[LLVMdev] How to XFAIL test cases with buildbot LNTFactory

Daniel Dunbar daniel at zuster.org
Thu Dec 19 10:10:13 PST 2013


There isn't a good way to mark XFAILs in the nightly test suite. The
current way is to do it manually in the Makefiles (detecting the situation
that causes the test to XFAIL). See SingleSource/Regression/C/Makefile and
search for EXEC_XFAILS for an example.

 - Daniel


On Thu, Dec 19, 2013 at 1:08 AM, Tobias Grosser <tobias at grosser.es> wrote:

> Hi,
>
> I am currently trying to set up new performance and regression testers for
> Polly and LLVM and would like to XFAIL two test cases. I am using the
> LNTBuilder instead of the NightlyTestBuilder out of the assumption
> that the LNTBuilder is the more modern solution.
>
> However, when trying to xfail test cases I realized the xfail=[] parameter
> of getLNTFactor is ignored. Previously this was not an issue,
> as LNT would automatically XFAIL test cases that failed in the previous
> run, but it seems Daniel removed this 'feature' a year ago:
>
>
> commit 11987a4615f2a751c30ad6de29e1c277446a940c
> Author: ddunbar <ddunbar at 91177308-0d34-0410-b5e6-96231b3b80d8>
> Date:   Fri Oct 26 18:52:03 2012 +0000
>
>     lnt runtest: Don't use XFAIL just because a test was previously
> failing.
>
> Does anyone know what is the canonical way to mark xfailures when running
> nightly tests on the buildbots?
>
> Should I switch to the NightlyTestBuilder? Or is there a way to convince
> the LNTBuilder to accept XFAILures e.g. by allowing
> the LitTestCommand to take an optional xfails argument according
> to which test results will be relabeled for the buildbot?
>
> Cheers,
> Tobias
>
>
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