Question

当我运行JUnit测试，ShuffleTest时，我收到响应，“通缉但未调用：shuffler.shuffle（）;” 我已经多次看过这个问题了，但就我所知，我正在做那些答案所说的。我将我的界面实例化为模拟，并将其注入我的Deck类。为什么不被调用？

public enum Suit {
    SPADE("BLACK"),
    CLUB("BLACK"),
    HEART("RED"),
    DIAMOND("RED");

    private final String color;
    Suit(String color) {
        this.color = color;
    }
}

public enum Rank {
    ACE, TWO, THREE, FOUR, FIVE, SIX, 
    SEVEN, EIGHT, NINE, TEN, JACK, QUEEN, KING;

}


public class Card {
    private Suit suit;
    private Rank rank;

    public Card(Rank rank, Suit suit) {
        this.rank = rank;
        this.suit = suit;
    }

    public Suit getSuit() {
        return suit;
    }

    public Rank getRank() {
        return rank;
    }

    public String toString() {
        return suit + " of " + rank + ";"; 
    }
}

public class Deck {

    private List<Card> cards;
    private Shuffler shuffler;

    public Deck(Shuffler shuffler) {
        this.cards = new LinkedList<Card>();
        this.shuffler = shuffler;
        shuffler.shuffle(this.cards);
        System.out.println("class " + shuffler.getClass());
    }

    public void shuffle() {
        shuffler.shuffle(this.cards);
    }
    public void addCard(Card card) {
        cards.add(0, card);
    }

}

public interface Shuffler {
    public <T> void shuffle(List<T> items);
}
public class TestDeck {
    private Deck deck;
    private Shuffler mockShuffler;

    public static Deck createFullDeck(Shuffler shuffler) {
        shuffler = mock(Shuffler.class);
        Deck deck = new Deck(shuffler);
        for(Suit s : Suit.values()) {
            for(Rank r : Rank.values()) {
                deck.addCard(new Card(r, s));
            }
        }
        return deck;
    }

    @Before
    public void before() {
        mockShuffler = mock(Shuffler.class);        
        deck = createFullDeck(mockShuffler);
    }



    @Test
    public void ShuffleTest() { 
        doAnswer(new Answer<Void>() {
            public Void answer(InvocationOnMock invocation) throws Throwable {
                System.out.println("Everyday I'm Shuffling");
                return null;
            }

        }).when(mockShuffler).shuffle(Matchers.anyListOf(Card.class));

        deck.shuffle();
        verify(mockShuffler, times(1)).shuffle(Matchers.anyListOf(Card.class));
    }
}

Answer 1

您正在创建两个单独的shuffler对象。尝试从shuffler = mock(Shuffler.class);方法中删除createFullDeck，因为shuffler在传入时已经是模拟。

为什么我的模拟方法没有被调用？

1 个答案: