JSFUnit is built on top of Cactus, which means that the tests actually run inside the container. So when you run the test from Eclipse it needs to deploy your application to the server and then call the ServletRedirector.
The Cactus site has instructions for doing this with Eclipse and other environments.
My preference is to just use Maven and the Cargo plugin.
For Maven: http://wiki.jboss.org/wiki/JSFUnitWithMaven
For Ant: http://wiki.jboss.org/wiki/JSFUnitWithAnt
My long term plan is to fully integrate JSFUnit with the JBoss Developer Studio, which is based on Eclipse. This will happen sometime after JSFUnit 1.0 goes final.
Ok, thanks for the info