How to set up .cabal test-suite when test file and the file under test is in different folder
automated-tests, cabal, cabal-install, haskell, unit-testing
Solution
Looks like you just need to add `src/main` to `hs-source-dirs` for test suit.
Also you can create a library with `Methods` module and make both the executable and test suite depend on the library.
There are tons of examples on hackage, e.g. doctest It's test suit "spec" uses `hs-source-dirs` and test suit "doctests" uses a library. The first approach allows to test interval functions, that are not exported by the library.
Problem
I am trying to structure my simple project in a way that it's easy for me to develop in the future. Basically I've used `cabal init` to get the basic stuff, then I created a src folder, inside that i created a main folder and a test folder, the main is for holding all source code and the test is to put all test source code. Inside .cabal I have the following: ``` . . . . test-suit Test type: exitcode-stdio-1.0 hs-source-dirs: src/test main-is: Test.hs build-depends: base executable Finance hs-source-dirs: src/main main-is: Main.hs build-depends: base ``` There are only three files Main.hs, Methods.hs, Test.hs. The Methods.hs is imported in Main.hs to get executed, and the Test.hs imports Methods.hs and tests the methods. My goal is to be able to do `cabal --enable-tests configure` then `cabal build` then `cabal test` then `cabal install`. But at the build stage I'm getting the error ``` src/test/Test.hs:2:8: Could not find module `Methods` Use -v to see a list of the files search for. ``` How do I let cabal know where Methods.hs is? Also, is there a better way to set the project up?