To test that the program functions correctly, relax possesses an inbuilt test suite. The suite is a collection of simple tests which execute or probe different parts of the program checking that the software runs without problem. The test suite is executed by running relax using the command
$ relax -test-suite
Alternatively the three components of the test suite - system tests, unit tests, and GUI tests - can be run separately with
$ relax -system-tests
$ relax -unit-tests
$ relax -gui-tests
The relax user manual (PDF), created 2016-10-28.