Interfaces
 InterfaceDescription
 IRunnerBuilder An IRunnerBuilder is a strategy for constructing IRunners for classes. Only writers of custom runners should use IRunnerBuilders.
 IStatement Represents one or more actions to be taken at runtime in the course of running a FlexUnit test suite.
Classes
 ClassDescription
 FrameworkMethod Represents a method on a test class to be invoked at the appropriate point in test execution.
 ParameterizedMethod Used to expand on the number of methods in a class in the presence of a TestNG style Parameterized runner where a Test is provided a dataProvider.
 RunnerBuilderBase The RunnerBuilderBase is used as a base by other runner builders in FlexUnit4.
 TestClass The TestClass wraps a class that is to be executing, providing method validation and annotation searching.