If you don't want a separate library, use the second Erik's suggestion
from that thread.
* Richard Cobbe
What's the preferred way to write a cabal configuration file for a package that contains an executable and a test suite? The only thing I've found that seems to work is to put a thin wrapper Main.hs into the executable, put all of the actual code into the library, and then have the test-suite include the library in its build-depends list.
This works, but I find it mildly annoying that I have to separate the code out in this fashion -- especially since the unit tests require me to expose modules in my library that aren't really part of the library's public interface.
In more detail:
This is a follow-up to a thread I posted back on Feb 2; you can see it on GMane at http://thread.gmane.org/gmane.comp.lang.haskell.cafe/109374. The original example (tarball attached to the first message in that thread) was a package structured as a library with unit tests. After acting on Erik's suggestion to put the library and test-suite source in different directories, I was able to compile the library without the type error I originally mentioned.
However, this isn't really the package structure I want. The package is actually intended to produce a standalone executable, not a library. My original example used a library for reasons that I don't honestly remember -- I think I more or less stumbled upon that structure as something that more or less worked, given the difficulty of getting Cabal, test suites, Happy, and Alex to all work together well.
So I tried replacing the "Library" section of the cabal file with an "Executable" section (sample tarball attached), but then I can't get the tests to compile. If I leave sample as a build-depends for the test-suite, then "cabal configure --enable-tests" fails with
Preprocessing test suite 'sample-tests' for sample-0.4... <command line>: cannot satisfy -package-id sample-0.4-inplace (use -v for more information)
If I take sample out of the build-depends list for the test-suite, then "cabal configure --enable-tests" works, but "cabal build" fails:
test-src/RunTests.hs:8:8: Could not find module `Parser' It is a member of the hidden package `ghc-7.6.3'. Perhaps you need to add `ghc' to the build-depends in your .cabal file. Use -v to see a list of the files searched for.
Either way, "cabal configure && cabal build" works fine; it's only when I try to build the test suite that things break down.
Thanks,
Richard
_______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe