Testing

Install test dependencies

This project uses pytest and pytest-snapshot to define and run tests.

You can install these dependencies by running:

pip install -r tests/requirements.txt

Then, make sure pytest is installed and in your $PATH by running:

pytest --version

Ensure that the command returns some version greater than 7.

Run the tests

You can execute all tests in the tests directory by running:

pytest tests

To execute a specific test file, you can run:

pytest <file>

Further, to execute a specific test function within a particular test file, you can run ...

pytest <file>::test_<function_name>

Update the snapshots

We use snapshot testing to ensure the ASTs do not suffer from regressions. When needed, you can regenerate the snapshots using:

pytest --snapshot-update

Ensure that the resulting snapshots make sense before commiting them.