This repo can be used to reproduce a bug that manifests when using vscode-elm while running elm-test --watch.

These steps assume you have elm and elm-test available on your $PATH.

1. clone this repo and cd into the application folder

2. elm-test

3. observe that the test suite is okay

4. elm-test --watch

5. observe that that test suite is still okay

6. leave the watch running, and in another terminal, run this command which will touch a test file and immediatly make it:

   touch tests/TestParp.elm; elm-test make

7. observe that it's still all okay

Now it gets good:

8. kill the test runner

9. cd ../package

10. elm-test --watch

11. observe that on the first run, test suite is still okay

12. leave the watch running, and in another terminal, run this command which will touch a test file and immediatly make it:

    touch tests/TestParp.elm; elm-test make

13. Boom

    EXPECTED: the test suite should re-run as above

    ACTUAL: an error from Elm about missing packages??

    TestParp.elm changed. Rebuilding!
    -- MISSING DEPENDENCIES ----------------------------------------------- elm.json
    
    Your elm.json is missing some "indirect" dependencies:
    
        "elm/url": "1.0.0"
        "elm/virtual-dom": "1.0.2"
    
    This usually means you are editing elm.json by hand. It is much more reliable to use the elm install command instead.
    
    Compilation failed while attempting to build /home/ndc/git/elm-parp/package/tests/TestParp.elm
    Watching for changes...

This simulates what happens when vscode-elm attempt to elm-test make a test file right after saving.