Generate tests

[keiravillekode]

No description provided.

[github-actions]

This PR touches files which potentially affect the outcome of the tests of an exercise. This will cause all students' solutions to affected exercises to be re-tested.

If this PR does not affect the result of the test (or, for example, adds an edge case that is not worth rerunning all tests for), please add the following to the merge-commit message which will stops student's tests from re-running. Please copy-paste to avoid typos.

[no important files changed]

For more information, refer to the documentation. If you are unsure whether to add the message or not, please ping @exercism/maintainers-admin in a comment. Thank you!

[keiravillekode]

See first commit for examples of generated tests.

A minor issue is run-length-encoding generates two "empty string" test functions with the same name, one for encode and one for decode. We can either work around this or improve the generator, for example in a later PR.

[keiravillekode]

See first commit for examples of generated tests.

A minor issue is run-length-encoding generates two "empty string" test functions with the same name, one for encode and one for decode. We can either work around this or improve the generator, for example in a later PR.

Improved generator to deal with this: each exercise can define a describe(case) function. run-length-encoding will use this, most exercises will not need it.

[keiravillekode]

For examples of generator output, see
fd79507
e9871ba