Question

我正在尝试模拟一个对象，该对象使用Mockito返回一个Java Optional对象：

SomeObject someObject = new SomeObject();
Mockito.when(someSpringJpaRepository.findById(Mockito.any(UUID.class))).thenReturn(Optional.of(someObject));

调用someSpringJpaRepository.findById(UUID)时，它将返回Optional.empty。

我希望方法findById()返回someObject。
它为什么返回Optional.empty的任何原因？

这是方法：

public UUID saveOrder(OrderDTO orderDto) {

        Order order = new Order();
        if (orderDto.getId() != null) {
            Optional<Order> result = orderRepository.findById(orderDto.getId());
            if (result != null && result.isPresent()) {
                order = result.get(); // existing record

            } else {
                order.setId(UUID.randomUUID());
            }
        } else {
            // new record
            order.setId(UUID.randomUUID());
        }

        return order.getId();
    }

这是Junit：

@Test
    public void saveOrderTest(){

        @Autowired
        private OrderApiService orderApiService;
        @Mock
        private OrderRepository orderRepository;

        OrderDTO orderDto = new OrderDTO();
        UUID orderID = UUID.randomUUID();
        Order order = new Order();
        order.setId(orderID);

        orderDto.setId(orderID);
        Mockito.when(orderRepository.findById(Mockito.any(UUID.class))).thenReturn(Optional.of(order));
        assertNotNull(orderApiService.saveOrder(orderDto));
    }

Answer 1

您在课堂上的def Email(values, search): x = list() for i in values: if i.endswith("@" + search): x.append(i) return ", ".join(x) # Returning list as a comma separated value emails = ["email@example.com","email1@example.com","email2@example.com","emaila@emailexample.com","emailb@emailexample.com","email33@examplex.com","emailas44@exampley.com","emailoi45@exampley.com","emailgh@exampley.com"] website = 'example.com' data = Email(emails, website) print("Website = " + website) print("Email = " + data)无所作为。您创建了@Mock的单独实例，该实例未注入您的服务类中。要将模拟插入上下文，请使用orderRepository

@MockBean和@Mock here之间的差异

Answer 2

您可以尝试使用间谍方法

Repository spyRepo = Mockito.spy(someSpringJpaRepository);
Mockito.doReturn(Optional.of(someObject)).when(spyRepo).findById(Mockito.any(UUID.class));

模拟对象返回Java 8可选对象与Mockito返回空可选

2 个答案: