### Question:
JDK8DeckOfCardsAsSortedSet { public SortedSet<Card> spades() { return null; } JDK8DeckOfCardsAsSortedSet(); Deque<Card> shuffle(Random random); Set<Card> deal(Deque<Card> deque, int count); List<Set<Card>> shuffleAndDeal(Random random, int hands, int cardsPerHand); List<Set<Card>> dealHands(
            Deque<Card> shuffled,
            int hands,
            int cardsPerHand); SortedSet<Card> diamonds(); SortedSet<Card> hearts(); SortedSet<Card> spades(); SortedSet<Card> clubs(); Map<Suit, Long> countsBySuit(); Map<Rank, Long> countsByRank(); SortedSet<Card> getCards(); Map<Suit, SortedSet<Card>> getCardsBySuit();  }### Answer:
@Test public void spades() { Assert.assertEquals(this.jdk1Deck.spades(), this.jdk2Deck.spades()); }