Fixed: error on gantt when no issue have a due date (#6350).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4280 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/functional/gantts_controller_test.rb

@@ -21,7 +21,7 @@ class GanttsControllerTest < ActionController::TestCase
       assert_select "div a.issue", /##{i.id}/
     end
     
-    should_eventually "work without issue due dates" do
+    should "work without issue due dates" do
       Issue.update_all("due_date = NULL")
       
       get :show, :project_id => 1
@@ -29,6 +29,16 @@ class GanttsControllerTest < ActionController::TestCase
       assert_template 'show.html.erb'
       assert_not_nil assigns(:gantt)
     end
+    
+    should "work without issue and version due dates" do
+      Issue.update_all("due_date = NULL")
+      Version.update_all("effective_date = NULL")
+      
+      get :show, :project_id => 1
+      assert_response :success
+      assert_template 'show.html.erb'
+      assert_not_nil assigns(:gantt)
+    end
 
     should "work cross project" do
       get :show