#261 Testing JavaScript with Jasmine (revised)

I like to wrap my classes on a global namespace such as:

@App = new Object

And then:

class App.CreditCard

Nice episode!

I have issues trying to test blocking input into a text field. I made a jQuery plugin that forbids inputing number, spaces, or chars, but since triggering keypress, keyup or keydown dont actually print the value into the text field (it trigger the event but does not puts a value there) i have no way of making the correct expectation (not even with the sendkeys plugin).

Anyone knows how to test this kind of things?

Regarding the difference between

class Mine

@Mine = Mine

and

class @Mine

seems to be local only, that is, that the implicit declaration will not expose Mine in the local scope, which might be a pitfall
at first.

Ryan,

So am I right in thinking that I have to invoke the methods that would otherwise have been called on page load? That is, we cannot rely upon DOM events firing for our fixtures? Integration testing is where you would want to test that (or call the function manually in the Jasmine test)?

Anyone know the key differences between jasminerice and evergreen?

If you don't use notification services like growl, put 'notification :off' at top of your Guardfile, and you won't see that notice when tests start up.

Thanks Ryan, I was wondering if you guys know why I keep getting a: "CreditCard is not defined" error? Even after following your tutorial word for word.

http://stackoverflow.com/questions/11396650/why-does-jasmine-ruby-not-find-my-js-class

Thanks for the tutorial Ryan. Has something changed with the Asset Pipeline in Rails 4 beta that I'm not aware of? After following your screencast, when I visit http://localhost:3000/jasmine, none of my assets are being loaded. The JavaScript and CSS tags are referencing things like http://localhost:3000/jasmine/assets/jasmine.js?body=1 instead of http://localhost:3000/assets/jasmine.js?body=1 Do you have any ideas? I've been reading through the source of both Jasminerice and Rails and can't seem to figure this out. Thanks!

Jasmine can have problems if you have a catchall route at the end of your routes.rb file. To solve, you can add

if Rails.env.development?
  mount Jasminerice::Engine => '/jasmine'
end

before the catchall in routes.rb

Hello!

Does anybody know if Travis CI will run this type of tests? Having a lot of trouble finding info. on that particular subject.

fyi I just installed teabag, a new javascript runner for rails apps, looks really nice https://github.com/modeset/teabag Support asset pipeline, coffeescript, headless, and more.

Hi Jose,

I cannot precisely answer your question regarding Travis CI. However you can find an article which covers the setup of TeamCity CI for automated headless testing of Javascript code - both Jasmine and CasperJS - in detail here:

http://www.jrubyonrails.de/2013/03/continuous-integration-for-jasmine--and-casperjs-tests.html

It might be a good starting point.