OSGi Testing
More recently, you should have a look at Pax Exam: http://team.ops4j.org/wiki/display/paxexam/Pax+Exam
This is the current effort at OPS4J related to testing.
Spring Dynamic Modules has excellent support for testing OSGi bundles.
There is a dedicated open source OSGi testing framework on OPS4J (ops4j.org) called Pax Drone.
You might want to have a look at Pax Drone ([http://wiki.ops4j.org/confluence/x/KABo]) which enables you to use all Felix Versions as well as Equinox and Knopflerfish in your tests.
Cheers, Toni