Writing testable JavaScript

[bitpshr]

I wanted to make a note of a topic that I felt could be of value for emerging Web developers. I am happy to submit a PR with content if I can find the time and if you think it is a worthy topic to add.

As Web apps grow in complexity, so too does the need for properly-architected codebases that are testable. By "testable" Web apps, I mean JavaScript that meets the following criteria:

• no closured modules or hidden / shared state
• simple, single-purpose functions
• loosely-coupled DOM interaction / separation of logic and presentation

Other areas of discussion that could fall under this topic are:

• Unit testing vs. functional testing
• Selenium vs. PhantomJS
• Continuous integration
• Available solutions (Intern, Karma, etc.)

I mainly wanted to get this down so I didn't forget, and will try to vet it out further if time permits. Cool course!

[parente]

Any and all contributions welcome. If you want to write up some materials around The Intern or Karma or ... , by all means. Heck, if you wanted to burn some gas and be a "guest non-lecturer" at one of the meet-ups, that'd be cool too.

I did have a session planned for BDD but using Python, Gherkin, and Behave since I think seeing the English spec that goes with the tests helps clarify the testing mindset. A follow-on about web testing in particular would fit in fine.