spring-boot - spring-boot 上的集成测试抛出连接被拒绝

Question

我对 Spring Boot 进行了单元测试:

@RunWith(SpringJUnit4ClassRunner.class)
@SpringBootTest(classes = Application.class)
public class CustomerControllerIT {
    private RestTemplate restTemplate = new RestTemplate();
    @Test
    public void findAllCustomers() throws Exception {
        ResponseEntity<List<Customer>> responseEntity = restTemplate.exchange(
                "http://localhost:8080/Customer", HttpMethod.GET, null,
                new ParameterizedTypeReference<List<Customer>>() {
                });
        List<Customer> list = responseEntity.getBody();
        Assert.assertEquals(list.size(), 0);
    }
}

如果我在启动的应用程序上启动测试 - 测试正常

如果我尝试仅启动 IT，则会出现连接拒绝错误

我的 application.properties单次启动也是一样。
用于测试并位于资源和测试资源中。
Application.class 是:

@ComponentScan({"mypackage"})
@EntityScan(basePackages = {"mypackage.model"})
@EnableJpaRepositories(basePackages = {"mypackage.persistence"})
@SpringBootApplication
public class Application extends SpringBootServletInitializer {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

Answer 1

您必须使用正在运行的服务器运行测试 ,
如果您需要启动一个完整运行的服务器，您可以使用随机端口:

@SpringBootTest(webEnvironment=WebEnvironment.RANDOM_PORT)

An available port is picked at random each time your test runs

你需要这个 maven 依赖:

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-test</artifactId>        
</dependency>

例子:

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment=WebEnvironment.RANDOM_PORT)
public class TestRest {

    @Autowired
    private TestRestTemplate restTemplate;

    @Test
    public void findAllCustomers() throws Exception {
        ResponseEntity<List<Customer>> responseEntity = restTemplate.exchange(
               "/Customer", HttpMethod.GET, null,
               new ParameterizedTypeReference<List<Customer>>(){});
        List<Customer> list = responseEntity.getBody();
        Assert.assertEquals(list.size(), 0);
    }
}

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