JSNSpec - (new release as of 11/26/2010) A JavaScript on .Net Specification framework that supports Behavior-Driven Development (BDD).
IronRubyUnit - An IronRuby on Silverlight testing framework that spports Test-Driven Development (TDD).
JSNUnit - A JavaScript on .Net Testing Framework that supports Test-Driven Development.
Learn how to install and use JSNUnit here.
Try it out in your browser first using Test-Driven JavaScript Writer.
Get more information at my blog for software development practitioners.
If you have any questions or comments about this please visit my site at www.troytaft.com.
This is a free download at this time and is subject to the ValleyHighlands Free License