QUnit - What is QUnit? QUnit is a powerful, easy-to-use JavaScript unit testing framework. It's used by the jQuery, jQuery UI and jQuery Mobile projects and is capable of testing any generic JavaScript code, including itself!
rspec-given - Given/When/Then keywords for RSpec Specifications https://github.com/jimweirich/rspec-given
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Jasmine - Behavior-Driven JavaScript
Karma - Spectacular Test Runner for JavaScript
UnitJS - Unit testing framework for Javascript