Fix the mock_file test helper.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4010 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/exemplars/attachment_exemplar.rb

@@ -12,6 +12,6 @@ class Attachment < ActiveRecord::Base
   end
 
   def self.generate_file
-    @file = mock_file
+    @file = ActiveSupport::TestCase.mock_file
   end
 end

test/test_helper.rb

@@ -63,7 +63,7 @@ class ActiveSupport::TestCase
   end
 
   # Mock out a file
-  def mock_file
+  def self.mock_file
     file = 'a_file.png'
     file.stubs(:size).returns(32)
     file.stubs(:original_filename).returns('a_file.png')
@@ -72,6 +72,10 @@ class ActiveSupport::TestCase
     file
   end
 
+  def mock_file
+    self.class.mock_file
+  end
+
   # Use a temporary directory for attachment related tests
   def set_tmp_attachments_directory
     Dir.mkdir "#{RAILS_ROOT}/tmp/test" unless File.directory?("#{RAILS_ROOT}/tmp/test")