public void HexToBufferConvertTest(int count)
{
var expectedBuffer = new byte[count];
new Random(count).NextBytes(expectedBuffer);
var expectedHexString = BitConverter.ToString(expectedBuffer).Replace("-", "").ToLowerInvariant();
var expectedHexBuffer = expectedHexString.ToCharArray();
// hex string -> buffer
var buffer = HexConvert.ToBytes(expectedHexString, 0, expectedHexString.Length);
Assert.Equal(expectedBuffer, buffer);
// hex buffer -> buffer
buffer = HexConvert.ToBytes(expectedHexBuffer, 0, expectedHexBuffer.Length);
Assert.Equal(expectedBuffer, buffer);
// hex buffer -> buffer (copy)
buffer = new byte[expectedBuffer.Length];
HexConvert.Decode(new ArraySegment <char>(expectedHexBuffer, 0, expectedHexBuffer.Length), new ArraySegment <byte>(buffer));
Assert.Equal(expectedBuffer, buffer);
// hex buffer -> buffer (copy)
buffer = new byte[expectedBuffer.Length];
HexConvert.Decode(expectedHexString, 0, expectedHexBuffer.Length, new ArraySegment <byte>(buffer));
Assert.Equal(expectedBuffer, buffer);
}
public void HexBytesDecodeTest(int count)
{
var outputBytes = new byte[count];
var r = new Random(count);
r.NextBytes(outputBytes);
var base64String = BitConverter.ToString(outputBytes).Replace("-", "").ToLowerInvariant();
var base64Buffer = base64String.ToCharArray().Select(v => (byte)v).ToArray();
// transform block
var inputOffset = r.Next(0, 100);
var inputBuffer = new byte[inputOffset + base64Buffer.Length + inputOffset];
Buffer.BlockCopy(base64Buffer, 0, inputBuffer, inputOffset, base64Buffer.Length);
var outputOffset = r.Next(0, 100);
var outputBuffer = new byte[outputOffset + outputBytes.Length];
var written = HexConvert.Decode(new ArraySegment <byte>(inputBuffer, inputOffset, base64Buffer.Length), new ArraySegment <byte>(outputBuffer, outputOffset, outputBuffer.Length - outputOffset), out var inputUsed, out var outputUsed);
var actualOutput = outputBuffer.Skip(outputOffset).ToArray();
Assert.Equal(outputBytes.Length, written);
Assert.Equal(outputBytes.Length, outputUsed);
Assert.Equal(base64Buffer.Length, inputUsed);
Assert.Equal(outputBytes, actualOutput);
}
