public void RandomBitsShouldHaveLeadingZeroBits(int leadingOneBits, int numberOfBits)
{
var count = 100; // arbitrary
for (var i = 0; i < count; i++)
{
_subject = new EntropyProviderLeadingOnes(new Random800_90(), leadingOneBits);
var result = _subject.GetEntropy(numberOfBits);
var expectedBitString = new BitString(leadingOneBits);
for (var j = 0; j < leadingOneBits; j++)
{
expectedBitString.Bits[j] = true;
}
Assert.AreEqual(expectedBitString.ToHex(), result.GetMostSignificantBits(leadingOneBits).ToHex());
}
}
public void ShouldThrowWhenAttemptingToPullLessBitsThanLeadingZeroBits(int leadingOneBits, int numberOfBits)
{
_subject = new EntropyProviderLeadingOnes(new Random800_90(), leadingOneBits);
Assert.Throws <ArgumentOutOfRangeException>(() => _subject.GetEntropy(numberOfBits));
}
