<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.0.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

@RunWith(SpringRunner.class)
@SpringBootTest
public class SpringBootTest{
@Test
public void method(){
}
}

@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class)
@Test
public void method(){
}

@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class)
@WebAppConfiguration
 public class ControllerTest { 
    private MockMvc mockMvc; 
    @Autowired
    private WebApplicationContext wac; 
    @Before // 在測試開始前初始化工作
    public void setup() {
        this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac).build();
    }
 
    @Test
    public void getMessageTest() throws Exception { 
        MvcResult mvcResult = mockMvc.perform(MockMvcRequestBuilders.get("/test/getMessage"))
                .andDo(MockMvcResultHandlers.print()).andReturn();
 
        int status = mvcResult.getResponse().getStatus();
        String content = mvcResult.getResponse().getContentAsString();
 
        Assert.assertTrue("success", status == 200);
        Assert.assertFalse("failed", status != 200); 
        System.out.println("content" + content);  
    }

@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class)
@AutoConfigureMockMvc
public class ImkfMessageReportControllerTest {
    /**
     * 初始化MockMvc
     */
    @Autowired
    private MockMvc mvc;
 
    /**
     * 測試的controller
     */
    @MockBean
    private UserController userController;
 
    @Test
    public void getUserListTest() throws Exception {
        MvcResult mvcResult = mvc.perform(MockMvcRequestBuilders.get("/user/getUserList"))
                .andExpect(MockMvcResultMatchers.status().isOk())
                .andDo(MockMvcResultHandlers.print())
                .andReturn();
        String content = mvcResult.getResponse().getContentAsString();
        System.out.println("content" + content);
 
    }

@RunWith(MockitoJUnitRunner.class)
public class UserServiceTest {
 
    @Mock
    private UserMapper userMapper;
 
    @InjectMocks
    private UserService userService;
 
    @Test
    public void saveTest() throws Exception {
        User user = new User();
        user.setUserName(Long.valueOf("springBoot"));
        when(userMapper.insert(user)).thenReturn(user);
        int num = userService.save(user);
        Assert.assertEquals("success", 1, 1);  
    } 
}

 @Mock
 private User user;  
 when(user.get(eq("userName"))).thenReturn("testAdmin");
 when(user.get(eq("seq"))).thenReturn(4);
 when(user.get(eq("password"))).thenReturn("123456");
 when(user.get(eq("u_id"))).thenReturn("654321");

ProviderServiceImpl.java   -----服務(wù)類
 
import com.alibaba.dubbo.config.annotation.Service;
import com.example.demo.service.DemoService;
@Service
public class ProviderServiceImpl implements DemoService {
    @Override
    public String sayHello(String name) { 
        return "hello " + name + " !";
    }
} 
 
DemoApplicationTests.java  -----測試類
 
@RunWith(SpringRunner.class)
@SpringBootTest
public class DemoApplicationTests {
 
    @Resource
    DemoService providerService;
 
    @Test
    public void contextLoads() {
        String result = providerService.sayHello("Spring Boot Test");
        System.out.println("result is "+result);
       Assert.assertEquals("success","hello Spring Boot Test !" ,result);
    } 
}