Perhaps, but in practice, it's not enough. Here's an ahem pixel test that is slightly different on Mac and Chromium Linux: http://trac.webkit.org/browser/trunk/LayoutTests/platform/mac/fast/block/basic/010-expected.png http://trac.webkit.org/browser/trunk/LayoutTests/platform/chromium-linux/fast/block/basic/010-expected.png
Also, I think it would be hard to tell by examining the HTML if a test uses another font. For example, the line height of an empty block might depend on the default font that isn't specified (does <pre></pre> render the same height on all platforms?). On Thu, Jun 2, 2011 at 10:44 AM, Adam Barth <[email protected]> wrote: > I thought the whole point of Ahem was to avoid those problems. > > Adam > > > On Thu, Jun 2, 2011 at 1:29 AM, Hao Zheng <[email protected]> wrote: > > Actually, even the same Ahem font will be rendered differently on > > different platform, depending on the font drawing library, the > > anti-aliasing algorithm, subpixel, tiny float-point calculation diff > > on different arch. > > > > On Thu, Jun 2, 2011 at 3:30 AM, Eric Seidel <[email protected]> wrote: > >> I know that Ahem is safe to use across multiple platforms (the font > metrics > >> will be the same). Do we know if there are any other fonts for which > this > >> is true? > >> I'd like to make the style-bot yell at people when they use pixel tests > with > >> non-safe fonts. Right now that list would only include ahem. > >> -eric > >> _______________________________________________ > >> webkit-dev mailing list > >> [email protected] > >> http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev > >> > >> > > _______________________________________________ > > webkit-dev mailing list > > [email protected] > > http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev > > > _______________________________________________ > webkit-dev mailing list > [email protected] > http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev >
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