This is already the second to last edition of our December series-"Countdown to The New Year: 31 Days of Ember Addons". In this series we are highlighting a new addon each day until the new year, and we hope you'll join us for the fun!
Day 30
On the 30th day of our Countdown to The New Year we want to feature an exciting Ember addon to make your test suite fun to work with: ember-exam!
Learn more about ember-exam on Ember Observer.

What It Does
ember-exam is an addon that allows to have more control over running your ember-qunit (Ember's default testing framework) and ember-mocha test suite. It extends from the default Ember CLI test command, allowing you run it as you would ember test.
Why I Like It
ember-exam allows us to run tests in parallel which can greatly reduce the overall run time of our test suite. Using the --random option of this addon, we are able to run tests in random order; this helps us to uncover interdependencies between test cases which would be hard to spot otherwise. And the exam:iterate option allows us to iterate over parts of our test suite repeatedly when tracking down brittle tests.
ember-exam is our side-kick for developing a fast, robust and reliable test suite - which makes our testing workflow in Ember more predictable, more relaxed and therefore also more fun! Check it out for yourself!
And if you already use this addon, we'd love to hear about it or similar addons that bring you joy in the comments section below!