I have been trying to figure out what is the best way to write/run automated jasmine tests in visual studio. Currently, I am using jasmine with Resharper (using PhantomJS) and t
DISCLAIMER: I am the author of Chutzpah so take anything I say with a pinch of bias.
Both Karma and Chutzpah are both good tools to be able to run JavaScript unit tests. Karma is the more active open source project and has a large group of people contributing to it. It is very configurable and lets you (as Sean says) target browser besides Phantom. There are VS plugins for it as well but I have not used them much.
Chutzpah is a mature product that is also very configurable. It will always run your tests in PhantomJS but does let you open them in a new browser in order to debug. Chutzpah VS integration is mature and seamless.