springboot整合junit

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

@RunWith(SpringRunner.class)
@SpringBootTest(classes = HelloApplication.class)
public class SbootTest {
    @Autowired
    private UserMapper userMapper;
    @Test
    public void getUserList(){
        List<MUser> userList=userMapper.getUserList();
        for (MUser user:userList){
            System.out.println(user);
        }
    }
}