[webkit-dev] : Modifying expected.txt of layout testcases

Ryosuke Niwa rniwa at webkit.org
Mon Oct 10 09:52:11 PDT 2011

On Mon, Oct 10, 2011 at 6:35 AM, Vamshi <vnampally at innominds.com> wrote:
>  I proposed patch for the bug ID:20040,  https://bugs.webkit.org/show_**
> bug.cgi?id=20040 <https://bugs.webkit.org/show_bug.cgi?id=20040> which
> resulted in failure of few layout testcases. After analysis, I found that
> the expected.txt needs to be modified in order to make the test cases pass.
> because, my patch is to fix the "extra" vertical spacing across table
> sections. Hence it will definitely change the size of the tables and its
> parent render box and render layers. Hence the test cases were failing.
> I am able run layout test cases for chromium-Linux, I guess the same test
> cases would fail on other platforms too.
> So I have the following doubts to proceed further:
> 1. Should I request some of the reviewers to review my patch before I
> actually go and modify all expected.txt files ?
> 2. Do i need to modify expected.txt files for all the platforms? If so, Is
> it required to make set up for each of the platforms?

People usually land their patches (with a platform for at least one
platform) first and then grab results out of the bots (build.webkit.org).
You can also ask for a help on #webkit if you need to rebaseline png files
(note: only Chromium port' bots run pixel tests and the rest of bots only
compare .txt files).

- Ryosuke
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