--saveDev flag which tells CommandBox that TestBox is a development dependency and not a production dependency./testbox folder from where you called the command./testbox_that points to testbox in the distribution folder, which is the most secure approach, or you can just place it in the webroot if you like. You can also create an application-level mapping:generate harness command will add a new /tests folder to your application with a few example tests to get you started.test-results.json and run it!/testbox mapping needs to point to the parent folder containing the system directory as all TestBox models start with testbox.system in their package path.