Having promised it in the first post on how to do Group By in CakePHP I worked on an array() version for the group statement in Model::find() calls. So I implemented it.

His code shows the calls to find() the grouped information and accompanying unit test assertEquals calls to check that the results are correct. His examples show a few different ways to accomplish the same thing.

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.