Unit testing portlet with cactus

Hello

I checked the features section for cactus (
http://jakarta.apache.org/cactus/features.html) and it mentions that support
for unit testing portlets is 'partly available or soon available'. I
downloaded cactus 1.8. However, did not find any classes for unit testing
portlets. So does anybody know - when cactus is going support portlets?

-Rashmi