java - Mockito.when 在测试方法体内不起作用

Question

我正在尝试测试我制作的发票类。到目前为止有效，但我在 falsePayCallKeepsPaidAtFalse 方法内部遇到问题。 Mockito.when方法对实际返回值没有任何影响。到目前为止，Mockitor.when 只在 setUp() 方法内部工作。

到目前为止我已经尝试过:从 setUp() 方法中删除 Mockitor.when 并在每个测试方法中调用它。在 setUp() 方法中将返回值设置为 false (这会产生影响)。检查问题是否出在实际的 Invoice 类中，事实并非如此。

public class InvoiceTest {
    @Mock
    private OrderManager orderManager;
    private InvoiceManager invoiceManager;

    private Invoice invoice;
    private ArrayList<Integer> orderIds;

    @BeforeEach
    public void setUp() {
        orderManager = mock(OrderManager.class);
        invoiceManager = mock(InvoiceManager.class);

        orderIds = new ArrayList<>();
        orderIds.add(2);
        orderIds.add(5);
        invoice = new Invoice(
                null,
                null,
                null,
                null,
                "VAT",
                16,
                false,
                2,
                 orderIds,
                "test",
                LocalDate.now()
        );

        HashMap<Integer, Order> returnOrders = new HashMap();
        returnOrders.put(2, mock(Order.class));
        returnOrders.put(5, mock(Order.class));

        when(orderManager.fetchNOrders(orderIds)).thenReturn(returnOrders);
        when(invoiceManager.setInvoicePaid(invoice, orderIds)).thenReturn(true);

        invoice.pay(invoiceManager, orderManager);
    }
    /**
     * Pay.
     */
    @Test
    public void payCallsSetInvoicePaid() {
        verify(invoiceManager, times(1)).setInvoicePaid(invoice, invoice.getOrders());
    }

    @Test
    public void correctPayCallSetsPaidToTrue() {
        invoiceManager.setInvoicePaid(invoice, orderIds);
        assertThat(invoice.isPaid()).isTrue();
    }

    @Test
    public void falsePayCallKeepsPaidAtFalse() {
        when(invoiceManager.setInvoicePaid(invoice, orderIds)).thenReturn(false);

        invoiceManager.setInvoicePaid(invoice, orderIds);
        assertThat(invoice.isPaid()).isFalse();
    }
    @Test
    public void payAsksForOrderFetch() {
        verify(orderManager, times(1)).fetchNOrders(orderIds);
    }
}

Answer 1

我发现了错误。我在 falsePayCallKeepsPaidAtFalse() 中调用了错误的方法。正确的是:invoice.pay(invoiceManger, orderManager);