Make the tests pass when config.threadsafe! is enabled (#12097).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@10910 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/helpers/application_helper_test.rb

@@ -21,6 +21,7 @@ require File.expand_path('../../../test_helper', __FILE__)
 
 class ApplicationHelperTest < ActionView::TestCase
   include ERB::Util
+  include Rails.application.routes.url_helpers
 
   fixtures :projects, :roles, :enabled_modules, :users,
            :repositories, :changesets,

test/unit/lib/redmine/helpers/gantt_test.rb

@@ -34,6 +34,7 @@ class Redmine::Helpers::GanttHelperTest < ActionView::TestCase
   include ProjectsHelper
   include IssuesHelper
   include ERB::Util
+  include Rails.application.routes.url_helpers
 
   def setup
     setup_with_controller