cabal - "Could not find module ‘Test.HUnit’" Error when executing Haskell's unittest (HUnit) in CodeRunner -


i have simple unit test code haskell's hunit. use mac os x 10.10, , installed hunit cabal install hunit. 

module testsafeprelude  import safeprelude( safehead ) import test.hunit  testsafeheadforemptylist :: test testsafeheadforemptylist =      testcase $ assertequal "should return nothing empty list"                            nothing (safehead ([]::[int]))  testsafeheadfornonemptylist :: test testsafeheadfornonemptylist =     testcase $ assertequal "should return (just head) non empty list" (just 1)                (safehead ([1]::[int]))  main :: io counts main = runtesttt $ testlist [testsafeheadforemptylist, testsafeheadfornonemptylist]

i can execute runhaskell testsafeprelude.hs results:

cases: 2  tried: 2  errors: 0  failures: 0 counts {cases = 2, tried = 2, errors = 0, failures = 0}

however, when run in code runner, have error message can't find hunit module.

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coderunner launches test on different shell environment, , seems issue. if so, environment variables need added? if not, might causing problem?

enter image description here

i find ghc-pkg list coderunner not search directories in ~/.ghc contains hunit.

/usr/local/cellar/ghc/7.8.3/lib/ghc-7.8.3/package.conf.d:     cabal-1.18.1.4     array-0.5.0.0     ...     xhtml-3000.2.1

this results when executed in shell:

/usr/local/cellar/ghc/7.8.3/lib/ghc-7.8.3/package.conf.d    cabal-1.18.1.4    array-0.5.0.0    ... /users/smcho/.ghc/x86_64-darwin-7.8.3/package.conf.d    ...    hunit-1.2.5.2    ...    zlib-0.5.4.2

i added both ~/.cabal , ~/.ghc in path, doesn't work.

the problem $home setup change. used different $home coderunner, haskell searches $home/.cabal , $home/.ghc installed package.

after resetting $home correct location, works fine.


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