.. _sec-nixos-tests: NixOS Tests ----------- When you add some feature to NixOS, you should write a test for it. NixOS tests are kept in the directory `nixos/tests `_, and are executed (using Nix) by a testing framework that automatically starts one or more virtual machines containing the NixOS system(s) required for the test. .. toctree:: writing-nixos-tests.xml.rst .. toctree:: running-nixos-tests.xml.rst .. toctree:: running-nixos-tests-interactively.xml.rst