During the development of the test case, it is important to run the test case for just one module. By default, the technical name of the module is added as a tag, so you can use the module's technical name with the --test-tags option. For example, if you want to run test cases for the my_library module, then you can run the server like this:

./odoo-bin -c server.conf -i my_library --test-tags=my_library