[pypy-dev] Re: [pypy-svn] r8324 - pypy/trunk/src/pypy/translator/test
holger krekel
hpk at trillke.net
Mon Jan 17 17:26:41 CET 2005
Hi Armin,
On Mon, Jan 17, 2005 at 16:00 +0000, Armin Rigo wrote:
> On Mon, Jan 17, 2005 at 12:08:01AM +0100, hpk at codespeak.net wrote:
> > Log:
> > skip tests if underlying system features (c-compiler mostly)
> > are not present.
>
> > - return t.ccompile()
> > + return py.test.skip_on_error(t.ccompile)
>
> Ahem! This looks like it is saying "run the difficult part that we are
> testing, but if anything goes wrong, just skip the test".
:-) Well, i tested on platforms where these invocations
miserably fail because there was no matching C-compiler
available and then they give long obnoxious tracebacks from
within distutils somewhere.
> The test *is* that t.ccompile() works correctly, and only additionally that
> calling the compiled function works. In practice it's more common that there
> is an exception-raising bug in genc.py, which is called by t.ccompile().
OK, from the containing "build_cfunc" function i didn't guess
that the call to t.ccompile() was supposed to be a test by itself.
I guess that either the Genc() part should be called separatedly
or we should have our distutils invocations fail more cleanly
and extend "skip_on_error" to require specifying an explicit
Exception class. then the above could turn into
py.test.skip_on_error(SystemExit, t.ccompile)
which - hopefully - GenC() does not raise :-)
cheers,
holger
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