public void TestMinusHexToLong()
{
var hex = "-F";
var x = hex;
var s = '+';
if (x[0] == '-' || x[0] == '+')
{
s = x[0];
x = x.Remove(0, 1);
}
var y = Hex.Decode($"{"".PadRight(16 - x.Length, '0')}{x}");
if (BitConverter.IsLittleEndian)
{
Array.Reverse(y);
}
var y1 = BitConverter.ToInt64(y, 0);
if (s == '-')
{
y1 = 0 - y1;
}
var a = -15L;
Assert.AreEqual(a, y1);
Assert.AreEqual(a, HexParser.HexStringToLong(hex));
Assert.AreEqual(8, y.Length);
}
