java spring boot，如何编写测试来检查发送请求答案

【问题标题】：java spring boot, how to write a test to check send requestjava spring boot，如何编写测试来检查发送请求
【发布时间】：2021-11-15 00:12:33
【问题描述】：

谁能告诉我你怎么写一个测试。我现在必须使用RestTemplate 测试从一台服务器向另一台服务器发送请求。

class ServiceTest {

@Mock
private RestTemplate restTemplate = new RestTemplate();

@InjectMocks
private RConsumerService refundConsumerService = new RConsumerService(new RestTemplateBuilder());

@Test
public void sendRequestToBillingService(){
    ChargeResponse chargeResponse = new ChargeResponse();
    chargeResponse.setInstanceKey("testInstanceKey");

    KafkaMessage kafkaMessage = new KafkaMessage();
    kafkaMessage.setApplication_id(1L);
    kafkaMessage.setCompany_id(1111);
    TransactionRequestContext reqContext = refundConsumerService.createTxnRequestContext(kafkaMessage);

    Mockito.when(restTemplate.postForEntity(Mockito.any()
            , refundConsumerService.buildChargeRequest(reqContext), ChargeResponse.class))
            .thenReturn(new ResponseEntity<>(chargeResponse, HttpStatus.OK));

    refundConsumerService.refund(kafkaMessage);
    assertEquals(chargeResponse.getInstanceKey(), "testInstanceKey");
}

}

如何正确地写条件

Mockito.when(restTemplate.postForEntity(Mockito.any()
            , refundConsumerService.buildChargeRequest(reqContext), ChargeResponse.class))
            .thenReturn(new ResponseEntity<>(chargeResponse, HttpStatus.OK));

现在我收到了这个异常java.lang.IllegalArgumentException: URI is required

【问题讨论】：

标签： java junit mockito junit5

【解决方案1】：

当您使用@Mock 和@InjectMocks 时，您不需要创建这些对象的new 实例。 Mockito 将为您注入它。我猜你有这个异常是因为这个参数：Mockito.any() 在你的Mockito.when() 中。它必须是 Uri 类型。

您的代码将如下所示：

@ExtendWith(MockitoExtension.class)
class ServiceTest {

    @Mock
    private RestTemplate restTemplate;

    @InjectMocks
    private RConsumerService refundConsumerService;

    @Test
    public void sendRequestToBillingService() {
        ChargeResponse chargeResponse = new ChargeResponse();
        chargeResponse.setInstanceKey("testInstanceKey");

        KafkaMessage kafkaMessage = new KafkaMessage();
        kafkaMessage.setApplication_id(1L);
        kafkaMessage.setCompany_id(1111);
        TransactionRequestContext reqContext = refundConsumerService.createTxnRequestContext(kafkaMessage);

        URI mockUri = URI.create("http://localhost/mockUri");
        Mockito.when(restTemplate.postForEntity(mockUri
                        , refundConsumerService.buildChargeRequest(reqContext), ChargeResponse.class))
                .thenReturn(new ResponseEntity<>(chargeResponse, HttpStatus.OK));

        refundConsumerService.refund(kafkaMessage);
        assertEquals(chargeResponse.getInstanceKey(), "testInstanceKey");
    }

}

【讨论】：