在FirebaseAuth通过电子邮件注册后，有没有办法对返回用户模型的函数进行单元测试

import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import org.junit.Before;
import org.junit.Test;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

// 导入要测试的类
import com.example.MyUserService;

// 导入被模拟的类
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.auth.UserRecord;

public class MyUserServiceTest {

    @Mock
    private FirebaseAuth firebaseAuth;

    @InjectMocks
    private MyUserService myUserService;

    @Before
    public void setUp() {
        MockitoAnnotations.initMocks(this);
    }

    @Test
    public void testGetUserModel() throws Exception {
        // 模拟FirebaseUser对象
        FirebaseUser firebaseUser = mock(FirebaseUser.class);
        when(firebaseUser.getUid()).thenReturn("user123");
        when(firebaseUser.getEmail()).thenReturn("test@example.com");

        // 模拟UserRecord对象
        UserRecord userRecord = mock(UserRecord.class);
        when(userRecord.getUid()).thenReturn("user123");
        when(userRecord.getEmail()).thenReturn("test@example.com");

        // 模拟FirebaseAuth返回值
        when(firebaseAuth.getUserByEmail("test@example.com")).thenReturn(userRecord);
        when(firebaseAuth.getUser("user123")).thenReturn(userRecord);

        // 调用被测试的函数
        UserModel userModel = myUserService.getUserModel("test@example.com");

        // 断言期望结果
        assertEquals("user123", userModel.getUserId());
        assertEquals("test@example.com", userModel.getEmail());
    }
}