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package com.yutao.usermgmt.service;
import com.yutao.usermgmt.domain.AuditLog;
import com.yutao.usermgmt.domain.User;
import com.yutao.usermgmt.event.UserLoginEvent;
import com.yutao.usermgmt.repository.UserRepository;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;
import org.springframework.context.ApplicationEventPublisher;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
import static org.junit.jupiter.api.Assertions.*;
import static org.mockito.Mockito.*;
@ExtendWith(MockitoExtension.class)
class UserServiceTest {
@Mock
private UserRepository userRepository;
@Mock
private AuditService auditService; // 模拟审计服务
@Mock
private ApplicationEventPublisher eventPublisher; // 模拟事件发布器
@InjectMocks
private UserService userService;
private User testUserWithId; // 用于模拟返回的带ID的用户
private User testUserNoId; // 用于作为传入参数的无ID用户
@BeforeEach
void setUp() {
// 这个对象代表了：当 userRepository.save() 被调用后，模拟它会返回什么。
// 它应该包含一个模拟的 ID，因为真实的保存操作会生成 ID。
testUserWithId = new User(1L, "Alice", "[email protected]");
// 这个对象代表了：作为输入参数传递给 createUser 方法的原始 User 对象，它没有 ID。
testUserNoId = new User("Alice", "[email protected]");
}
@Test
void testCreateUser_Success() {
// 设置模拟行为：当 userRepository.save() 接收到任何 User 对象时，
// 返回我们预先定义的带有 ID 的 testUserWithId 对象。
when(userRepository.save(any(User.class))).thenReturn(testUserWithId);
// 模拟审计服务
when(auditService.logAction(anyString(), anyString(), anyLong(), anyString())).thenReturn(mock(AuditLog.class));
// 调用被测试的 UserService 方法
User createdUser = userService.createUser(testUserNoId);
// 验证返回的用户对象
assertNotNull(createdUser);
assertEquals(testUserWithId.getId(), createdUser.getId());
assertEquals(testUserWithId.getName(), createdUser.getName());
assertEquals(testUserWithId.getEmail(), createdUser.getEmail());
// 验证 userRepository.save() 方法被调用了一次，且传入的参数是 testUserNoId
verify(userRepository, times(1)).save(testUserNoId);
// 验证 auditService.logAction() 被调用了一次
verify(auditService, times(1)).logAction("USER_CREATED", "User", testUserWithId.getId(),
testUserWithId.getEmail());
// 验证 UserLoginEvent 事件被发布了一次
verify(eventPublisher, times(1)).publishEvent(any(UserLoginEvent.class));
}
@Test
void testGetUserById_Found() {
when(userRepository.findById(1L)).thenReturn(Optional.of(testUserWithId));
Optional<User> foundUser = userService.getUserById(1L);
assertTrue(foundUser.isPresent());
assertEquals(testUserWithId.getName(), foundUser.get().getName());
verify(userRepository, times(1)).findById(1L);
}
@Test
void testGetUserById_NotFound() {
when(userRepository.findById(2L)).thenReturn(Optional.empty());
Optional<User> foundUser = userService.getUserById(2L);
assertFalse(foundUser.isPresent());
verify(userRepository, times(1)).findById(2L);
}
@Test
void testGetAllUsers() {
User user2 = new User(2L, "Bob", "[email protected]");
when(userRepository.findAll()).thenReturn(Arrays.asList(testUserWithId, user2));
List<User> users = userService.getAllUsers();
assertNotNull(users);
assertEquals(2, users.size());
verify(userRepository, times(1)).findAll();
}
@Test
void testUpdateUser_Success() {
User updatedDetails = new User("Alice Updated", "[email protected]");
User existingUser = new User(1L, "Alice", "[email protected]");
User finalUpdatedUser = new User(1L, "Alice Updated", "[email protected]");
when(userRepository.findById(1L)).thenReturn(Optional.of(existingUser));
when(userRepository.save(any(User.class))).thenReturn(finalUpdatedUser);
when(auditService.logAction(anyString(), anyString(), anyLong(), anyString())).thenReturn(mock(AuditLog.class));
User result = userService.updateUser(1L, updatedDetails);
assertNotNull(result);
assertEquals("Alice Updated", result.getName());
assertEquals("[email protected]", result.getEmail());
verify(userRepository, times(1)).findById(1L);
verify(userRepository, times(1)).save(any(User.class)); // 验证save被调用
verify(auditService, times(1)).logAction("USER_UPDATED", "User", finalUpdatedUser.getId(),
finalUpdatedUser.getEmail());
}
@Test
void testUpdateUser_NotFound() {
User updatedDetails = new User("Alice Updated", "[email protected]");
when(userRepository.findById(99L)).thenReturn(Optional.empty());
assertThrows(RuntimeException.class, () -> userService.updateUser(99L, updatedDetails));
verify(userRepository, times(1)).findById(99L);
verify(userRepository, never()).save(any(User.class)); // 确保没有调用save
verify(auditService, never()).logAction(anyString(), anyString(), anyLong(), anyString()); // 确保没有审计日志
}
@Test
void testDeleteUser_Success() {
when(userRepository.existsById(1L)).thenReturn(true);
doNothing().when(userRepository).deleteById(1L);
when(auditService.logAction(anyString(), anyString(), anyLong(), anyString())).thenReturn(mock(AuditLog.class));
userService.deleteUser(1L);
verify(userRepository, times(1)).existsById(1L);
verify(userRepository, times(1)).deleteById(1L);
verify(auditService, times(1)).logAction("USER_DELETED", "User", 1L, "System");
}
@Test
void testDeleteUser_NotFound() {
when(userRepository.existsById(2L)).thenReturn(false);
assertThrows(RuntimeException.class, () -> userService.deleteUser(2L));
verify(userRepository, times(1)).existsById(2L);
verify(userRepository, never()).deleteById(anyLong());
verify(auditService, never()).logAction(anyString(), anyString(), anyLong(), anyString());
}
}
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