@Test
public void shouldReturn_0_whenNoNormalPriceSpecified() {
PriceHolder.updatePrices(new HashMap<>(), getDiscountPrices());
HashMap<Item, Integer> items = new HashMap<>();
items.put(A, 1);
assertTrue(PriceCalculator.calculatePriceForItems(items) == 0);
}
@Before
public void setUp() {
PriceHolder.updatePrices(getNormalPrices(), getDiscountPrices());
}