My talk about frontend unittesting. Karma, Mocha, Chai, Sinonjs, Require.js. Why test? What test? How test?

1. Just Test It
Karma, Mocha, Sinon.js
Artyom Trityak

2. Why test?
It’s impossible to do regression testing for big projects
Want to do refactoring - test it!
Want to deploy each sprint - test it!
Want to show how to use your module - test it!

3. What test?
Business logic

4. What test?
Business logic where?
Models
Controllers
Views

5. What test?
Business logic
Models
Controllers

6. What test?
Business logic
Models
Controllers
Shared functionality (base classes, utils etc)

7. How test: Karma
Runs your unittests in different browsers automatically:
Chrome, Phantomjs, Firefox, Safari, IE
Run-on-change
Test in real devices: phones, tablets etc

8. How test: Karma

9. How test: Sinon.js
Mock modules dependencies
Mock backend requests and responses
Mock / stub methods and objects
Check methods calledWith and callCount

10. How test: Sinon.js

11. How test: Mocha+Chai
or Jasmine
Test async behaviors
Different reports
Both fine: Mocha+Chai or Jasmine (2.0 is out)
Jasmine 2.0 supports Mocha-style «done» callback for
async tests

12. How test: Mocha+Chai
or Jasmine

13. How test: Mocha+Chai
or Jasmine

14. How test: Require.js
Test modular code
Clean state for each test

15. How test: Require.js