使用Spring Boot REST保存和更新的Junit测试用例

Question

我写了一个测试用例来保存

@InjectMocks
UserController uc;

@Mock
UserService userService;
@Mock
User user;

@Test
public void saveUser() throws Exception {
    SimpleDateFormat simpleformat = new SimpleDateFormat("yyyy-MM-dd hh:mm:s+ss");
    
    Long id= 2L;
    String userName = "John";
    String passWord = "john";
    Date otpSentDate = simpleformat.parse("2019-12-24 01:22:05+00");
    Date createdDate = simpleformat.parse("2019-12-24 01:22:05+00");
    Date updatedDate = simpleformat.parse("2019-12-24 01:22:05+00");
    user.setId(id);user.setUserName(userName);user.setPassWord(passWord);user.setOtpSentDate(otpSentDate);
    user.setCreatedDate(createdDate);user.setUpdatedDate(updatedDate);
    assertEquals(1, uc.saveUser(user));
}

@Test
public void updateUser() throws Exception {
    SimpleDateFormat simpleformat = new SimpleDateFormat("yyyy-MM-dd hh:mm:s+ss");
    
    Long id= 2L;
    String userName = "John";
    String passWord = "john";
    Date otpSentDate = simpleformat.parse("2019-12-24 01:22:05+00");
    Date createdDate = simpleformat.parse("2019-12-24 01:22:05+00");
    Date updatedDate = simpleformat.parse("2019-12-24 01:22:05+00");
    user.setId(id);user.setUserName(userName);user.setPassWord(passWord);user.setOtpSentDate(otpSentDate);
    user.setCreatedDate(createdDate);user.setUpdatedDate(updatedDate);
    assertEquals(1, uc.updateUser(user));
}

两种方法的控制器如下所示：，

 @PostMapping("/saveUser")
public int saveUser(@RequestBody User user) throws Exception {
    if (user.getUserName() == "" || user.getPassWord() == "") {
        throw new Exception("User name or Password should not be empty!");
    } else {
        userService.saveUser(user);
        System.out.println("Inserted data with id: "+ user.getId());
    }
    return 1;
}
@PutMapping("/updateUser")
public void updateUser(@RequestBody User user) {
    userService.updateUser(user);
    System.out.println("User with id "+ user.getId() + " updated successfully!");
}

还有ServiceImpl。java如下所示：，

@Override
public void saveUser(User user) {
    userMapper.saveUser(user);
}
 @Override
public void updateUser(User user) {
    userMapper.updateUser(user);
}

运行上述方法后，我得到如下错误，org。springframework。豆。工厂UnsatisfiedPendencyException:创建名为“com”的bean时出错。纳文。MybatisApplicationTests”：通过字段“用户”表示的未满足的依赖关系；嵌套的异常是org。springframework。豆。工厂NoSuchBeanDefinitionException:没有“com”类型的合格bean。纳文。实体用户可用：至少需要1个符合autowire候选资格的bean。

Answer 1

你测试的逻辑是错误的（：

用户服务是一个Mock对象——如果你不自己写它，它不会返回任何东西。它不会在数据库中保存任何东西。你可以验证调用这个Mock：

then(userService).should(times(1)).saveUser(any(User.class));

您不需要这些行：

SimpleDateFormat simpleformat = new SimpleDateFormat("yyyy-MM-dd hh:mm:s+ss");
    
    Long id= 2L;
    String userName = "John";
    String passWord = "john";
    Date otpSentDate = simpleformat.parse("2019-12-24 01:22:05+00");
    Date createdDate = simpleformat.parse("2019-12-24 01:22:05+00");
    Date updatedDate = simpleformat.parse("2019-12-24 01:22:05+00");
    user.setId(id);user.setUserName(userName);user.setPassWord(passWord);user.setOtpSentDate(otpSentDate);
    user.setCreatedDate(createdDate);user.setUpdatedDate(updatedDate);

因为user也是一个Mock对象。

所以你的测试是这样的：

@Test
public void saveUser() throws Exception {
//given
     given(user.getUserName()).willReturn("Username");
     given(user.getPassWord()).willReturn("Password");
     given(user.getId()).willReturn(1);
     given(userService.saveUser(any(User.class))).willReturn(user);
//when
     int result = uc.saveUser(user);
//then
     then(userService).should(times(1)).saveUser(any(User.class));
     assertEquals(1, result);
}