doc/dev/testing.rst
Polybar uses googletest <https://google.github.io/googletest/>_ as its
testing and mocking framework.
Tests live in the tests/ directory; they can be enabled during cmake with
-DBUILD_TESTS=ON and compiled with make all_unit_tests.
Each test gets its own executable in build/tests, which can be executed to run
a specific test.
Running all tests is preferably done with the following command:
.. code-block:: shell
make check
This runs all available tests and prints the output in color for failed tests only.
All new tests need to be added to the tests/CMakeLists.txt file. Have a look
at the other unit tests in tests/unit_tests to see how to write tests for your
code.