Better specs for happy_discount
Better test for happy_discount
Remove unnecessary expect
Fix test based on previous update
Revert "Remove unnecessary expect"

This reverts commit fda0b0d5ab6f0b20b3008bcc682e9921fd7f07fe.
Final fix!
finished first test, added init for bar
2nd test finished, bar cannot change name
added empty menu to bar
added a add_menu_item method
changed add_menu_time method to take in item objects, not hash
added happy_discount method
changes to test, happy_discoutn method with setter
add new setter method for constraining happy discount
added discount and get_price method