Springboot 开发常用技术整合--笔记9--controller单元测试

测试类型

• 不带参数
• 带参数（必须传入的参数必须填全）
• controller单元测试-携带session

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HelloWorldController 控制器

@Controller
@RequestMapping("wechatTask")
public class HelloWorldController {
    static public String  HELLO = "Hello ,World";


    @GetMapping("/study/helloWorld")
    @ResponseBody
    public IJSONResult helloWorld(){
        //return "Hello ,World";
        return IJSONResult.ok("Hello ,World");
    }

    @GetMapping("/study/hello")
    @ResponseBody
    public String hello(){
        return HELLO;

    }

    @PostMapping("/study/helloParam")
    @ResponseBody
    //@RequestBody  ==采用@RestController 不再需要这个
    public IJSONResult helloParam(@RequestParam String name, @RequestParam int age){
        System.out.println(name);

        return IJSONResult.ok("Hello ,World :name =" +name+ ";age="+age);

    }


}

类postman运行情况

控制器的测试用例HelloWorldControllerTests

@RunWith(SpringRunner.class)
@WebAppConfiguration // 开启web应用配置
@SpringBootTest
public class HelloWorldControllerTests {
    private MockMvc mvc;

    @Before
    public void setUp() throws Exception {
        mvc = MockMvcBuilders.standaloneSetup(new HelloWorldController()).build();
    }
    @Test
    public void helloWorld() throws Exception{  //打印出正常结果
        MvcResult mvcResult = mvc.perform(
                MockMvcRequestBuilders.get("/wechatTask/study/helloWorld"))
                .andExpect(MockMvcResultMatchers.status().isOk())
                .andDo(MockMvcResultHandlers.print())
                .andReturn();

        System.out.println("http get方法结果:"+mvcResult.getResponse().getContentAsString());
        //http get方法结果:{"code":200,"msg":"OK","data":"Hello ,World","time":1560405746459,"ok":null}
    }

    @Test
    public void helloWorldParam() throws Exception{
        MvcResult mvcResult = mvc.perform(
                MockMvcRequestBuilders.post("/wechatTask/study/helloWorldParam")
                        .accept(MediaType.APPLICATION_JSON)
                        .param("name","雪梅") //注意如果是多个参数一定要全否则
                        .param("age","19")  )

                .andExpect(MockMvcResultMatchers.status().isOk())
                .andDo(MockMvcResultHandlers.print())
                .andReturn();

        System.out.println("http post 带参数的结果:"+mvcResult.getResponse().getContentAsString());
        //http post 带参数的结果:{"code":200,"msg":"OK","data":"Hello ,World :name =雪梅;age=19","time":1560407516953,"ok":null}
    }

    @Test
    public void hello() throws Exception {
        mvc.perform(
                MockMvcRequestBuilders
                        //.get("wechatTask/study/helloWorld")//回报错 java.lang.AssertionError: Status Expected :200 Actual   :404
                        .get("http://localhost:8080//wechatTask/study/hello")
                        .accept(MediaType.APPLICATION_JSON_UTF8)   //MediaType.APPLICATION_JSON_UTF8
        )


                .andExpect(status().isOk()) // 用于判断返回的期望值
                .andExpect(content().string(equalTo(HelloWorldController.HELLO)));

        //每页异常表示成功

    }
}

注意带参数的与不带参数的区别

控制器测试用例的运行截图

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参考文章

Spring Boot从Controller层进行单元测试
实战Spring Boot 2.0系列：全局异常处理和测试