What is a good unit testing framework for a JavaScript project using Backbone.js, grunt, and phantom.js?

Hey all, I am working on a large enterprise JavaScript project and have to chose a unit testing framework before we go ahead. The unit testing will mostly test backbone.js scripts. I am currently trying to decide between Jasmine/ http://Intern.io/ quint. I wanted quoras input on the subject. Can anyone speak to the pros and cons of each, other suggestions welcome. We are using grunt and phantom.js. Thanks quora!
Answer:

For unit testing, the choice for me is usually between Jasmine and Mocha+Chai+Sinon. Most new projects in JS I see going on usually have their unit tests in one of those frameworks. Mocha's selling point is its flexibility (which means you have to pair it with Chai for assertions and Sinon for stubs/mocks). However, Jasmine and Mocha+Chai+Sinon are both really really similar, so it depends on whether you want the pick-and-choose approach or the batteries-mostly-included approach (Jasmine). One thing to note is that with Jasmine, you will want to pair it with jasmine.async because Jasmine's builtin async testing sucks. I've never used http://theintern.io, but it seems really interesting. I'll have to look into it. I've never used QUnit so I can't comment on that.

Brian Chu at Quora Visit the source

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