这是我的控制器类函数，我想测试一下，但我不知道为什么检查OkObject为空。我需要一些建议和解决这个问题的方法：
[HttpGet]
public async Task<IActionResult> LoginAsync(string phoneNumber, string pass)
{
User login = new User();
login.Phone = phoneNumber;
login.Password = pass;
IActionResult response = Unauthorized();
var user = await _loginService.AuthenticateUserAsync(login);
if(user != null)
{
var tokenStr = _loginService.GenerateJWT(user);
response = Ok(new { token = tokenStr });
}
return response;
}
我的测试功能是：
[Fact]
public async Task LoginAsync_ReturnOk()
{
var mock = new Mock<ILoginService>();
var controller = new LoginController(mock.Object);
var phone = "0123456789";
var pass = "abc123";
var okResult = await controller.LoginAsync(phone, pass);
Assert.IsType<OkObjectResult>(okResult as OkObjectResult);
}
我真的需要你们的帮助。
测试失败，因为未将模拟依赖项配置为当前测试用例的预期行为。
所述测试用例的受试者需要
//...
if(user != null)
//...
为true，但未为测试用例配置_loginService
//...
var user = await _loginService.AuthenticateUserAsync(login);
//...
这意味着受试者将返回UnauthorizedResult
这将导致okResult as OkObjectResult为空
需要安排测试，以使测试用例在执行时表现出预期的
[Fact]
public async Task LoginAsync_Should_Return_Ok() {
// Arrange
var mock = new Mock<ILoginService>();
var user = new UserResult(); //Or what ever the actual user type is
mock.Setup(_ => _.AuthenticateUserAsync(It.IsAny<User>()))
.ReturnsAsync(user);
string tokenStr = "some token value";
mock.Setup(_ => _.GenerateJWT(user)).Returns(tokenStr);
LoginController controller = new LoginController(mock.Object);
string phone = "0123456789";
string pass = "abc123";
//Act
IActionResult response = await controller.LoginAsync(phone, pass);
//Assert
OkObjectResult okResult = Assert.IsType<OkObjectResult>(response);
//Optional: additional assertions for this test case
dynamic value = okResult.Value;
Assert.NotNull(value);
string token = (string)value.token;
Assert.Equal(token, tokenStr);
}
由于也有未经授权的响应的可能结果，这里有另一个测试案例来涵盖控制器动作
[Fact]
public async Task LoginAsync_Should_Return_Unauthorized() {
//Arrange
var mock = new Mock<ILoginService>();
mock.Setup(_ => _.AuthenticateUserAsync(It.IsAny<User>()))
.ReturnsAsync((UserResult)null); //Or what ever the actual user type is
LoginController controller = new LoginController(mock.Object);
string phone = "0123456789";
string pass = "abc123";
//Act
IActionResult response = await controller.LoginAsync(phone, pass);
//Assert
Assert.IsType<UnauthorizedResult>(response);
}