The Javadoc for the org.apache.axis2.transport.testkit package gives a high level overview of how the test kit works. Since the Javadoc has not yet been published, you need to generate it from the sources. In the root folder, execute the following command:
mvn install site
The Javadoc is generated in target/apidocs.
Frequently asked questions
How can I just run one test in my debugger?
Most development environments assume that the test case name identifies a method in the test class. When asked to execute a single test, they will try to execute the test case corresponding to that method. Since the testkit builds test suites dynamically, this will not work.
For the moment the only way to run a single test case is to temporarily add an exclusion rule that filters out all test cases but the one you want to debug.