Things to look for with this sortable test:

• It should be a draggable, sortable list.
• It should display the order below the list when you release an item.
• It should still let you sort correctly if you scroll the list down a bit.
• It should not scroll for you as you drag ( that is not part of this test ).
• It should keep the radio selected when it is dropped.
• It should accept dragOptions limiting draggability to the y axis.
• It should detach and reattach
• It should not introduce new instances of sortables on attaching ( as exemplified by duplicates in "order" )