public void AndNotBigInteger()
{
foreach (BigInteger[] element in booleanPairs)
{
BigInteger i1 = element[0], i2 = element[1];
BigInteger res = BigMath.AndNot(i1, i2);
int len = System.Math.Max(i1.BitLength, i2.BitLength) + 66;
for (int i = 0; i < len; i++)
{
Assert.True((BigInteger.TestBit(i1, i) && !BigInteger.TestBit(i2, i)) == BigInteger.TestBit(res, i), "andNot");
}
// asymmetrical
i1 = element[1];
i2 = element[0];
res = BigMath.AndNot(i1, i2);
for (int i = 0; i < len; i++)
{
Assert.True((BigInteger.TestBit(i1, i) && !BigInteger.TestBit(i2, i)) == BigInteger.TestBit(res, i), "andNot reversed");
}
}
Assert.Throws <NullReferenceException>(() => BigMath.AndNot(BigInteger.Zero, null));
BigInteger bi = new BigInteger(0, new byte[] { });
Assert.Equal(BigInteger.Zero, BigMath.AndNot(bi, BigInteger.Zero));
}