init of item should set original price to passed in value
passed
init should set original price duration = 0
passed
init of item should set sale price = 0.0
passed
init should set sale duration = 0
passed
isPromo should return true when sale price is less than original price
isPromo should return true when sale price is less than original price
passed
isPromo should return false when sale price = 0.0
passed
  test("should set proper values when 'end promotion'") {
passed
  test("should reduce original price") {
passed
  test("should reduce original price by a different percentage") {
passed
  test("should not reduce original price when original price has not
been stable for 30 days") {