running tests there, you may see a new set of problems. > > Simon > > > _______________________________________________ > webkit-dev mailing list > [email protected] > http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev >
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