@Test
public void shouldReturnSumOfGoodsPricesPurchased() {
ShoppingBasket basket = new ShoppingBasket();
Good good1 = new Good("rice", 34.90, new Type("food"));
Good good2 = new Good("wheat", 34.90, new Type("food"));
basket.addToIt(good1, 1);
basket.addToIt(good2, 2);
assertEquals(new Receipt(basket).sumOfItemPrices(), 34.90 * 3, 0.01);
}
@Test
public void shouldReturnSumOfTotalTaxAndPriceForGoodsPurchased() {
ShoppingBasket basket = new ShoppingBasket();
Good good1 = new Good("rice", 12.49, new Type("book"));
Good good2 = new Good("wheat", 14.99, new Type("cd"));
Good good3 = new Good("choco", 0.85, new Type("food"));
basket.addToIt(good1, 1);
basket.addToIt(good2, 1);
basket.addToIt(good3, 1);
basket.purchase();
assertEquals(new Receipt(basket).total(), 29.83, 0.1);
}