dotfiles/.bash_it/docs/test.rst
2022-02-27 20:00:49 +01:00

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.. _test:
Testing Bash-it
===============
Overview
--------
The Bash-it unit tests leverage the `Bats unit test framework for Bash <https://github.com/bats-core/bats-core>`_.
There is no need to install Bats explicitly, the test run script will automatically download and install Bats and its dependencies.
When making changes to Bash-it, the tests are automatically executed in a test build environment on `Travis CI <https://travis-ci.com>`_.
Test Execution
--------------
To execute the unit tests, please run the ``run`` script:
.. code-block:: bash
# If you are in the `test` directory:
./run
# If you are in the root `.bash_it` directory:
test/run
The ``run`` script will automatically install if it is not already present, and will then run all tests found under the ``test`` directory, including subdirectories.
To run only a subset of the tests, you can provide the name of the test subdirectory that you want to run, e.g. like this for the tests in the ``test/themes`` directory:
.. code-block:: bash
# If you are in the root `.bash_it` directory:
test/run test/themes
By default, the tests run in single-threaded mode.
If you want to speed up the test execution, you can install the `GNU ``parallel`` tool <https://www.gnu.org/software/parallel/>`_\ , which is supported by Bats.
When using ``parallel``\ , the ``test/run`` script will use a number of threads in parallel, depending on the available CPU cores of your system.
This can speed up test execution significantly.
Writing Tests
-------------
When adding or modifying tests, please stick to the format and conventions of the existing test cases.
The ``test_helper.bash`` script provides a couple of reusable helper functions that you should use when writing a test case,
for example for setting up an isolated test environment.