[webkit-dev] are fuzzer tests appropriate layout tests?

Dirk Pranke dpranke at chromium.org
Wed Jun 13 11:58:01 PDT 2012

I agree that the fuzzer should be used to create dedicated layout
tests, but we shouldn't run the fuzzer itself as part of the layout
test regression. I would have no objection to it being a separate test

-- Dirk

On Tue, Jun 12, 2012 at 5:17 PM, Ojan Vafai <ojan at chromium.org> wrote:
> See https://bugs.webkit.org/show_bug.cgi?id=87772.
> It's great to use a fuzzer in order to find cases where we're broken and
> then make reduced layout tests from those. The viewspec-parser tests are
> themselves just a fuzzer though. Granted, they are deterministic by avoiding
> using an actual random function, but I don't think throwing randomly
> generated bits at a parser is appropriate for layout testing. If nothing
> else it's very slow.
> These tests regularly timeout on the Chromium debug bots and occasionally
> timeout on the Apple Lion bots. Even on the bots where they don't timeout,
> they're slow. I don't it makes sense to spend 1+ minutes running these 5
> tests when more targeted reductions could get the same effective coverage
> much faster.
> Am I wrong? If not, does anyone object to moving these tests over to
> ManualTests or just deleting them entirely?
> Ojan
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