[Haskell-beginners] Problem using stack

[Simon Jakobi]

Hi Robert,

The reason for the "Test suite not yet implemented" message is that this is
the default behaviour of the test suite that comes with "new-template":

$ cat test/Spec.hs
main :: IO ()
main = putStrLn "Test suite not yet implemented"

BTW, stack 0.1.8.0 is fairly outdated by now, so try to run "stack upgrade".

Cheers,
Simon

2016-01-19 17:54 GMT+01:00 Robert Weisser <Robert.Weisser at gmx.com>:

> I recently installed stack via Haskell for Mac OS X
> (https://ghcformacosx.github.io/), which gave me stack 0.1.8.0 x86_64 and
> ghc
> 7.10.2.
>
> Following the User Guide (
> http://docs.haskellstack.org/en/stable/GUIDE.html),
> I tried to create the first example (hello world, naturally).  Everything
> went
> according to plan until I entered 'stack test', which failed.  The output
> was
> supposed to be, 'Test suite not yet implemented.'  I tried to find
> information
> online, but was unsuccessful.  I play with Haskell for fun and know nothing
> about cabal, so I don't know if it is a cabal issue.
>
> The error message includes 'helloworld-test:  executable not found'.
> helloworld-test is indeed missing.  I searched for it using find:
>
>   find . -name '*test'
>
> Here is the terminal session, followed by the contents of the generated
> helloworld.cabal file (with some user info removed):
>
> $ stack new helloworld new-template
> Downloading template "new-template" to create project "helloworld" in
> helloworld/ ...
> Writing default config file to:
> /Users/rpw/self/haskell/stack/user_guide/helloworld/stack.yaml
> Basing on cabal files:
> - /Users/rpw/self/haskell/stack/user_guide/helloworld/helloworld.cabal
>
> Checking against build plan lts-3.13
> Selected resolver: lts-3.13
> Wrote project config to:
> /Users/rpw/self/haskell/stack/user_guide/helloworld/stack.yaml
>
> $ cd helloworld/
>
> $ stack setup
> stack will use the GHC on your PATH
> For more information on paths, see 'stack path' and 'stack exec env'
> To use this GHC and packages outside of a project, consider using:
> stack ghc, stack ghci, stack runghc, or stack exec
>
> $ stack build
> helloworld-0.1.0.0: configure
> Configuring helloworld-0.1.0.0...
> helloworld-0.1.0.0: build
> Preprocessing library helloworld-0.1.0.0...
> [1 of 1] Compiling Lib              ( src/Lib.hs,
> .stack-work/dist/x86_64-osx/Cabal-1.22.4.0/build/Lib.o )
> In-place registering helloworld-0.1.0.0...
> Preprocessing executable 'helloworld-exe' for helloworld-0.1.0.0...
> [1 of 1] Compiling Main             ( app/Main.hs,
> .stack-work/dist/x86_64-osx/Cabal-1.22.4.0/build/helloworld-exe/helloworld-exe-tmp/Main.o
> )
> Linking
> .stack-work/dist/x86_64-osx/Cabal-1.22.4.0/build/helloworld-exe/helloworld-exe
> ...
> helloworld-0.1.0.0: copy/register
> Installing library in
>
> /Users/rpw/self/haskell/stack/user_guide/helloworld/.stack-work/install/x86_64-osx/lts-3.13/7.10.2/lib/x86_64-osx-ghc-7.10.2/helloworld-0.1.0.0-6urpPe0MO7OHasGCFSyIAT
> Installing executable(s) in
>
> /Users/rpw/self/haskell/stack/user_guide/helloworld/.stack-work/install/x86_64-osx/lts-3.13/7.10.2/bin
> Registering helloworld-0.1.0.0...
>
> $ stack exec helloworld-exe
> someFunc
>
> $ stack test
> Test suite helloworld-test executable not found for helloworld
> Test suite failure for package helloworld-0.1.0.0
>     helloworld-test:  executable not found
> Logs printed to console
>
> $ cat helloworld.cabal
> name:                helloworld
> version:             0.1.0.0
> synopsis:            Initial project template from stack
> description:         Please see README.md
> homepage:            ...
> license:             BSD3
> license-file:        LICENSE
> author:              ...
> maintainer:          ...
> copyright:           None
> category:            Example
> build-type:          Simple
> -- extra-source-files:
> cabal-version:       >=1.10
>
> library
>   hs-source-dirs:      src
>   exposed-modules:     Lib
>   build-depends:       base >= 4.7 && < 5
>   default-language:    Haskell2010
>
> executable helloworld-exe
>   hs-source-dirs:      app
>   main-is:             Main.hs
>   ghc-options:         -threaded -rtsopts -with-rtsopts=-N
>   build-depends:       base
>                      , helloworld
>   default-language:    Haskell2010
>
> test-suite helloworld-test
>   type:                exitcode-stdio-1.0
>   hs-source-dirs:      test
>   main-is:             Spec.hs
>   build-depends:       base
>                      , helloworld
>   ghc-options:         -threaded -rtsopts -with-rtsopts=-N
>   default-language:    Haskell2010
>
> source-repository head
>   type:     git
>   location: ...
> $
>
>
> Robert Weisser
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>
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