karma.conf.js

module.exports = function(config) {
  config.set({

    // base path
    basePath: './',

    // frameworks to use
    frameworks: ['jasmine'],

    // list of files / patterns to load in the browser
    files: [
      "/home/vagrant/.rvm/gems/ruby-2.2.2/gems/jquery-rails-4.0.4/vendor/assets/javascripts/jquery.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/jquery-rails-4.0.4/vendor/assets/javascripts/jquery_ujs.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/d3-rails-3.5.6/app/assets/javascripts/d3.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.abide.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.accordion.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.alert.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.clearing.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.dropdown.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.equalizer.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.interchange.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.joyride.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.magellan.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.offcanvas.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.orbit.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.reveal.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.slider.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.tab.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.tooltip.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation/foundation.topbar.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/foundation-rails-5.5.2.1/vendor/assets/javascripts/foundation.js",
"/vagrant/vendor/assets/javascripts/foundation-datepicker.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/lodash-rails-3.10.1/vendor/assets/javascripts/lodash.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/momentjs-rails-2.10.3/vendor/assets/javascripts/moment.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/bundler/gems/actioncable-6be2604aa719/lib/assets/javascripts/cable.coffee.erb",
"/home/vagrant/.rvm/gems/ruby-2.2.2/bundler/gems/actioncable-6be2604aa719/lib/assets/javascripts/cable/connection.coffee",
"/home/vagrant/.rvm/gems/ruby-2.2.2/bundler/gems/actioncable-6be2604aa719/lib/assets/javascripts/cable/connection_monitor.coffee",
"/home/vagrant/.rvm/gems/ruby-2.2.2/bundler/gems/actioncable-6be2604aa719/lib/assets/javascripts/cable/subscriptions.coffee",
"/home/vagrant/.rvm/gems/ruby-2.2.2/bundler/gems/actioncable-6be2604aa719/lib/assets/javascripts/cable/subscription.coffee",
"/home/vagrant/.rvm/gems/ruby-2.2.2/bundler/gems/actioncable-6be2604aa719/lib/assets/javascripts/cable/consumer.coffee",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/jquery-datatables-rails-3.3.0/app/assets/javascripts/dataTables/jquery.dataTables.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/angularjs-rails-1.4.4/vendor/assets/javascripts/angular.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/angularjs-rails-1.4.4/vendor/assets/javascripts/angular-resource.js",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/angularjs-rails-1.4.4/vendor/assets/javascripts/angular-animate.js",
"/vagrant/vendor/assets/javascripts/angular-foundation.min.js",
"/vagrant/app/assets/javascripts/app/longford_admin.js.coffee",
"/vagrant/app/assets/javascripts/accounts.coffee",
"/vagrant/app/assets/javascripts/app/controllers/audits_controller.coffee.erb",
"/vagrant/app/assets/javascripts/app/controllers/book_controller.coffee.erb",
"/vagrant/app/assets/javascripts/app/controllers/confirm_order_controller.coffee",
"/vagrant/app/assets/javascripts/app/controllers/confirm_settlement_controller.coffee",
"/vagrant/app/assets/javascripts/app/controllers/executions_controller.coffee.erb",
"/vagrant/app/assets/javascripts/app/controllers/firm_contact_controller.js.coffee",
"/vagrant/app/assets/javascripts/app/controllers/firm_controller.js.coffee",
"/vagrant/app/assets/javascripts/app/controllers/firm_org_chart_controller.coffee",
"/vagrant/app/assets/javascripts/app/controllers/instrument_form_controller.coffee",
"/vagrant/app/assets/javascripts/app/controllers/instruments_controller.coffee.erb",
"/vagrant/app/assets/javascripts/app/controllers/message_board_controller.coffee.erb",
"/vagrant/app/assets/javascripts/app/controllers/new_order_controller.js.coffee",
"/vagrant/app/assets/javascripts/app/controllers/order_history_controller.js.coffee",
"/vagrant/app/assets/javascripts/app/controllers/trader_controller.coffee.erb",
"/vagrant/app/assets/javascripts/app/controllers/trader_orders_controller.coffee.erb",
"/vagrant/app/assets/javascripts/app/directives/ng_confirm_click.js.coffee",
"/vagrant/app/assets/javascripts/app/directives/ng_enter.js.coffee",
"/vagrant/app/assets/javascripts/app/filters/filterStateOptions.js.coffee",
"/vagrant/app/assets/javascripts/app/filters/formatLongfordId.js.coffee",
"/vagrant/app/assets/javascripts/app/filters/formatTimestamp.js.coffee",
"/vagrant/app/assets/javascripts/app/services/account.coffee",
"/vagrant/app/assets/javascripts/app/services/bbo_ticker.coffee",
"/vagrant/app/assets/javascripts/app/services/executing_firm.coffee",
"/vagrant/app/assets/javascripts/app/services/execution.coffee",
"/vagrant/app/assets/javascripts/app/services/instrument.coffee",
"/vagrant/app/assets/javascripts/app/services/order.js.coffee",
"/vagrant/app/assets/javascripts/app/services/trader.js.coffee",
"/vagrant/app/assets/javascripts/app/services/user.js.coffee",
"/vagrant/app/assets/javascripts/app/templates/response.jst",
"/vagrant/app/assets/javascripts/contacts.coffee",
"/vagrant/app/assets/javascripts/executions.coffee",
"/vagrant/app/assets/javascripts/fills.coffee",
"/vagrant/app/assets/javascripts/firms.coffee",
"/vagrant/app/assets/javascripts/instrument_root.coffee",
"/vagrant/app/assets/javascripts/instruments.coffee",
"/vagrant/app/assets/javascripts/orders.coffee",
"/vagrant/app/assets/javascripts/traders.coffee",
"/vagrant/app/assets/javascripts/user.coffee",
"/vagrant/app/assets/javascripts/application.coffee",
"/home/vagrant/.rvm/gems/ruby-2.2.2/gems/angularjs-rails-1.4.4/vendor/assets/javascripts/angular-mocks.js",
"/vagrant/vendor/test/assets/javascripts/jasmine-jquery.js",
"/vagrant/spec/javascripts/app/controllers/trader_orders_controller_spec.coffee",
"/vagrant/spec/javascripts/spec_helper.coffee",
      {pattern: 'spec/javascripts/fixtures/*.json', watched: true, served: true, included: false}
    ],

