public void testEncodeDecodeMod3Sves()
{
Random rng = new Random();
byte[] data = new byte[180];
rng.NextBytes(data);
int[] coeffs = ArrayEncoder.DecodeMod3Sves(data, 960);
byte[] data2 = ArrayEncoder.EncodeMod3Sves(coeffs);
Assert.True(data.SequenceEqual(data2));
}
private void EncodeDecodeMod3Sves()
{
Random rng = new Random();
bool[] skip = new bool[] { true, false };
foreach (bool skipFirst in skip)
{
for (int i = 0; i < 10; i++)
{
int N = (rng.Next(1000) + 100) * 16;
byte[] data = new byte[N * 3 / 16];
rng.NextBytes(data);
data[data.Length - 1] = 0;
int[] coeffs = ArrayEncoder.DecodeMod3Sves(data, N, skipFirst);
byte[] data2 = ArrayEncoder.EncodeMod3Sves(coeffs, skipFirst);
if (!Compare.AreEqual(data, data2))
{
throw new Exception("ArrayEncoder EncodeDecodeMod3Sves test failed!");
}
}
}
}
/**
* Encodes a polynomial with ternary coefficients to binary.
* <code>coeffs[2*i]</code> and <code>coeffs[2*i+1]</code> must not both equal -1 for any integer <code>i</code>,
* so this method is only safe to use with polynomials produced by <code>fromBinary3Sves()</code>.
*
* @return the encoded polynomial
*/
public byte[] ToBinary3Sves()
{
return(ArrayEncoder.EncodeMod3Sves(coeffs));
}