c#nunit集成测试(有例外)

我创建了一个测试,如下所示:

[Test]
public async Task MemberCannotCreateConfirmedUser()
{
    var services = UserContext.GivenServices();
    await services.LoginAsync(new Claim("User", "Member"));
    Assert.That(await services.WhenCreateUserAsync("AAAB", "AAAB", "AAAB", "FIN", emailConfirmed: true), Throws.TypeOf<ArgumentException>());
}

实际抛出错误的代码如下所示:

var principal = _httpContext.User as ClaimsPrincipal;
var isAdmin = principal?.FindFirst("Administrator") != null;
if (!isAdmin)
{
    if (model.EmailConfirmed) throw new ArgumentException("Only an administrator can confirm a new user");
}

当我运行测试时,它失败并显示:

系统ArgumentException:只有管理员才能确认新用户

但这确实是我测试的目的。它应该通过,因为它抛出 ArgumentException 错误