diff --git a/test/functional/issues_controller_test.rb b/test/functional/issues_controller_test.rb
index f9ee2d76..9dd18801 100644
--- a/test/functional/issues_controller_test.rb
+++ b/test/functional/issues_controller_test.rb
@@ -197,13 +197,17 @@ class IssuesControllerTest < Test::Unit::TestCase
   end
   
   def test_index_sort
-    get :index, :sort_key => 'tracker'
+    get :index, :sort => 'tracker,id:desc'
     assert_response :success
     
-    sort_params = @request.session['issuesindex_sort']
-    assert sort_params.is_a?(Hash)
-    assert_equal 'tracker', sort_params[:key]
-    assert_equal 'ASC', sort_params[:order]
+    sort_params = @request.session['issues_index_sort']
+    assert sort_params.is_a?(String)
+    assert_equal 'tracker,id:desc', sort_params
+    
+    issues = assigns(:issues)
+    assert_not_nil issues
+    assert !issues.empty?
+    assert_equal issues.sort {|a,b| a.tracker == b.tracker ? b.id <=> a.id : a.tracker <=> b.tracker }.collect(&:id), issues.collect(&:id)
   end
 
   def test_gantt
diff --git a/test/unit/helpers/sort_helper_test.rb b/test/unit/helpers/sort_helper_test.rb
index 9132beb2..d2aca110 100644
--- a/test/unit/helpers/sort_helper_test.rb
+++ b/test/unit/helpers/sort_helper_test.rb
@@ -20,6 +20,11 @@ require File.dirname(__FILE__) + '/../../test_helper'
 class SortHelperTest < HelperTestCase
   include SortHelper
   
+  def setup
+    @session = nil
+    @sort_param = nil
+  end
+  
   def test_default_sort_clause_with_array
     sort_init 'attr1', 'desc'
     sort_update(['attr1', 'attr2'])
@@ -34,6 +39,13 @@ class SortHelperTest < HelperTestCase
     assert_equal 'table1.attr1 DESC', sort_clause
   end
   
+  def test_default_sort_clause_with_multiple_columns
+    sort_init 'attr1', 'desc'
+    sort_update({'attr1' => ['table1.attr1', 'table1.attr2'], 'attr2' => 'table2.attr2'})
+
+    assert_equal 'table1.attr1 DESC, table1.attr2 DESC', sort_clause
+  end
+  
   def test_params_sort
     @sort_param = 'attr1,attr2:desc'
     
@@ -45,13 +57,13 @@ class SortHelperTest < HelperTestCase
   end
   
   def test_invalid_params_sort
-    @sort_param = 'attr3'
+    @sort_param = 'invalid_key'
     
     sort_init 'attr1', 'desc'
     sort_update({'attr1' => 'table1.attr1', 'attr2' => 'table2.attr2'})
 
-    assert_nil sort_clause
-    assert_equal '', @session['foo_bar_sort']
+    assert_equal 'table1.attr1 DESC', sort_clause
+    assert_equal 'attr1:desc', @session['foo_bar_sort']
   end
   
   def test_invalid_order_params_sort