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Guard::Jasmine Build Status

Guard::Jasmine automatically tests your Jasmine specs when files are modified.

Tested on MRI Ruby 1.8.7, 1.9.2, REE and the latest versions of JRuby & Rubinius.

If you have any questions please join us on our Google group or on #guard (irc.freenode.net).

Highlights

  • Continuous testing based on file modifications by Guard, manifold configuration by writing rules with RegExp and Ruby.

  • Fast headless testing on PhantomJS, a full featured WebKit browser with native support for various web standards: DOM handling, CSS selector, JSON, Canvas, and SVG.

  • Runs the standard Jasmine test runner, so you can use Jasminerice for integrating Jasmine into the Rails 3.1 asset pipeline and write your specs in CoffeeScript.

  • Runs on Mac OS X, Linux and Windows.

How it works

Guard Jasmine

  1. Guard is triggered by a file modification.
  2. Guard::Jasmine executes the PhantomJS script.
  3. The PhantomJS script requests the Jasmine test runner via HTTP.
  4. Rails uses the asset pipeline to get the Jasmine runner, the code to be tested and the specs.
  5. The asset pipeline prepares the assets, compiles the CoffeeScripts if necessary.
  6. The asset pipeline has finished to prepare the needed assets.
  7. Rails returns the Jasmine runner HTML.
  8. PhantomJS requests linked assets and runs the Jasmine tests headless.
  9. The PhantomJS script extracts the result from the DOM and returns a JSON report.
  10. Guard::Jasmine reports the results to the console and system notifications.

Install

Guard and Guard::Jasmine

Please be sure to have Guard installed.

Install the gem:

$ gem install guard-jasmine

Add it to your Gemfile, preferably inside the development group:

gem 'guard-jasmine'

Add guard definition to your Guardfile by running this command:

$ guard init jasmine

Jasminerice

With Rails 3.1 you can write your Jasmine specs in addition to JavaScript with CoffeeScript, fully integrated into the Rails 3.1 asset pipeline with Jasminerice.

Please read the detailed installation and configuration instructions at Jasminerice.

In short, you add it to your Gemfile:

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

and add a route for the Jasmine Test Runner to config/routes.rb:

if ["development", "test"].include? Rails.env
  mount Jasminerice::Engine => "/jasmine"
end

Next you create the directory spec/javascripts where your CoffeeScript tests go into. You define the Rails 3.1 asset pipeline manifest in spec/javascripts/spec.js.coffee:

#=require_tree ./

PhantomJS

You need the PhantomJS browser installed on your system. You can download binaries for Mac OS X and Windows from the PhantomJS download section.

Alternatively you can install Homebrew on Mac OS X and install it with:

$ brew install phantomjs

If you are using Ubuntu 10.10, you can install it with apt:

$ sudo add-apt-repository ppa:jerome-etienne/neoip
$ sudo apt-get update
$ sudo apt-get install phantomjs

You can also build it from source for several other operating systems, please consult the PhantomJS build instructions.

Usage

Please read the Guard usage documentation.

Guardfile

Guard::Jasmine can be adapted to all kind of projects. Please read the Guard documentation for more information about the Guardfile DSL.

guard 'jasmine' do
  watch(%r{app/assets/javascripts/(.+)\.(js\.coffee|js)}) { |m| "spec/javascripts/#{m[1]}_spec.#{m[2]}" }
  watch(%r{spec/javascripts/(.+)_spec\.(js\.coffee|js)})  { |m| "spec/javascripts/#{m[1]}_spec.#{m[2]}" }
  watch(%r{spec/javascripts/spec\.(js\.coffee|js)})       { "spec/javascripts" }
end

Options

There are many options that can customize Guard::Jasmine to your needs. Options are simply supplied as hash when defining the Guard in your Guardfile:

guard 'jasmine', :all_on_start => false, :specdoc => :always do
  ...
end

General options

The general options configures the environment that is needed to run Guard::Jasmine:

:jasmine_url => 'http://192.168.1.5/jasmine'  # URL where Jasmine is served.
                                              # default: http://127.0.0.1/jasmine

:phantomjs_bin => '~/bin/phantomjs'           # Path to phantomjs.
                                              # default: '/usr/local/bin/phantomjs'

Spec runner options

The spec runner options configures the behavior driven development (or BDD) cycle:

:all_on_start => false                        # Run all suites on start.
                                              # default: true

:keep_failed => false                         # Keep failed suites and add them to the next run again.
                                              # default: true

:all_after_pass => false                      # Run all suites after a suite has passed again after failing.
                                              # default: true

The :keep_failed failed option remembers failed suites and not failed specs. The reason for this decision is to avoid additional round trip time to request the Jasmine test runner for each single spec, which is mostly more expensive than running a whole suite.

