Jasmine - JS Testing Framework

Jasmine.md

TODO: Check out http://sinonjs.org/ to stub AJAX requests or just stubbing with Jasmine to test expectations

Setup for rails

• Source: https://github.com/searls/jasmine-rails
• Install PhantomJS on Mac: brew install phantomjs
• Add gem gem 'jasmine-rails' to group :test, :development
• bundle install
• Run setup: rails generate jasmine_rails:install

Note: You don't have to install the jasmine gem from Pivotal. Reference (FYI only): https://github.com/pivotal/jasmine-gem

Setup tests

• Assuming you have a file at /app/assets/javascripts/users/geolocation.js.coffee
• Add your tests to /spec/javascripts/users/geolocation_spec.js.coffee
• Sample JS test as below:

//= require users/geolocation

describe "Foo", ->
  it "does something", ->
    expect(1 + 1).toBe 2
    return
  return

Running tests

• From command line, RAILS_ENV=test bundle exec rake spec:javascript or rake spec:javascript
• From server, go to http://localhost:3000/specs or http://project.dev/specs for POW

How to use Jasmine

Refer to http://jasmine.github.io/2.0/introduction.html

Sample Jasmine Test Case

//= require users/geolocation

describe 'geolocation', ->
  user_id = 1

  it 'gets geolocation data from browser', ->
    spyOn(navigator.geolocation, 'getCurrentPosition')
    geolocation.initiate(user_id)
    expect(navigator.geolocation.getCurrentPosition).toHaveBeenCalled()

  it 'sets user_id', ->
    geolocation.initiate(user_id)
    expect(geolocation.user_id).toBe(user_id)