JavaScript - testing tools: Jasmine (BDD), JsUnit, Karma (test runner)

1. Jasmine http://jasmine.github.io/ is the priority for testing, due to its BDD approach. 
2. JsUnit is an option (w/o BDD):http://www.jsunit.net/
3. Karma http://karma-runner.github.io/0.12/index.html - it is JavaScript test runner.