Tests in Cabal

Henning Thielemann lemming at henning-thielemann.de
Wed Jan 9 08:49:08 EST 2008

On Wed, 9 Jan 2008, Duncan Coutts wrote:

> On Wed, 2008-01-09 at 10:27 +0000, Adrian Hey wrote:
> > Is this really the way tests are supposed to be included?
> >
> > It doesn't seem workable to me. I wonder if it would be better to just
> > build the lib first (without tests) and then separately build one or
> > more test executables?
> >
> > What does everyone else do about this?
> I've only seen one package that actually uses tests integrated into the
> Setup.hs. So it seems everyone just runs tests manually. This is a
> fairly large hole in the Cabal story at the moment imho.
> Part of the problem is that we don't support custom Setup.hs stuff very
> well, we encourage people to use the simple build system. But for tests,
> even if it used the simple build system we'd end up making it use the
> custom flavour just to run some tests. It's not very satisfactory.
> I wonder if we shouldn't move tests into their own file completely.

... as it is planned for executables, right? I used the Cabal test
mechanism once, but it was not portable between different versions of
Cabal. Thus I added an Executable stanza to the Cabal file and run the
resulting test binary by darcs. Of course I think that in the long run
tests should be managed by Cabal somehow in order to let Hackage check
uploaded packages against their test suites or in order to let compiler
implementors check whether new compiler versions break existing code.

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