java - Spring Boot 2 测试json序列化

Question

我有以下测试并且工作正常。然而在我看来它有点矫枉过正。 (也需要一段时间)调出一个完整的 spring 实例来测试一些 json 序列化。

@RunWith(SpringRunner.class)
@SpringBootTest
public class WirelessSerializationTest {

  @Autowired
  ObjectMapper objectMapper;

  @Test
  public void testDateSerialization() throws IOException {

    Resource resource = new ClassPathResource("subscription.json");
    File file = resource.getFile();

    CustomerSubscriptionDto customerSubscriptionDto = objectMapper.readValue(file, CustomerSubscriptionDto.class);
    LocalDateTime actualResult = customerSubscriptionDto.getEarliestExpiryDate();

    LocalDate expectedDate = LocalDate.of(2018, 10, 13);
    LocalTime expectedTime = LocalTime.of( 10, 18, 48);
    LocalDateTime expectedResult = LocalDateTime.of(expectedDate,expectedTime);
    Assert.assertEquals("serialised date ok", expectedResult, actualResult);

    String jsonOutput = objectMapper.writeValueAsString(customerSubscriptionDto);
    String expectedExpiryDate = "\"earliestExpiryDate\":\"2018-10-13T10:18:48Z\"";

  }

}

现在我已经能够通过删除 SpringRunner 来简化它。但是我没有在此处加载 springs jackson 配置。

public class WirelessSerializationTest {

  //@Autowired
  ObjectMapper objectMapper = new ObjectMapper();

所以我的问题是这样的。我可以在测试中测试和加载 Springs ObjectMapper 实例而不需要加载所有 Spring 吗？

Answer 1

使用@JsonTest代替@SpringBootTest

https://docs.spring.io/spring-boot/docs/current/api/org/springframework/boot/test/autoconfigure/json/JsonTest.html

https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-testing.html#boot-features-testing-spring-boot-applications-testing-autoconfigured-json-tests

它将加载与 jackson 序列化相关的上下文片段，以进行更多测试。