[webkit-dev] Please don't land patches without rebaselining tests for at least one platform

Ryosuke Niwa rniwa at webkit.org
Thu Mar 21 16:10:02 PDT 2013

On Thu, Mar 21, 2013 at 4:02 PM, Glenn Adams <glenn at skynav.com> wrote:

> On Thu, Mar 21, 2013 at 12:49 PM, Ryosuke Niwa <rniwa at webkit.org> wrote:
>> Lately, I've encountering changesets that only add lines to
>> TestExpectations and then never baseline tests for any platform.
> This (never rebaseline tests for any platform in that changeset) may not
> be possible depending on circumstances. For example, I do my dev work on
> MBP Retina, which produces different baselines than the platforms used for
> mac test bots. As a result, I sometimes have no choice but to land a
> changeset without a new baseline and then use garden-o-matic after-the-fact
> to land a new baseline.

Then how are you verifying that your patch is correct? How are reviewers
supposed to review such a patch?

Uploading a rendering engine patch without first verifying that tests are
still passing and new tests are generating results as expected sounds like
a bad idea to me.

Or do you have an alternative in mind that would work in my case? Note that
> it really isn't practical for me to ask another dev to build my patch
> before landing in order to provide me a new baseline that i can add to the
> patch.

As I've announced on another thread, EWS now uploads actual results on
Bugzilla so this shouldn't be an issue anymore.

- R. Niwa
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