FitNesse. UserGuide.
TestSuites [add child]

Suites of Tests

A suite is a collection of test pages that can all be run together, and whose results are then collected for you on a single results page, and in Test History. For an example of a Suite of tests, see .FitNesse.SuiteAcceptanceTests.

Setting up a Suite page.

To create a Suite page you set the "Suite" property of that page (see Page Properties). That page will then include a "Suite" button that will execute all the test pages in that hierarchy.

Composing Suites.

There are several ways to compose a suite. You can convert a whole subwiki into a suite. You can list individual pages using cross references, and you can create queries that search all the pages for matches.

Getting suite results in XML rather than HTML format.

If you want the results in xml, simply put &format=xml in the url.