    // list of files to exclude
    exclude: [],

    // test results reporter to use
    // possible values: 'dots', 'progress', 'junit', 'growl', 'coverage'
    reporters: ['progress', 'junit'],

    // web server port
    port: 9876,

    // enable / disable colors in the output (reporters and logs)
    colors: true,

    // level of logging
    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
    logLevel: config.LOG_INFO,

    // enable / disable watching file and executing tests whenever any file changes
    autoWatch: true,

    // Start these browsers, currently available:
    // - Chrome
    // - ChromeCanary
    // - Firefox
    // - Opera (has to be installed with `npm install karma-opera-launcher`)
    // - Safari (only Mac; has to be installed with `npm install karma-safari-launcher`)
    // - PhantomJS
    // - IE (only Windows; has to be installed with `npm install karma-ie-launcher`)
    browsers: ['PhantomJS'],

    // If browser does not capture in given timeout [ms], kill it
    captureTimeout: 60000,

    // Continuous Integration mode
    // if true, it capture browsers, run tests and exit
    singleRun: false,

    // Preprocessors
    preprocessors: {
      '/home/vagrant/.rvm/gems/**/*.coffee.erb': ['coffee'],
      '/home/vagrant/.rvm/gems/**/*.coffee': ['coffee'],
      '/home/jenkins/.rvm/gems/**/*.coffee.erb': ['coffee'],
      '/home/jenkins/.rvm/gems/**/*.coffee': ['coffee'],
      '**/*.coffee.erb': ['coffee'],
      '**/*.coffee': ['coffee'],
      '/**/*.slim': ['slim', 'ng-html2js']
    },

    ngHtml2JsPreprocessor: {
      stripPrefix: 'app/assets/templates/',
      stripSufix: '.slim'
    },

    junitReporter: {
      outputDir: '../tmp/', // results will be saved as $outputDir/$browserName.xml
      outputFile: undefined, // if included, results will be saved as $outputDir/$browserName/$outputFile
      suite: '', // suite will become the package name attribute in xml testsuite element
      useBrowserName: true // add browser name to report and classes names
    }
  });
};

karma.rake

namespace :karma do
  task start: :environment do
    with_tmp_config :start
  end

  task run: :environment do
    exit with_tmp_config :start, "--single-run"
  end

  private

  def with_tmp_config(command, args = nil)
    File.open(Rails.root.join('karma.conf.js'), 'w') do |f|
      f.write unit_js(application_files)
      f.flush

      system "./node_modules/karma/bin/karma #{command} #{args}"
    end
  end

  def application_files
    app_files  = Rails.application.assets.find_asset("application.coffee").to_a.map {|e| e.pathname.to_s }
    spec_files = Rails.application.assets.find_asset("spec_helper.coffee").to_a.map {|e| e.pathname.to_s }
    app_files + spec_files
  end

  def unit_js(files)
    contents = nil
    File.open('spec/javascripts/karma/config/unit.js', 'r') do |file|
      contents = file.read
      contents.gsub!("APPLICATION_SPEC", "\"#{files.join("\",\n\"")}\"")
    end
    contents
  end
end

package.json

{
  "name": "my-project",
  "private": true,
  "dependencies": {
    "karma": ">= 0.12.16",
    "karma-jasmine": ">= 0.2.2",
    "karma-coffee-preprocessor": ">= 0.3.0",
    "karma-slim-preprocessor": ">= 0.0.1",
    "karma-phantomjs-launcher": ">= 0.1.4",
    "karma-ng-html2js-preprocessor": "git://github.com/monterail/karma-ng-html2js-preprocessor#feature/strip-sufix",
    "karma-junit-reporter": "*"
  },
  "devDependencies": {
    "karma-jasmine": "^0.3.6",
    "karma-phantomjs-launcher": "^0.2.1",
    "phantomjs": "^1.9.18"
  }
}