PlasmaPy's tests are written using the pytest framework, with Nox as the test runner.

Locating tests

The tests directory contains PlasmaPy's tests. The directory structure and organization of tests largely mirrors that of src/plasmapy, which contains PlasmaPy's source code. For example, the source code of plasmapy.formulary.speeds is located at src/plasmapy/formulary/speeds.py, while its tests are located at tests/formulary/test_speeds.py

Running tests

To run tests locally, first install Nox and its dependencies with:

python -m pip install nox uv

To run all but the slowest tests, enter the top-level directory of your clone of PlasmaPy and run:

For more information, please see the section in the testing guide on running tests.