public unsafe void CompressDouble39Test()
{
int dataLen = 39;
byte[] data = GetRandomBytes(dataLen);
byte[] expected = ComputeDoubleSha(data);
using Sha256 sha = new Sha256();
uint *hPt = sha.GethPt();
uint *wPt = sha.GetwPt();
int dIndex = 0;
for (int i = 0; i < 9; i++, dIndex += 4)
{
wPt[i] = (uint)((data[dIndex] << 24) | (data[dIndex + 1] << 16) | (data[dIndex + 2] << 8) | data[dIndex + 3]);
}
wPt[9] = (uint)((data[36] << 24) | (data[37] << 16) | (data[38] << 8) | 0b00000000_00000000_00000000_10000000U);
wPt[15] = (uint)dataLen * 8;
sha.Init(hPt);
sha.CompressDouble39(hPt, wPt);
byte[] actual = sha.GetBytes(hPt);
Assert.Equal(expected, actual);
}