我目前正在尝试学习单元测试,并且我已经在 ASP.NET Core 中创建了项目,因此我可以学习在真实示例上进行测试。我想在 API Controller 中测试验证方法的快乐路径,因此它将返回 OkObjectResult。
到目前为止我所拥有的。
我想测试的 Controller 方法
[AllowAnonymous]
[HttpPost("authenticate")]
public IActionResult Authenticate([FromBody]User userParam)
{
var user = _userService.Authenticate(userParam.Nickname,
userParam.Password).Result;
if(user == null)
{
return BadRequest(
new { message = "Username or password is incorrect " }
);
}
return Ok(user);
}
验证实现 IUserService 的类中的方法:
public async Task<User> Authenticate(string nickname, string password)
{
var user = _repository.User.GetAllUsersAsync().Result.SingleOrDefault(u => u.Nickname == nickname && u.Password == password);
if(user == null)
{
return null;
}
var tokenHandler = new JwtSecurityTokenHandler();
var key = Encoding.ASCII.GetBytes(_appSettings.Secret);
var tokenDescription = new SecurityTokenDescriptor
{
Subject = new ClaimsIdentity(new Claim[]
{
new Claim(ClaimTypes.Name, user.UserId.ToString())
}),
Expires = DateTime.UtcNow.AddDays(7),
SigningCredentials = new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha256Signature)
};
var token = tokenHandler.CreateToken(tokenDescription);
user.Token = tokenHandler.WriteToken(token);
try
{
await _repository.User.UpdateUserAsync(user);
user.Password = null;
return user;
}
catch (Exception e)
{
return user;
}
}
我的单元测试:
[Fact]
public void Authenticate_WhenCalled_ReturnsOk()
{
//Arrange
var mockService = new Mock<IUserService>();
var user = new User()
{
UserId = 4,
IsAdmin = true,
Token = "12983912803981",
IsLogged = true,
MessagesSent = null,
MessagesReceived = null,
Nickname = "test3",
Password = "Str0ngP@ssword123",
UserChannels = null
};
var controller = new UsersController(_repository, _logger, mockService.Object);
//Act
var result = controller.Authenticate(user);
//Assert
var okResult = result.Should().BeOfType<OkObjectResult>();
}
但是,单元测试返回 BadRequest,而不是预期的 OkObjectResult。 这意味着该用户可能实际上为空并且抛出了 BadRequest。我应该模拟 Repository 而不是 IUserService 吗?
最佳答案
实际上,你做得很好,并且把所有事情都做得很完美(真正使用 AAA 的开发人员太少了,这非常令人难过),但请记住,Mock 默认返回 default(T) 值。因此,您的 Authenticate 方法被模拟并返回 default(User) ,即 null。 只需让它返回您的 stub 用户即可:
var mockService = new Mock<IUserService>();
var user = new User()
{
UserId = 4,
IsAdmin = true,
Token = "12983912803981",
IsLogged = true,
MessagesSent = null,
MessagesReceived = null,
Nickname = "test3",
Password = "Str0ngP@ssword123",
UserChannels = null
};
mockService.Setup(x=> x.Authenticate(It.IsAny(), It.IsAny())).Returns(user);
或者@xander提出的更严格版本:
mockService.Setup(x=> x.Authenticate("test3", "Str0ngP@ssword123")).Returns(user);
它还会检查您是否确实使用了传入 User 的值,而不仅仅是盲目地返回 Ok()。
关于c# - 测试验证方法,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/54638806/