Junit 使用 Spring 引導進行保存和更新的測試用例 REST

Question

我編寫了一個測試用例來保存和更新，如下所示，

@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));
}

兩種方法的 Controller 如下，

 @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!");
}

而ServiceImpl.java如下，

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

運行上述方法后，我收到如下錯誤，org.springframework.beans.factory.UnsatisfiedDependencyException: Error created bean with name 'com.naveen.MybatisApplicationTests': Unsatisfied dependency express through field 'user'; 嵌套異常是 org.springframework.beans.factory.NoSuchBeanDefinitionException：沒有“com.naveen.entity.User”類型的合格 bean 可用：預計至少有 1 個有資格作為自動裝配候選者的 bean。

Answer 1

您的測試邏輯錯誤（：

您將 userService 作為 Mock object - 如果您不自己編寫它，它將不會返回任何內容。 它不會在數據庫中保存任何東西。 您可以驗證調用此 Mock：

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

而且您不需要這些行：

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);

因為用戶也是模擬 object。

所以你的測試將是這樣的：

@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);
}