private static (MemoryStream baseDataStream, MemoryStream baseSignatureStream, byte[] newData, MemoryStream newDataStream) PrepareTestDataWithOctodiffSignature(int baseNumberOfBytes, int newDataNumberOfBytes,
short chunkSize)
{
var baseData = new byte[baseNumberOfBytes];
new Random().NextBytes(baseData);
var baseDataStream = new MemoryStream(baseData);
var baseSignatureStream = new MemoryStream();
var signatureBuilder = new OctodiffSignatureBuilder
{
ChunkSize = chunkSize
};
signatureBuilder.Build(baseDataStream, new OctodiffSignatureWriter(baseSignatureStream));
baseSignatureStream.Seek(0, SeekOrigin.Begin);
var newData = new byte[newDataNumberOfBytes];
new Random().NextBytes(newData);
var newDataStream = new MemoryStream(newData);
return(baseDataStream, baseSignatureStream, newData, newDataStream);
}