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

Ojan Vafai ojan at chromium.org
Tue Jun 12 17:17:24 PDT 2012

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?

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