Specdoc options

Guard::Jasmine can generate an RSpec like specdoc in the console after running the specs and you can set when it will be shown in the console:

:specdoc => :always                           # Specdoc output options, either :always, :never or :failure
                                              # default: :failure

With the option set to :always, the specdoc is shown with and without errors in your spec, whereas on with the option set to :never, there is no output at all, instead just a summary of the spec run is shown. The default option :failure shows the specdoc when at least one spec failed.

System notifications options

These options affects what system notifications (growl, libnotify or notifu) are shown after a spec run:

:notifications => false                       # Show success and error notifications.
                                              # default: true

:hide_success => true                         # Disable successful spec run notification.
                                              # default: false

:max_error_notify => 5                        # Maximum error notifications to show.
                                              # default: 3

A note on Rails 2 and 3

This readme describes the use of Guard::Jasmine with Jasminerice through the asset pipeline, but it is not really a requirement for Guard::Jasmine. As long as you serve the Jasmine test runner under a certain url, it's freely up to you how you'll prepare the assets and serve the Jasmine runner.

You can use the Jasmine Gem, configure the test suite in jasmine.yml and start the Jasmine test runner with the supplied Rake task:

$ rake jasmine

Next follows an example on how to configure your Guardfile with the Jasmine gem:

guard 'jasmine', :jasmine_url => 'http://127.0.0.1:8888' do
  watch(%r{public/javascripts/(.+)\.js})                  { |m| "spec/javascripts/#{m[1]}_spec.js" }
  watch(%r{spec/javascripts/(.+)_spec\.js})               { |m| "spec/javascripts/#{m[1]}_spec.js" }
  watch(%r{spec/javascripts/support/jasmine\.yml})        { "spec/javascripts" }
  watch(%r{spec/javascripts/support/jasmine_config\.rb})  { "spec/javascripts" }
end

It is also possible to use CoffeeScript in this setup, by using Guard::CoffeeScript to compile your code and even specs. Just add something like this before Guard::Jasmine:

guard 'coffeescript', :input => 'app/coffeescripts',  :output => 'public/javascripts'
guard 'coffeescript', :input => 'spec/coffeescripts', :output => 'spec/javascripts'

Alternatives

Development

Pull requests are very welcome! Please try to follow these simple "rules", though:

  • Please create a topic branch for every separate change you make.
  • Make sure your patches are well tested.
  • Update the README (if applicable).
  • Please do not change the version number.

For questions please join us on our Google group or on #guard (irc.freenode.net).

The guard-jasmine executable

This Guard comes with a small executable guard-jasmine that can be used to run the Jasmine test runner on PhantomJS and see the JSON result that gets evaluated by Guard::Jasmine. This comes handy when there is an issue with your specs and you want to see the output of the PhantomJS script.

$ guard-jasmine

The only argument that the script takes is the URL to the Jasmine runner, which defaults to http://127.0.0.1:3000/Jasmine. So you can for example just run a subset of the specs by changing the URL:

$ guard-jasmine http://127.0.0.1:3000/Jasmine?spec=YourSpec

Acknowledgment

  • Ariya Hidayat for PhantomJS, a powerful headless WebKit browser.
  • Brad Phelan for Jasminerice, an elegant solution for Jasmine in the Rails 3.1 asset pipeline.
  • Pivotal Labs for their beautiful Jasmine BDD testing framework that makes JavaScript testing fun.
  • Jeremy Ashkenas for CoffeeScript, that little language that compiles into JavaScript and makes me enjoy the front-end.
  • The Guard Team for giving us such a nice piece of software that is so easy to extend, one has to make a plugin for it!
  • All the authors of the numerous Guards available for making the Guard ecosystem so much growing and comprehensive.

License

(The MIT License)

Copyright (c) 2011 Michael Kessler

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.