M.hs

module M where

runtests.sh

#/bin/bash
cabal configure --enable-test
cabal repl <<< "import Data.Map"

test.hs

module Main where
import Data.Map
main = print ()

tst.cabal

name:                tst
version:             0.1.0.0
license-file:        LICENSE
author:              aavogt
maintainer:          [email protected]
build-type:          Simple
cabal-version:       >=1.10

library
  exposed-modules:     M
  build-depends:       base >=4.6 && <4.7
  default-language:    Haskell2010

test-suite test1
  type: exitcode-stdio-1.0
  main-is:  test.hs
  build-depends:    containers

./runtests.sh fails with:

:
Could not find module Data.Map' It is a member of the hidden packagecontainers-0.5.0.0'.
Perhaps you need to add `containers' to the build-depends in your .cabal file.