test-rdf4h: rdf-tests/turtle/manifest.ttl: openFile: does not exist (No such file or directory)

[juhp]

When building for Stackage LTS 8:

/tmp/stackage-build13/rdf4h-3.0.1$ dist/build/test-rdf4h/test-rdf4h
test-rdf4h: rdf-tests/turtle/manifest.ttl: openFile: does not exist (No such file or directory)

[robstewart57]

@juhp the instructions for running the tests for this library are in the README.md file:

$ git submodule update --init --recursive
$ git submodule foreach git pull origin gh-pages
$ stack test

I could I suppose integrate this into my Test.hs (main) file for the test suite, I thought it cleaner to do the way above.

Do you know of a way to integrate the above git commands into a script for stackage to pick up before running stack test ? Either in the stack.yaml file, or somewhere else?

[juhp]

AFAIK stack test requires the tests to be integrated.

[JonathanReeve]

Is there a workaround for this? I can't seem to build rdf4h on nixos because of this bug.

[robstewart57]

@JonathanReeve I'm not a nixos user.

Can nixos not run:

$ git submodule update --init --recursive
$ git submodule foreach git pull origin gh-pages

Before

$ stack test

?

[JonathanReeve]

Nix runs tests for whatever package (Haskell or otherwise) has tests, and installation will fail if the tests fail. So any package that depends on rdf4h will fail to install if rdf4h runs tests that fail. Is there a way to put those git commands in the test suite somehow? Or put the test suite in the submodule?

Another option is to add rdf4h to the list of packages that Nix skips checks for, but ideally it could still run the tests, and the tests would pass.

BTW you can reproduce this, even if you're not on nixos, by installing Nix and running nix-shell -p haskellPackages.rdf4h.

[robstewart57]

@juhp @JonathanReeve can there be any workaround for this? This rdf4h library now passes all W3C RDF parser unit tests for NTriples, Turtle and XML, and it'd be good to have rdf4h on stackage.

The TravisCI automated testing works out-of-the-box, because when it spots the rdf-tests submodule in this repo, it runs git submodule update --init --recursive to obtain the W3C data files needed for testing, which seems like an elegant solution to obtain all the files:

https://travis-ci.org/robstewart57/rdf4h/jobs/631996835#L182

Do similar mechanisms not exist in stackage/nix?