To run all tests, invoke the runtests target using jake:

This will all tests; to run only a specific subset of tests, use:

e.g. to run all compiler baseline tests:

or to run specifc test:tests\cases\compiler\2dArrays.ts

Compiler testcases generate baselines that track the emitted .js, the errors produced by the compiler, and the type of each expression in the file. Additionally, some testcases opt in to baselining the source map output.

When a change in the baselines is detected, the test will fail. To inspect changes vs the expected baselines, use

After verifying that the changes in the baselines are correct, run

to establish the new baselines as the desired behavior. This will change the files in tests\baselines\reference, which should be included as part of your commit. It's important to carefully validate changes in the baselines.