On Sun, 13 Mar 2011, Thomas Tuegel wrote:
The hope is that once the library interface is finished, the QuickCheck author(s) would choose to support it directly. Then, you wouldn't need cabal-test-quickcheck{1,2} and you could write test suites that work with either version.
I would also prefer it this way.
I am unhappy about the naming PureTestable vs. ImpureTestable. As part of a fundamental package like Cabal it further fixes the ubiquitous confusion about purity in Haskell. I propose to rename as follows:
I am also unhappy with the interface (and I wrote it!). We have known for a long time that we were going to change this, which is why it was never enabled in a released version of Cabal.
But ImpureTestable is exported from the Cabal-1.10 that is shipped with GHC-7.0.2.
I recently submitted a patch which greatly improves the detailed interface; this is one issue in particular that it addresses. That patch is not yet in the darcs repository for Cabal, but if you're going to develop a test suite for the detailed interface, I would recommend that you wait until it is, rather than develop against an obsolete interface. If you want to target released versions of Cabal, you could instead develop your test suite against the exitcode-stdio interface, which is available now.
I prefer to convert my test-suites only once, thus I'll wait. When running 'cabal test' within a darcs test run, then darcs removes the entire directory after completing the tests. Thus I cannot see the log files. When running the test manually I see the output from the tests in the terminal.