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From "Andrew Black (JIRA)" <>
Subject [jira] Commented: (STDCXX-683) implement notion of expected failures in the test suite
Date Thu, 20 Dec 2007 23:16:43 GMT


Andrew Black commented on STDCXX-683:

Looking at the revised xcodes.html file, I think it will be necessary to add an 'XNOUT' (expected
NOUT) and 'XFMAT'  (expected FMAT) assertion code.  This is because we currently have tests
which currently produce NOUT and FMAT status messages, and these messages are expected.  Examples
include NOUT messages from many regression tests (like 18.limits.stdcxx-436) and FORMAT (FMAT)
messages from some driver tests (0.cmdopts, 0.strncmp, and  0.valcmp).

> implement notion of expected failures in the test suite
> -------------------------------------------------------
>                 Key: STDCXX-683
>                 URL:
>             Project: C++ Standard Library
>          Issue Type: New Feature
>          Components: Test Driver, Tests
>    Affects Versions: 4.2.0
>            Reporter: Martin Sebor
>            Assignee: Martin Sebor
>            Priority: Critical
>         Attachments: codes.html, xcodes.html
> Tests (or examples) that fail for known reasons that we haven't been able to deal with
should be distinguished from failures that haven't been analyzed yet. For example, an example
program that fails to compile on an older target platform because of a compiler bug that we
can't find a simple/elegant workaround should be flagged as such in the test results. Similarly,
a test that fails one or more assertions due to compiler or libc bugs on a specific platform
(or a set of platforms) that we are unable to work around should be reported as such.
> This is important in order to reduce the currently fairly large number of unexpected
failures and to be able to make changes without having to worry about regressions as much.

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