public void Uninitialized()
{
SuccessResult <int> successResult = new SuccessResult <int>();
successResult.Should().BeOfType <SuccessResult <int> >();
successResult.IsSuccess.Should().BeFalse();
successResult.IsFailed.Should().BeTrue();
Static.GetValue(() => successResult.Value).Should().Throw <NotInitializedException>();
}