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https://github.com/exercism/gleam-test-runner


https://github.com/exercism/gleam-test-runner

community-contributions-accepted exercism-test-runner exercism-tooling

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# Exercism Gleam Test Runner

The Docker image to automatically run tests on Gleam solutions submitted to [Exercism].

## Run the test runner

To run the tests of an arbitrary exercise, do the following:

1. Open a terminal in the project's root
2. Run `./bin/run.sh `

Once the test runner has finished, its results will be written to `/results.json`.

## Run the test runner on an exercise using Docker

_This script is provided for testing purposes, as it mimics how test runners run in Exercism's production environment._

To run the tests of an arbitrary exercise using the Docker image, do the following:

1. Open a terminal in the project's root
2. Run `./bin/run-in-docker.sh `

Once the test runner has finished, its results will be written to `/results.json`.

## Run the tests

To run the tests to verify the behavior of the test runner, do the following:

1. Ensure you have Gleam, Erlang, and jq installed on your macOS, Linux, or
similar machine.
1. Open a terminal in the project's root
2. Run `./bin/setup-locally.sh`
3. Run `./bin/run-tests.sh`

These are [golden tests][golden] that compare the `results.json` generated by running the current state of the code against the "known good" `tests//results.json`. All files created during the test run itself are discarded.

When you've made modifications to the code that will result in a new "golden" state, you'll need to generate and commit a new `tests//results.json` file.

## Run the tests using Docker

_This script is provided for testing purposes, as it mimics how test runners run in Exercism's production environment._

To run the tests to verify the behavior of the test runner using the Docker image, do the following:

1. Open a terminal in the project's root
2. Run `./bin/run-tests-in-docker.sh`

These are [golden tests][golden] that compare the `results.json` generated by running the current state of the code against the "known good" `tests//results.json`. All files created during the test run itself are discarded.

When you've made modifications to the code that will result in a new "golden" state, you'll need to generate and commit a new `tests//results.json` file.

[test-runners]: https://github.com/exercism/docs/tree/main/building/tooling/test-runners
[golden]: https://ro-che.info/articles/2017-12-04-golden-tests
[exercism]: https://exercism.io