He includes a test case example that sets up a test method (dataProvider) that checks the input against the assert to ensure that it matches - in those case, that it matches an integer value.

The method specified by the @dataProvider annotation returns an array or an Iterator object that contain argument arrays. For each of these arrays a test object is created that will run the test method with the argument from the array.

As test run of the instance is also included.

Starting with version 3.2, PHPUnit has support for TestNG-style @grouping of tests.

He includes an example of the style, a test case that, through the command line testing tool, can be called in portions depending on the need.