.gitignore

dist-newstyle

cabal-doctest-tmp.cabal

cabal-version:      3.0
name:               cabal-doctest-tmp
version:            0
license:            MIT
license-file:       LICENSE
author:             Kazuki Okamoto (岡本和樹)
maintainer:         [email protected]
build-type:         Custom

custom-setup
 setup-depends:
   base >= 4 && <5,
   cabal-doctest >= 1 && <1.1

common warnings
    ghc-options: -Wall

library
    import:           warnings
    exposed-modules:  MyLib
    build-depends:    base ^>=4.20.2.0
    hs-source-dirs:   .
    default-language: Haskell2010

test-suite test
    import:           warnings
    default-language: Haskell2010
    type:             exitcode-stdio-1.0
    hs-source-dirs:   .
    main-is:          main.hs
    build-depends:
        base ^>=4.20.2.0,
        cabal-doctest-tmp,
        doctest

LICENSE

Copyright (c) 2025 Kazuki Okamoto (岡本和樹)

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

main.hs

module Main where

import Build_test (flags, pkgs, module_sources)
import Data.Foldable (traverse_)
import System.Environment (unsetEnv)
import Test.DocTest (doctest)

main :: IO ()
main = do
    traverse_ putStrLn args -- optionally print arguments
    unsetEnv "GHC_ENVIRONMENT" -- see 'Notes'; you may not need this
    doctest args
    where
      args = flags ++ pkgs ++ module_sources

MyLib.hs

module MyLib (someFunc) where

-- |
--
-- >>> someFunc
-- someFunc
someFunc :: IO ()
someFunc = putStrLn "someFunc"

Setup.hs

module Main where

import Distribution.Extra.Doctest (defaultMainWithDoctests)

main :: IO ()
main = defaultMainWithDoctests "test"

$ cabal test .
Build profile: -w ghc-9.10.3 -O1
In order, the following will be built (use -v for more details):
 - cabal-doctest-tmp-0 (file main.hs changed)
Preprocessing library for cabal-doctest-tmp-0...
Building library for cabal-doctest-tmp-0...
Preprocessing test suite 'test' for cabal-doctest-tmp-0...
Building test suite 'test' for cabal-doctest-tmp-0...
[1 of 1] Compiling Main             ( main.hs, dist-newstyle/build/aarch64-osx/ghc-9.10.3/cabal-doctest-tmp-0/build/test/test-tmp/Main.o ) [Source file changed]
main.hs:3:1: error: [GHC-87110]
    Could not find module ‘Build_test’.
    Use -v to see a list of the files searched for.
  |
3 | import Build_test (flags, pkgs, module_sources)
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^