No output for successful test runs

[techmindful]

elm-test seems to only output test cases that failed, and omits the ones that succeeded. Sometimes the information on successful test cases is useful. For example, I'm implementing interactive coding on my webpage, and using elm-test on the backend to run the code. I would like to tell the user which test cases their code got right, on top of which ones they got wrong.

[gampleman]

Perhaps for your use case using one of the machine readable output formats might be the best? They do indeed output all the tests run.

[techmindful]

@gampleman I should've elaborated a lot more and mentioned that I've tried the --report json option. It does output passed test cases. However, there is no expected and actual values included. This seems to be because information of expected and actual values are included in "failures". But a passed test case doesn't have failure. The code around here may be relevant.

For my case it would have been very convenient if the frontend simply hears about elm-test output from server, and display each test case's expected and actual values.

[mpizenberg]

@techmindful I'm answering a little bit late but I think you might be interested in the setup that was done for the exercism platform: https://github.com/exercism/elm-test-runner

This repo holds a docker containing a program composed of two pieces, (1) a setup for the elm-test-rs test runner to output a report in the exercism json format, and (2) a code snippet extractor, aimed at extracting the expectations from the test code. Both outputs are merged together to generate the final json in the exercism format with both the tests results and associated code snippets for test expectations.

Of course the repo has limitations and some of the building blocks for the test extractor take advantages of the constraints imposed by the exercism setup, but nonetheless, I thought this might interest you.

[lydell]

FYI I believe elm-test-rs 2.0.1 prints even successful tests when you pass the verbose -v flag.