Re: [Haskell-cafe] The State of Testing?

How do you control where the .mix files are generated? GHC is putting them in .hpc/, but I'm getting errors like "hpc: can not find test-0.0.0/Data.Test in ["./dist/hpc/mix/test-0.0.0"]". Mike Craig On Tue, Feb 7, 2012 at 5:12 PM, Ryan Newton wrote:

By the way, has anyone else had trouble with "cabal test" diverging?

I've been running into this issue with cabal 0.10.2, but ONLY in conjunction with GHC 6.12.3. It's hard to make a small reproducer for (and therefore I haven't filed a bug yet), but you can see the below Jenkins run stalled for 2.5 days, whereas it should take minutes:

http://tester-lin.soic.indiana.edu:8080/job/monad-par_github_master/JENKINS_...

Note that it *doesn't* burn CPU -- it deadlocks rather than spins.

I replaced "cabal test" with a direct call to the test executable and I haven't seen this problem since.

-Ryan

On Tue, Feb 7, 2012 at 4:23 PM, Austin Seipp wrote:

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If you're writing a library, you need to compile the library with `-fhpc`, i.e. put it in the library stanza, not the testsuite stanza, and then you can compile the test program using your library - the resulting 'tix' file will contain the library coverage reports. You can link a HPC-built library into an executable not compiled with HPC just fine.

Normally I only compile the library under HPC mode, link it in a test, and distribute the results from that. That way your coverage reports don't include the test module (which may or may not be relevant.)

I normally add a cabal flag called 'hpc' which optionally enables coverage reports for my library, e.g.

flag hpc default: False

library ... ... if flag(hpc) ghc-options: -fhpc

Then when you want coverage reports, just say 'cabal install -fhpc --enable-tests' and the resulting properties executable will spit out the results when run.

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Thanks for the advice, all. I've got test-framework, quickcheck, and cabal's test-suite all working together nicely.

Cabal seems to support using hpc to check test coverage. If I add -fhpc to the ghc-options under the test-suite, I get output like "Test coverage report written to dist/hpc/html/tests/hpc_index.html" and "Package coverage report written to dist/hpc/html/test-0.0.0/hpc_index.html", but those

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files are just empty tables. How does this work?

Mike Craig

On Thu, Feb 2, 2012 at 8:45 PM, Ivan Lazar Miljenovic wrote:

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On 03/02/2012 12:22 PM, "Johan Tibell" wrote:

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On Thu, Feb 2, 2012 at 4:46 PM, Conrad Parker wrote:

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On 3 February 2012 08:30, Johan Tibell

wrote:

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> On Thu, Feb 2, 2012 at 4:19 PM, Conrad Parker < conrad@metadecks.org> > wrote: >> >> I've followed what Johan Tibbell did in the hashable package: > > > If I had known how much confusion my childhood friends would unleash > on the > Internet when they, at age 7, gave me a nickname that's spelled > slightly > differently from my last name, I would have asked them to pick > another one. > ;)

lol, sorry, I actually double-checked the number of l's before writing that but didn't consider the b's. For future reference I've

On Tue, Feb 7, 2012 at 3:16 PM, Michael Craig wrote: html produced a

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handy chart:

Letter | Real-name count | Nickname count -------+-----------------+--------------- b | 1 | 2 l | 2 | 0 -------+-----------------+--------------- SUM | 3 | 2

Excellent. I will tattoo it on my forehead.

There is, of course, a simpler (but not necessarily easier :p) solution: change your name to match your nickname!

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-- Regards, Austin

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