Over view of testing using Mocha, Chai and Sinon in Ember applications.

1. Mocha, Chai and Sinon
@adstage @adstage
Andrew Dixon
andrew@adstage.io

2. @adstage
Senior So(ware Engineer at AdStage
Has been launching companies since the last
millennium. Worked on everything from the
Linux Kernel to AmbiBous SPAs with Ember.
Andrew
Dixon
RAISED
AdStage All-­‐In-­‐One Ad PlaHorm
Build, deploy & manage ad campaigns
across Google, Bing, Facebook, TwiOer &
LinkedIn.
@adstage

3. “The only thing we know about the future is that it
will be different.”
-­‐ Peter Drucker
@adstage

4. Cassandra
Rails
Postgres

5. Pros
* Stable -­‐ first release in 2008
* Large Community
* IntegraBons
Cons
* Syntax
* ConfiguraBon
(e.g. asserBon libraries)
* Asynchronous TesBng
* Headless Run Support

6. Pros
* NodeJS NaBve
(i.e. headless out of the box)
* ExcepBon on Failure
(only req. for asserBon lib)
* Asynchronous TesBng
Cons
* Support
(i.e. no Ember happy path)
* IntegraBons

11. Sandbox
* Great for OrganizaBon
* Call `restore()` Once

12. Spies
* Records arguments,
return values and
excepBons
* Wrap ExisBng
or Anonymous
* Maintains Behavior

13. Stubs
* Spies with Defined
Behavior
* Does Not Call
ExisBng FuncBon
* Useful for Forcing
Errors

14. Mocks
* Stubs with Defined
ExpectaBons
* Use Only for Method
Under Test

15. How is AdStage Tes6ng?
• Makefile to run
specs with NodeJS
• HBS Compiled to JS
• jsDOM
• RequireJS to load
only the components
being tested

16. How is AdStage Tes6ng?
• Makefile to run
specs with NodeJS
• HBS Compiled to JS
• jsDOM
• RequireJS to load
only the components
being tested

17. What About Ember-­‐CLI?
• InstallaBon is Stupid
Easy
• Specs are Transpiled
• Specs Run in the
Browser

18. What About Ember-­‐CLI?
• InstallaBon is Stupid
Easy
• Specs are Transpiled
• Specs Run in the
Browser