[webkit-dev] Mysteriously failing unittests on buildbot - help needed

[Adam Barth]

On Tue, Oct 30, 2012 at 7:45 AM, Nick Johnson <nick at spider.io> wrote:
> I recently submitted a patch, in
> https://bugs.webkit.org/show_bug.cgi?id=100257 . The buildbot reports four
> unit tests - two existing ones and two new ones I wrote - as failing, but
> doesn't provide any details.

We usually refer to these tests as LayoutTests (despite many of them
testing things other than layout).

> All tests pass on my test runner on OSX 10.7.5. In an attempt to replicate
> the buildbot as closely as possible, I compiled the chromium port of webkit
> on Ubuntu (12.10) and reran the tests there; all the tests pass there, too.
>
> Since I'm not able to retrieve any details of the failures from buildbot,
> and all my attempts to replicate the failure have failed, I'm at a bit of a
> loss as to what to do. Can anyone provide help with diagnosing the issue?

I'm sorry that there's no way of retrieving the results from the bot.
That's something I'd like to improve, but I haven't had a chance to do
that.  I'm not sure what more you can try if you aren't able to
reproduce the failure locally.  One option is to land your patch and
see whether the bots on build.webkit.org agree that the tests fail.

Adam