public unsafe void Should_correctly_convert_Guid_values(Endianness endianness)
{
var value = Guid.Parse("01020304-0506-0708-1020-304050607080");
var expectedBytes = endianness == Endianness.Big
? new byte[]
{
0x01, 0x02, 0x03, 0x04,
0x05, 0x06,
0x07, 0x08,
0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, 0x80
}
: new byte[]
{
0x04, 0x03, 0x02, 0x01,
0x06, 0x05,
0x08, 0x07,
0x10, 0x20, 0x30, 0x40, 0x50, 0x60, 0x70, 0x80
};
var converted = EndiannessConverter.Convert(value, endianness);
fixed(byte *b = expectedBytes)
converted.Should().Be(*(Guid *)b);
}
public void Should_correctly_swap_endianness_for_Guid_values(string guidString, string convertedGuidString)
{
var value = Guid.Parse(guidString);
var expectedConvertedValue = Guid.Parse(convertedGuidString);
var converted = EndiannessConverter.Swap(value);
converted.Should().Be(expectedConvertedValue);
}
public void Convert_should_swap_byte_order_if_number_is_not_in_requested_endianness()
{
EndiannessConverter.Convert(short.MaxValue, ForeignEndianness).Should().Be(EndiannessConverter.Swap(short.MaxValue));
EndiannessConverter.Convert(ushort.MaxValue, ForeignEndianness).Should().Be(EndiannessConverter.Swap(ushort.MaxValue));
EndiannessConverter.Convert(int.MaxValue, ForeignEndianness).Should().Be(EndiannessConverter.Swap(int.MaxValue));
EndiannessConverter.Convert(uint.MaxValue, ForeignEndianness).Should().Be(EndiannessConverter.Swap(uint.MaxValue));
EndiannessConverter.Convert(long.MaxValue, ForeignEndianness).Should().Be(EndiannessConverter.Swap(long.MaxValue));
EndiannessConverter.Convert(ulong.MaxValue, ForeignEndianness).Should().Be(EndiannessConverter.Swap(ulong.MaxValue));
EndiannessConverter.Convert(float.MaxValue, ForeignEndianness).Should().Be(EndiannessConverter.Swap(float.MaxValue));
EndiannessConverter.Convert(double.MaxValue, ForeignEndianness).Should().Be(EndiannessConverter.Swap(double.MaxValue));
}
public void Convert_should_not_swap_byte_order_if_number_is_already_in_requested_endianness()
{
EndiannessConverter.Convert(short.MaxValue, SystemEndianness).Should().Be(short.MaxValue);
EndiannessConverter.Convert(ushort.MaxValue, SystemEndianness).Should().Be(ushort.MaxValue);
EndiannessConverter.Convert(int.MaxValue, SystemEndianness).Should().Be(int.MaxValue);
EndiannessConverter.Convert(uint.MaxValue, SystemEndianness).Should().Be(uint.MaxValue);
EndiannessConverter.Convert(long.MaxValue, SystemEndianness).Should().Be(long.MaxValue);
EndiannessConverter.Convert(ulong.MaxValue, SystemEndianness).Should().Be(ulong.MaxValue);
EndiannessConverter.Convert(float.MaxValue, SystemEndianness).Should().Be(float.MaxValue);
EndiannessConverter.Convert(double.MaxValue, SystemEndianness).Should().Be(double.MaxValue);
}
public void Should_correctly_swap_endianness_for_ulong_values(ulong value)
{
var converted = EndiannessConverter.Swap(value);
var convertedBack = EndiannessConverter.Swap(converted);
var convertedWithBitConverter = BitConverter.ToUInt64(BitConverter.GetBytes(value).Reverse().ToArray(), 0);
converted.Should().Be(convertedWithBitConverter);
convertedBack.Should().Be(value);
}
