springboot test 使用

@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class)
public class Springtest {

    @Autowired
    private WcUnitService wcUnitService;
    
    @Test
    public void test(){
        List<WcUnit> list = new ArrayList<WcUnit>();
        
        list = wcUnitService.selectunitAll();
        if(list.size()>0){
            System.out.println(list.get(0).getName());
        }else{
            System.out.println("测试无数据");
        }
    }
    
}