Describe: Pizza()
Test: Should construct a pizza object, using the given arguments as values for size and toppings, and calculate resulting price in dollars
Expect(new Pizza("large", ["Chicken", "Mushrooms", "Onions"]).toEquals(Pizza {size: "large", toppings: ["Chicken", "Mushrooms", "Onions"], price: 18 }))

Describe: Pizza.prototype.calculatePrice()
Test: Should calculate and return price of pizza using size and toppings properties, according to this formula:

Base prices:
Small: $10.00
Medium: $12.00
Large: $14.00

Prices per topping:
$1 toppings and $2 toppings regardless of size