public void Should_calculate_proper_distance_offset_for_int256()
        {
            var a = new KNodeId256(0, 0, 0, 0);
            var b = new KNodeId256(0, 0, 0, 1);
            var o = (Span <byte>) new byte[32];
            var s = (ReadOnlySpan <byte>)o;

            KNodeId.CalculateDistance(a, b, o);
            s.CountLeadingZeros().Should().Be(255);
        }
        public void Should_calculate_proper_distance_offset_for_int64()
        {
            var a = new KNodeId64(0);
            var b = new KNodeId64(1);
            var o = (Span <byte>) new byte[8];
            var s = (ReadOnlySpan <byte>)o;

            KNodeId.CalculateDistance(a, b, o);
            s.CountLeadingZeros().Should().Be(63);
        }