java - 如何配置Spring TestRestTemplate

Question

我有一个 REST (spring-hateoas) 服务器，我想用 JUnit 测试来测试它。因此，我正在使用自动注入(inject)的 TestRestTemplate。

但是我现在如何向这个预配置的 TestRestTemplate 添加更多配置？我需要配置 rootURI 并添加拦截器。

这是我的 JUnit 测试类:

@RunWith(SpringRunner.class)
@ActiveProfiles("test")
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)      

public class RestEndpointTests {
  private Logger log = LoggerFactory.getLogger(this.getClass());

  @LocalServerPort
  int localServerPort;

  @Value(value = "${spring.data.rest.base-path}")   // nice trick to get basePath from application.properties
  String basePath;

  @Autowired
  TestRestTemplate client;    //  how to configure client?

  [... here are my @Test methods that use client ...]
}

The documentation sais that a static @TestConfiguration class can be used.但是在该静态类中我无法访问 localServerPort 或 basePath:

  @TestConfiguration
  static class Config {

    @Bean
    public RestTemplateBuilder restTemplateBuilder() {
      String rootUri = "http://localhost:"+localServerPort+basePath;    // <=== DOES NOT WORK
      log.trace("Creating and configuring RestTemplate for "+rootUri);
      return new RestTemplateBuilder()
        .basicAuthorization(TestFixtures.USER1_EMAIL, TestFixtures.USER1_PWD)
        .errorHandler(new LiquidoTestErrorHandler())
        .requestFactory(new HttpComponentsClientHttpRequestFactory())
        .additionalInterceptors(new LogRequestInterceptor())
        .rootUri(rootUri);
    }

  }

我最重要的问题:为什么 TestRestTemplate 不考虑 application.properties 中的 spring.data.rest.base-path首先？ beeing complete preconfigured 的想法不是这个包装类的整个用例吗？

医生说

If you are using the @SpringBootTest annotation, a TestRestTemplate is automatically available and can be @Autowired into you test. If you need customizations (for example to adding additional message converters) use a RestTemplateBuilder @Bean.

完整的 Java 代码示例看起来如何？

Answer 1

我知道这是一个老问题，您现在可能已经找到了另一个解决方案。但无论如何，我正在为其他像我一样绊倒的人回答。我有一个类似的问题，并最终在我的测试类中使用 @PostConstruct 来构建一个配置为我喜欢的 TestRestTemplate，而不是使用 @TestConfiguration。

    @RunWith(SpringJUnit4ClassRunner.class)
    @EnableAutoConfiguration
    @SpringBootTest(classes = {BackendApplication.class}, webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
    public class MyCookieClientTest {
        @LocalServerPort
        int localPort;

        @Autowired
        RestTemplateBuilder restTemplateBuilder;

        private TestRestTemplate template;

        @PostConstruct
        public void initialize() {
            RestTemplate customTemplate = restTemplateBuilder
                .rootUri("http://localhost:"+localPort)
                ....
                .build();
            this.template = new TestRestTemplate(customTemplate,
                 null, null, //I don't use basic auth, if you do you can set user, pass here
                 HttpClientOption.ENABLE_COOKIES); // I needed cookie support in this particular test, you may not have this need
        }
    }