When building this nix expression I get the following failure:
$ nix-build
...
running tests
Running 1 test suites...
Test suite test-myLib: RUNNING...
test-myLib: /tmp/nix-build-myLib-0.0.0.drv-0/hs-test-failure-nix/Lenna.png doesn't exist!
The reason is that the test suite can't find the data file Lenna.png because
the Paths_myLib module specifies the wrong paths. Running the test-suite
manually works if I set the environment variable myLib_datadir=data:
$ nix-shell --command 'cabal configure --enable-tests; cabal build; myLib_datadir=data dist/build/test-myLib/test-myLib'
Also interesting is that it also fails if I use cabal test instead of running
the test executable manually:
$ nix-shell --command 'cabal configure --enable-tests; cabal build; myLib_datadir=data cabal test'
...
Running 1 test suites...
Test suite test-myLib: RUNNING...
test-myLib: /home/bas.van.dijk/development/hs-test-failure-nix/Lenna.png doesn't exist!
Any idea how to get the test suite to run when building with nix-build?