XUnit is to XML-oriented Programming as JUnit is to Java programs : XUnit uses Active Tags as a simple framework to write repeatable tests. With XUnit, you can well-try and improve your own Active Tags program as well as external XML processes such as...

FlexUnit is a unit testing framework for Flex and ActionScript 3.0 applications and libraries. It mimics the functionality of JUnit, a Java unit testing framework, and comes with a graphical test runner.