add functional attachment test of mercurial export file (#11868)

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@10429 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/functional/attachments_controller_test.rb

@@ -110,6 +110,21 @@ class AttachmentsControllerTest < ActionController::TestCase
     assert_equal "sbs", user.pref[:diff_type]
   end
 
+  def test_diff_show_filename_in_mercurial_export
+    set_tmp_attachments_directory
+    a = Attachment.new(:container => Issue.find(1),
+                       :file => uploaded_test_file("hg-export.diff", "text/plain"),
+                       :author => User.find(1))
+    assert a.save
+    assert_equal 'hg-export.diff', a.filename
+
+    get :show, :id => a.id, :type => 'inline'
+    assert_response :success
+    assert_template 'diff'
+    assert_equal 'text/html', @response.content_type
+    assert_select 'th.filename', :text => 'test1.txt'
+  end
+
   def test_show_text_file
     get :show, :id => 4
     assert_response :success