# FlexUnit
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.
There are two major releases of FlexUnit: FlexUnit 4 and FlexUnit 0.9. A short synopsis of each is outlined below along with a redirect to walkthroughs and additional information.
### FlexUnit 4
FlexUnit 4 is a metadata-test driven unit testing framework based on the functionality of JUnit 4.5. It contains support for FlexUnit 0.9 and Fluint testing frameworks.
For more information on FlexUnit 4 [click here][1]
### FlexUnit 0.9 FlexUnit 0.9 is a testing framework based on JUnit 3 functionality.
For more information on FlexUnit 0.9 [click here][2]
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[1]: http://docs.flexunit.org/index.php%3Ftitle%3DMain_Page
[2]: http://opensource.adobe.com/wiki/display/flexunit/About