[#4180] Show and hide the total field based on the Deliverable Type

Hooks up holygrail to do basic headless JavaScript testing.

test/integration/deliverables_new_test.rb

@@ -57,6 +57,8 @@ class DeliverablesNewTest < ActionController::IntegrationTest
     fill_in "End Date", :with => '2010-12-31'
     fill_in "Notes", :with => 'Some notes on the deliverable'
     fill_in "Total", :with => '1,000.00'
+    # TODO: webrat can't trigger DOM events so it can't appear
+    # assert js("jQuery('#deliverable_total').is(':visible')"), "Total is hidden when it should be visible"
 
     click_button "Save"
 
@@ -89,6 +91,9 @@ class DeliverablesNewTest < ActionController::IntegrationTest
     fill_in "End Date", :with => '2010-12-31'
     fill_in "Notes", :with => 'Some notes on the deliverable'
 
+    assert js("jQuery('#deliverable_total').is(':hidden')"),
+           "Total is visible when it should be hidden"
+
     click_button "Save"
 
     assert_response :success

test/test_helper.rb

@@ -10,6 +10,26 @@ Webrat.configure do |config|
   config.mode = :rails
 end
 
+require 'holygrail'
+
+module HolyGrail
+  module Extensions
+    # Need to rewrite the javascript for the engine too
+    def rewrite_script_paths(body)
+      body.
+        gsub(%r%src=("|')/?plugin_assets/redmine_contracts/javascripts/(.*)("|')%) { %|src=#{$1}%s#{$1}"| % Rails.root.join("vendor/plugins/redmine_contracts/assets/javascripts/#{$2}")  }.
+        gsub(%r%src=("|')/?javascripts/(.*)("|')%) { %|src=#{$1}%s#{$1}"| % Rails.root.join("public/javascripts/#{$2}")  }
+    end
+  end
+end
+
+class ActionController::TestCase
+  include HolyGrail::Extensions
+end
+class ActionController::IntegrationTest
+  include HolyGrail::Extensions
+end
+
 def User.add_to_project(user, project, role)
   Member.generate!(:principal => user, :project => project, :roles => [role])
 end