AsUnit is the only open-source unit test framework for ActionScript that works with ActionScript 2, 2.5, 3.0, Flash Authoring (back to MX and up to CS4), Flex Builder, the Flex Framework (2 and 3), MTASC, MXMLC, and any version of Flash Player since version 6, including AIR and even FlashLite. We can even emit JUnit-compatible XML results. There is no dependency on any external tooling or framewor