diff --git a/test/unit/lib/redmine/unified_diff_test.rb b/test/unit/lib/redmine/unified_diff_test.rb
index 13653e3a9..8d3e70497 100644
--- a/test/unit/lib/redmine/unified_diff_test.rb
+++ b/test/unit/lib/redmine/unified_diff_test.rb
@@ -5,12 +5,12 @@
 # modify it under the terms of the GNU General Public License
 # as published by the Free Software Foundation; either version 2
 # of the License, or (at your option) any later version.
-# 
+#
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
-# 
+#
 # You should have received a copy of the GNU General Public License
 # along with this program; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
@@ -18,7 +18,7 @@
 require File.expand_path('../../../../test_helper', __FILE__)
 
 class Redmine::UnifiedDiffTest < ActiveSupport::TestCase
-  
+
   def setup
   end
 
@@ -28,58 +28,58 @@ class Redmine::UnifiedDiffTest < ActiveSupport::TestCase
     assert_equal 4, diff.size
     assert diff.detect {|file| file.file_name =~ %r{^config/settings.yml}}
   end
-  
+
   def test_truncate_diff
     diff = Redmine::UnifiedDiff.new(read_diff_fixture('subversion.diff'), :max_lines => 20)
     assert_equal 2, diff.size
   end
-  
+
   def test_inline_partials
     diff = Redmine::UnifiedDiff.new(read_diff_fixture('partials.diff'))
     assert_equal 1, diff.size
     diff = diff.first
     assert_equal 43, diff.size
-    
+
     assert_equal [51, -1], diff[0].offsets
     assert_equal [51, -1], diff[1].offsets
     assert_equal 'Lorem ipsum dolor sit amet, consectetur adipiscing <span>elit</span>', diff[0].html_line
     assert_equal 'Lorem ipsum dolor sit amet, consectetur adipiscing <span>xx</span>', diff[1].html_line
-    
+
     assert_nil diff[2].offsets
     assert_equal 'Praesent et sagittis dui. Vivamus ac diam diam', diff[2].html_line
-    
+
     assert_equal [0, -14], diff[3].offsets
     assert_equal [0, -14], diff[4].offsets
     assert_equal '<span>Ut sed</span> auctor justo', diff[3].html_line
     assert_equal '<span>xxx</span> auctor justo', diff[4].html_line
-    
+
     assert_equal [13, -19], diff[6].offsets
     assert_equal [13, -19], diff[7].offsets
-    
+
     assert_equal [24, -8], diff[9].offsets
     assert_equal [24, -8], diff[10].offsets
-    
+
     assert_equal [37, -1], diff[12].offsets
     assert_equal [37, -1], diff[13].offsets
-    
+
     assert_equal [0, -38], diff[15].offsets
     assert_equal [0, -38], diff[16].offsets
   end
-  
+
   def test_side_by_side_partials
     diff = Redmine::UnifiedDiff.new(read_diff_fixture('partials.diff'), :type => 'sbs')
     assert_equal 1, diff.size
     diff = diff.first
     assert_equal 32, diff.size
-    
+
     assert_equal [51, -1], diff[0].offsets
     assert_equal 'Lorem ipsum dolor sit amet, consectetur adipiscing <span>elit</span>', diff[0].html_line_left
     assert_equal 'Lorem ipsum dolor sit amet, consectetur adipiscing <span>xx</span>', diff[0].html_line_right
-    
+
     assert_nil diff[1].offsets
     assert_equal 'Praesent et sagittis dui. Vivamus ac diam diam', diff[1].html_line_left
     assert_equal 'Praesent et sagittis dui. Vivamus ac diam diam', diff[1].html_line_right
-    
+
     assert_equal [0, -14], diff[2].offsets
     assert_equal '<span>Ut sed</span> auctor justo', diff[2].html_line_left
     assert_equal '<span>xxx</span> auctor justo', diff[2].html_line_right
@@ -88,9 +88,9 @@ class Redmine::UnifiedDiffTest < ActiveSupport::TestCase
     assert_equal [24, -8], diff[6].offsets
     assert_equal [37, -1], diff[8].offsets
     assert_equal [0, -38], diff[10].offsets
-    
+
   end
-  
+
   def test_line_starting_with_dashes
     diff = Redmine::UnifiedDiff.new(<<-DIFF
 --- old.txt Wed Nov 11 14:24:58 2009