In this chapter, we learned how to combine a variety of tools to test your Backbone applications. We learned the difference between TDD and BDD, as well as the differences between major testing libraries such as QUnit and Jasmine. We explored in depth how to use the Mocha framework to create a testing suite and how to use the Sinon library to mock out parts of your code within that suite.

In the next chapter, we'll look into a variety of other third-party tools that can help you create Backbone applications. We'll look at general-purpose tools, such as the Require.js dependency management system, and Backbone-specific tools, such as BackGrid and BackSupport.