You can execute tests using the test Bakery command.
$ php bakery test
php-sqlite3 package installed and enabled. Alternatively, you can create a separate testing database and override the test_integration database settings in the testing.php environment mode from your site sprinkle.The test command will fire all tests define in UserFrosting base system along with any tests defined by the sprinkles found in your app. Those tests are executed by PHPUnit.