Mock 示例

步骤

整个测试过程非常有规律：

1. 准备测试环境
2. 通过MockMvc执行请求
   3.1. 添加验证断言
   3.2. 添加结果处理器
   3.3. 得到MvcResult进行自定义断言/进行下一步的异步请求
3. 卸载测试环境

spring提供了mockMvc模块，可以模拟web请求来对controller层进行单元测试

示例：MockMvc

第一步：添加Maven依赖

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

第二步：框架

• Controller代码：

@RestController
@RequestMapping("/")
public class DeptController {
}

• 测试代码

@RunWith(SpringRunner.class)
@SpringBootTest
public class DeptControllerTest {
    @Autowired
    private WebApplicationContext wac;
    private MockMvc mockMvc;
    @Before
    public void setup() {
        this.mockMvc = MockMvcBuilders.webAppContextSetup(this.wac).build();
    }
}

第三步：细节

1、

@GetMapping("fun1")
public List<Dept> fun1() {
   List<Dept> deptList = new ArrayList<>();
   deptList.add(new Dept(11, "aa", "aaaaaa"));
   deptList.add(new Dept(22, "bb", "bbbbbb"));
   deptList.add(new Dept(33, "cc", "cccccc"));
   deptList.add(new Dept(44, "dd", "dddddd"));
   return deptList;
}

测试代码：

@Test
public void fun1() throws Exception {
    String mvcResult= mockMvc.perform(get("/fun1"))
            .andReturn().getResponse().getContentAsString();
    System.out.println("Result === "+mvcResult);
}

2、

   @GetMapping("fun21")
   public Dept fun21( int deptno){
       Dept dept = new Dept();
       dept.setDeptno(deptno);
       return dept;
   }

测试代码：

@Test
public void fun21() throws Exception {
    mockMvc.perform((get("/fun21").param("deptno", "1"))).andExpect(status().isOk()).andDo(print());
}

3、

   @GetMapping("fun22/{deptno}")
   public Dept fun22(@PathVariable int deptno){
       Dept dept = new Dept();
       dept.setDeptno(deptno);
       return dept;
   }

测试代码：

@Test
public void fun22() throws Exception {
    mockMvc.perform(get("/fun22/6")).andExpect(status().isOk()).andDo(print());
}

4、

@GetMapping("fun3")
public Dept fun3(){
   return new Dept(11, "aa", "aaaaaa");
}

测试代码：

@Test
public void fun3() throws Exception {
    String mvcResult = mockMvc.perform(get("/fun3"))
            .andReturn().getResponse().getContentAsString();
    System.out.println("Result === " + mvcResult);
}

5、

   @PostMapping("fun4")
   public Dept fun4(Dept dept){
    dept.setDeptno(8989);
       return dept;
   }

测试代码：

@Test
public void fun4() throws Exception {//post
    final MultiValueMap<String, String> params = new LinkedMultiValueMap<>();
    params.add("dname", "sales");
    params.add("loc", "china");
    String mvcResult=  mockMvc.perform(MockMvcRequestBuilders.post("/fun4")
            .params(params)).andReturn().getResponse().getContentAsString();
    System.out.println("Result === "+mvcResult);
}

6、

   @PutMapping("fun5")
   public Dept fun5(Dept dept){
       dept.setDeptno(8989);
       return dept;
   }

测试代码：

@Test
public void fun5() throws Exception {//put
    final MultiValueMap<String, String> params = new LinkedMultiValueMap<>();
    params.add("dname", "sales");
    params.add("loc", "china");
    String mvcResult=  mockMvc.perform(MockMvcRequestBuilders.put("/fun5")
            .params(params)).andReturn().getResponse().getContentAsString();
    System.out.println("Result === "+mvcResult);
}

7、

   @PatchMapping("fun6")
   public Dept fun6(Dept dept){
       dept.setDeptno(8989);
       return dept;
   }

测试代码：

@Test
public void fun6() throws Exception {//patch
    final MultiValueMap<String, String> params = new LinkedMultiValueMap<>();
    params.add("dname", "sales");
    params.add("loc", "china");
    String mvcResult=  mockMvc.perform(MockMvcRequestBuilders.patch("/fun6")
            .params(params)).andReturn().getResponse().getContentAsString();
    System.out.println("Result === "+mvcResult);
}

8、

   @DeleteMapping("fun7/{deptno}")
   public Dept fun7(@PathVariable int deptno){
       Dept dept = new Dept();
       dept.setDeptno(deptno);
       return dept;
   }

测试代码：

@Test
public void fun7() throws Exception {//delete
    mockMvc.perform(MockMvcRequestBuilders.delete("/fun7/6"))
            .andReturn();
}