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Pain free coffeescript testing under Rails 3.1
Ruby CoffeeScript JavaScript
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README.md

Jasminerice

Utilizing Jasmine and taking full advantage of the Rails 3.1 asset pipeline. Jasminerice removes any excuse YOU have for not testing your out of control sprawl of CoffeeScript files. This project rocks and uses the MIT-LICENSE.

Headless Testing

See guard-jasmine for details.

Installation

This is a gem specifically for Rails 3.1. Just include it in your Gemfile:

group :development, :test do
  gem "jasminerice"
end

The engine is automatically mounted into your application in the development and test environments. If you'd like to change that behavior, you can override the array Jasminerice.environments in an initializer.

Usage

CoffeeScripts

Create a file spec/javascripts/spec.js.coffee with the following content:

#=require_tree ./

This pulls in all your specs from the javascripts directory into Jasmine:

spec/javascripts/*_spec.js.coffee
spec/javascripts/*_spec.js
spec/javascripts/*_spec.js.erb

The Rails 3.1 asset pipeline using Sprockets and Tilt ensure conversion.

As well you can use the #require dependency mechanisms in your specs to pull dependencies. Here's an example spec/javascripts/foo_spec.js.coffee:

#= require foo
#= require bar

describe "Foo", ->
  it "it is not bar", ->
    v = new Foo()
    expect(v.bar()).toEqual(false)

describe "Bar", ->
  it "it is not foo", ->
    v = new Bar()
    expect(v.foo()).toEqual(false)

Stylesheets

For including stylesheets in your specs, Jasminerice uses spec/javascripts/spec.css. Use Sprockets directives to include the right css files:

/*
 *= require application
 */

Fixtures

Jasminerice makes files located in the spec/javascripts/fixtures directory available as fixture. For example, a file spec/javascripts/fixtures/baz.html.haml with the following content:

%h2 Test Fixture
%p Using fixtures

is made available under the URL /jasmine/fixtures/baz. Since Jasminerice automatically makes a patched version of jasmine-jquery available in your specs, you can load the baz fixture in your spec with:

loadFixtures 'baz'

Helper Methods

You can declare Jasminerice::HelperMethods (perhaps put inside lib/) to make helpers available to jasminerice fixtures.

Start server

Now start your server

rails s

Goto

http://localhost:3000/jasmine

and there are your specs.

Compatibility with Require.js

If you use Require.js in your project and need to load your modules in your jasmine specs, there is an option to prevent jasminerice from automatically executing the test runner before the modules are defined. This enables you to start the execution manually whenever you want in your spec/javascripts/spec.js.coffee file:

#= require your/specs/and/other/stuff
# at the end of this file add:

jasmine.rice.autoExecute = false

define 'jasmine.waitsfor.requirejs', ->  
require ['jasmine.waitsfor.requirejs'], ->
  jasmine.getEnv().execute()

The shown example defines a dummy module in require.js that is required immediately on the next line. This is a simple hack to wait until require.js has initialized all modules and start the jasmine runner after that.

Of course you can use jasmine.rice.autoExecute = false also for all other cases where you need to control when your specs should be executed!

Author

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