public void BanUser_IncorrectUserID_ThrowArgumentException()
{
var account = new AccountCategory(new VkApi { AccessToken = "token", Browser = null });
// ReSharper disable AssignNullToNotNullAttribute
Assert.That(() => account.BanUser(-10), Throws.InstanceOf<ArgumentException>().And.Property("ParamName").EqualTo("userId"));
Assert.That(() => account.BanUser(0), Throws.InstanceOf<ArgumentException>().And.Property("ParamName").EqualTo("userId"));
// ReSharper restore AssignNullToNotNullAttribute
}