public void CanRoundTrip()
{
var bufferLength = 20;
var input = new long[] { 1234, 5678, 9101112, 13141516, 17181920, 21222324 };
var buffer = ByteBuffer.Allocate(bufferLength);
foreach (var value in input)
{
ZigZagEncoding.PutLong(buffer, value);
}
buffer.Position = 0;
var output = new long[input.Length];
for (int i = 0; i < output.Length; i++)
{
output[i] = ZigZagEncoding.GetLong(buffer);
}
CollectionAssert.AreEqual(input, output);
}
public int ReadCounts(ByteBuffer sourceBuffer, int lengthInBytes, int maxIndex, Action <int, long> setCount)
{
var idx = 0;
int endPosition = sourceBuffer.Position + lengthInBytes;
while (sourceBuffer.Position < endPosition && idx < maxIndex)
{
var item = ZigZagEncoding.GetLong(sourceBuffer);
if (item < 0)
{
var zeroCounts = -(item);
if (zeroCounts > int.MaxValue)
{
throw new ArgumentException("An encoded zero count of > int.MaxValue was encountered in the source");
}
idx += (int)zeroCounts;
}
else
{
setCount(idx++, item);
}
}
return(idx);
}