Identify ruby code for syntax highlighting

Fixes #617

Author: vanstee

features/controller_specs/anonymous_controller.feature

@@ -21,7 +21,7 @@ Feature: anonymous controller
 
   Scenario: specify error handling in ApplicationController
     Given a file named "spec/controllers/application_controller_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       class ApplicationController < ActionController::Base
@@ -56,7 +56,7 @@ Feature: anonymous controller
 
   Scenario: specify error handling in subclass of ApplicationController
     Given a file named "spec/controllers/application_controller_subclass_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       class ApplicationController < ActionController::Base
@@ -94,7 +94,7 @@ Feature: anonymous controller
 
   Scenario: infer base class from the described class
     Given a file named "spec/controllers/base_class_can_be_inferred_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       RSpec.configure do |c|
@@ -122,7 +122,7 @@ Feature: anonymous controller
 
   Scenario: invoke around filter in base class
     Given a file named "spec/controllers/application_controller_around_filter_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       class ApplicationController < ActionController::Base
@@ -153,7 +153,7 @@ Feature: anonymous controller
 
   Scenario: anonymous controllers only create resource routes
     Given a file named "spec/controllers/application_controller_spec.rb" with:
-    """
+    """ruby
     require "spec_helper"
 
     describe ApplicationController do

features/controller_specs/bypass_rescue.feature

@@ -9,7 +9,7 @@ Feature: bypass rescue
 
   Background:
     Given a file named "spec/controllers/gadgets_controller_spec_context.rb" with:
-      """
+      """ruby
       class AccessDenied < StandardError; end
 
       class ApplicationController < ActionController::Base
@@ -25,7 +25,7 @@ Feature: bypass rescue
 
   Scenario: standard exception handling using `rescue_from`
     Given a file named "spec/controllers/gadgets_controller_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       require 'controllers/gadgets_controller_spec_context'
@@ -50,7 +50,7 @@ Feature: bypass rescue
 
   Scenario: bypass `rescue_from` handling with `bypass_rescue`
     Given a file named "spec/controllers/gadgets_controller_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       require 'controllers/gadgets_controller_spec_context'

features/controller_specs/controller_spec.feature

@@ -2,7 +2,7 @@ Feature: controller spec
 
   Scenario: simple passing example
     Given a file named "spec/controllers/widgets_controller_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe WidgetsController do
@@ -19,7 +19,7 @@ Feature: controller spec
 
   Scenario: controller is exposed to global before hooks
     Given a file named "spec/controllers/widgets_controller_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       RSpec.configure {|c| c.before { expect(controller).not_to be_nil }}

features/controller_specs/isolation_from_views.feature

@@ -9,7 +9,7 @@ Feature: views are stubbed by default
 
   Scenario: expect template that is rendered by controller action (passes)
     Given a file named "spec/controllers/widgets_controller_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe WidgetsController do
@@ -32,7 +32,7 @@ Feature: views are stubbed by default
 
   Scenario: expect template that is not rendered by controller action (fails)
     Given a file named "spec/controllers/widgets_controller_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe WidgetsController do
@@ -49,7 +49,7 @@ Feature: views are stubbed by default
 
   Scenario: expect empty templates to render when view path is changed at runtime (passes)
     Given a file named "spec/controllers/things_controller_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe ThingsController do
@@ -69,7 +69,7 @@ Feature: views are stubbed by default
 
   Scenario: expect template to render the real template with render_views when view path is changed at runtime
     Given a file named "spec/controllers/things_controller_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe ThingsController do

features/controller_specs/render_views.feature

@@ -5,7 +5,7 @@ Feature: render_views
 
   Scenario: render_views directly in a single group
     Given a file named "spec/controllers/widgets_controller_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe WidgetsController do
@@ -24,7 +24,7 @@ Feature: render_views
 
   Scenario: render_views on and off in nested groups
     Given a file named "spec/controllers/widgets_controller_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe WidgetsController do
@@ -73,7 +73,7 @@ Feature: render_views
       """
     When I run `rspec spec --order default --format documentation`
     Then the output should contain:
-      """
+      """ruby
       WidgetsController
         with render_views
           GET index
@@ -91,13 +91,13 @@ Feature: render_views
 
   Scenario: render_views globally
     Given a file named "spec/support/render_views.rb" with:
-      """
+      """ruby
       RSpec.configure do |config|
         config.render_views
       end
       """
     And a file named "spec/controllers/widgets_controller_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe WidgetsController do

features/helper_specs/helper_spec.feature

@@ -15,7 +15,7 @@ Feature: helper spec
 
   Scenario: helper method that returns a value
     Given a file named "spec/helpers/application_helper_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe ApplicationHelper do
@@ -27,7 +27,7 @@ Feature: helper spec
       end
       """
     And a file named "app/helpers/application_helper.rb" with:
-      """
+      """ruby
       module ApplicationHelper
         def page_title
           "RSpec is your friend"
@@ -39,7 +39,7 @@ Feature: helper spec
 
   Scenario: helper method that accesses an instance variable
     Given a file named "spec/helpers/application_helper_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe ApplicationHelper do
@@ -52,7 +52,7 @@ Feature: helper spec
       end
       """
     And a file named "app/helpers/application_helper.rb" with:
-      """
+      """ruby
       module ApplicationHelper
         def page_title
           @title || nil
@@ -64,7 +64,7 @@ Feature: helper spec
 
   Scenario: application helper is included in helper object
     Given a file named "spec/helpers/widgets_helper_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe WidgetsHelper do
@@ -77,15 +77,15 @@ Feature: helper spec
       end
       """
     And a file named "app/helpers/application_helper.rb" with:
-      """
+      """ruby
       module ApplicationHelper
         def app_name
           "The App"
         end
       end
       """
     And a file named "app/helpers/widgets_helper.rb" with:
-      """
+      """ruby
       module WidgetsHelper
         def widget_title
           "#{app_name}: #{@title}"

features/mailer_specs/url_helpers.feature

@@ -2,11 +2,11 @@ Feature: URL helpers in mailer examples
 
   Scenario: using URL helpers with default options
     Given a file named "config/initializers/mailer_defaults.rb" with:
-      """
+      """ruby
       Rails.configuration.action_mailer.default_url_options = { :host => 'example.com' }
       """
     And a file named "spec/mailers/notifications_spec.rb" with:
-      """
+      """ruby
       require 'spec_helper'
 
       describe Notifications do
@@ -20,11 +20,11 @@ Feature: URL helpers in mailer examples
 
   Scenario: using URL helpers without default options
     Given a file named "config/initializers/mailer_defaults.rb" with:
-      """
+      """ruby
       # no default options
       """
     And a file named "spec/mailers/notifications_spec.rb" with:
-      """
+      """ruby
       require 'spec_helper'
 
       describe Notifications do

features/matchers/new_record_matcher.feature

@@ -8,7 +8,7 @@ Feature: be_a_new matcher
 
   Scenario: example spec with four be_a_new possibilities 
     Given a file named "spec/models/widget_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe Widget do

features/matchers/redirect_to_matcher.feature

@@ -9,7 +9,7 @@ Feature: redirect_to matcher
 
   Scenario: redirect_to with four possible options
     Given a file named "spec/controllers/widgets_controller_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe WidgetsController do

features/matchers/relation_match_array.feature

@@ -6,7 +6,7 @@ Feature: ActiveRecord::Relation match array
 
   Scenario: example spec with relation match_array matcher
     Given a file named "spec/models/widget_spec.rb" with:
-      """
+      """ruby
       require "spec_helper"
 
       describe Widget do