+is(new_item->assign_attributes(dummy_as_man_days_string => '5,25', dummy_as_man_days_unit => 'h' )->dummy, 5.25, 'assign_attributes hash string 5,25h');
+is(new_item->assign_attributes(dummy_as_man_days_unit => 'h', dummy_as_man_days_string => '5,25')->dummy, 5.25, 'assign_attributes hash string h5,25');
+
+is(new_item->assign_attributes(dummy_as_man_days_string => '5,25', dummy_as_man_days_unit => 'man_day')->dummy, 42, 'assign_attributes hash string 5,25man_day');
+is(new_item->assign_attributes(dummy_as_man_days_unit => 'man_day', dummy_as_man_days_string => '5,25' )->dummy, 42, 'assign_attributes hash string man_day5,25');
+
+is(new_item->assign_attributes('dummy_as_man_days_string', '5,25', 'dummy_as_man_days_unit', 'h' )->dummy, 5.25, 'assign_attributes array 5,25h');
+is(new_item->assign_attributes('dummy_as_man_days_unit', 'h', 'dummy_as_man_days_string', '5,25')->dummy, 5.25, 'assign_attributes array h5,25');
+
+is(new_item->assign_attributes('dummy_as_man_days_string', '5,25', 'dummy_as_man_days_unit', 'man_day')->dummy, 42, 'assign_attributes array 5,25man_day');
+is(new_item->assign_attributes('dummy_as_man_days_unit', 'man_day', 'dummy_as_man_days_string', '5,25' )->dummy, 42, 'assign_attributes array man_day5,25');
+