I have been passionate about Test Driven Development for many years.
Its a discipline that once learned, not only improves the reliability of the software developed but also improves the quality of the software as the act of creating the tests ensures that when you start developing you have a good understanding of the approach and considerations needed for the development.
For JavaScript there are many well known testing libraries and I have used a number of them successfully but for a recent development I decided to create my own testing module. I did this partly as an exercise to maybe improve my test driven processes but also because I truly believed that to get the module I wanted would not be too difficult.
So I created the NPM module jt_test which you can find on NPM.
For more information please check out the code and documentation on NPM and github (link on the npm page)
Its worked well so far for me and no doubt I will improve it over the coming months