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The Jasmine Gem Build Status

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The Jasmine Ruby Gem is a package of helper code for developing Jasmine projects for Ruby-based web projects (Rails, Sinatra, etc.) or for JavaScript projects where Ruby is a welcome partner. It serves up a project's Jasmine suite in a browser so you can focus on your code instead of manually editing script tags in the Jasmine runner HTML file.


This gem contains:

  • A small server that builds and executes a Jasmine suite for a project
  • A script that sets up a project to use the Jasmine gem's server
  • Generators for Ruby on Rails projects (Rails 4 and 5)

You can get all of this by:

gem install jasmine
or by adding Jasmine to your
group :development, :test do
  gem 'jasmine'

Init A Project

To initialize a rails project for Jasmine

rails generate jasmine:install

rails generate jasmine:examples

For any other project (Sinatra, Merb, or something we don't yet know about) use

jasmine init

jasmine examples


Start the Jasmine server:

rake jasmine

Point your browser to

. The suite will run every time this page is re-loaded.

For Continuous Integration environments, add this task to the project build steps:

rake jasmine:ci

This uses PhantomJS to load and run the Jasmine suite.

Please note that PhantomJS will be auto-installed by the phantomjs-gem at the first

rake jasmine:ci
run. If you have a matching PhantomJS version somewhere on your path, it won't install. You can disable automatic installation altogether (and use the PhantomJS on your path) via the config helper in your jasmine_helper.rb:
Jasmine.configure do |config|
  config.prevent_phantom_js_auto_install = true



to enumerate the source files, stylesheets, and spec files you would like the Jasmine runner to include. You may use dir glob strings.

Alternatively, you may specify the path to your

by setting an environment variable:

rake jasmine:ci JASMINE_CONFIG_PATH=relative/path/to/your/jasmine.yml

In addition, the

key in your jasmine.yml specifies the path to a ruby file that can do programmatic configuration. After running
jasmine init
rails generate jasmine:install
it will point to
which you can modify to fit your needs.

Running Jasmine on a different port

The ports that

rake jasmine
rake jasmine:server
) and
rake jasmine:ci
run on are configured independently, so they can both run at the same time.

To change the port that

rake jasmine

In your jasmine_helper.rb:

Jasmine.configure do |config|
  config.server_port = 5555

By default

rake jasmine:ci
will attempt to find a random open port, to set the port that
rake jasmine:ci

In your jasmine_helper.rb:

Jasmine.configure do |config|
  config.ci_port = 1234

By default

rake jasmine:ci
will print results in color, to change this configuration:

In your jasmine_helper.rb:

Jasmine.configure do |config|
  config.color = false

Using headless Chrome

  • Add
    as a dependency
  • In your jasminehelper.rb: ```ruby Jasmine.configure do |config| config.runnerbrowser = :chromeheadless end ```

Additional configuration options

  • config.chrome_binary
    - to customize which binary to execute
  • config.chrome_cli_options
    - if you know what you're doing you can customize the CLI
  • config.chrome_startup_timeout
    - change the amount of time to wait for chrome to start

On Travis-CI

Add this to your

  chrome: stable


Documentation: Jasmine Mailing list: [email protected] Twitter: @jasminebdd

Please file issues here at Github

Copyright (c) 2008-2017 Pivotal Labs. This software is licensed under the MIT License.


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