利用Spring Boot配置的TestNG测试用例详解

与JUnit不同，Spring Boot本身没有提供与TestNG集成的基础设施。

那么如何利用Spring Boot的配置，执行一个TestNG测试用例呢？在Spring Boot提供的大量samples中，有一个spring-boot-sample-testng可供参考。
基于该sample中，我们的TestNG测试类如下：
@SpringBootTest(classes = { ClientLauncher.class }, webEnvironment = WebEnvironment.DEFINED_PORT)
@DirtiesContext(classMode = ClassMode.AFTER_CLASS)
public class TestHealthCheckTestNGClient extends AbstractTestNGSpringContextTests {

@Autowired
private HealthCheckClient healthCheckClient;

@Test
public void getHealthCheckIntegrationTest(){
ResponseEntity<List<Health>> healthCheckResponse = healthCheckClient.getHealthCheck();
assert HttpStatus.OK.equals(healthCheckResponse.getStatusCode());
}
}
注意，测试类继承了spring-test专为TestNG实现的AbstractTestNGSpringContextTests类。
对比JUnit测试用例，由于spring-test模块提供了专门的集成JUnit的SpringRunner，测试用例的写法就与JUnit测试用例的写法非常类似了，代码示例如下：
@RunWith(SpringRunner.class)
@SpringBootTest(classes = { ClientLauncher.class }, webEnvironment = WebEnvironment.DEFINED_PORT)
@DirtiesContext(classMode = ClassMode.AFTER_CLASS)
public class TestHealthCheckClient {

@Autowired
private HealthCheckClient healthCheckClient;

@Test
public void getHealthCheckIntegrationTest() throws Exception{
ResponseEntity<List<Health>> healthCheckResponse = healthCheckClient.getHealthCheck();
Assert.assertEquals(HttpStatus.OK, healthCheckResponse.getStatusCode());
}
}

参考链接： https://github.com/spring-projects/spring-boot/tree/master/spring-boot-samples/spring-boot-sample-testng