# Testing The easiest way to run the tests is to invoke `tox` on the command line. You will need to install the test requirements, which can be found in the ``setup.py`` file. A good way to get started is to install the development version of the linter by doing ``pip install -e .[test]``. To be able to fully test the linter, you will need both MySQL and PostgreSQL databases running. You can either tweak the ``tests/test_project/settings.py`` file to get your DB settings right, or to have databases and users corresponding to the default Travis users.