public void IncTest()
{
SpecialVariableBaseNumber num = new SpecialVariableBaseNumber();
Assert.AreEqual("0", num.ToString());
for (int i = 0; i < 12; ++i)
{
num.Inc();
}
Assert.AreEqual("2,0,0,0", num.ToString());
}
public void ToBigIntTest()
{
SpecialVariableBaseNumber num = new SpecialVariableBaseNumber();
Assert.AreEqual(0, (int)num.ToBigInt());
for (int i = 1; i < 100; ++i)
{
num.Inc();
Assert.AreEqual(i, (int)num.ToBigInt());
}
num = new SpecialVariableBaseNumber();
Assert.AreEqual(0, (int)num.ToBigInt());
for (int i = 1; i < 1000; ++i)
{
num.IncBy(17);
Assert.AreEqual(17 * i, (int)num.ToBigInt());
}
}
public void EncodeDecodePairs()
{
SpecialVariableBaseNumber seed = new SpecialVariableBaseNumber(26);
seed.Inc();
for (int i = 0; i < 100000; ++i)
{
string originalString = "abcdefghijklmnopqrstuvwxyz";
SubstitutionCypher original = new SubstitutionCypher(originalString, alphabet);
if (i == 0)
{
Console.WriteLine($"{original.NumSeeds} possible combinations");
}
string codedString = original.Encode(seed);
Assert.AreNotEqual(originalString, codedString);
SubstitutionCypher coded = new SubstitutionCypher(codedString, alphabet);
Assert.AreEqual(originalString, coded.Decode(seed));
seed.IncBy(732);
}
SubstitutionCypher usesLargeSeed = new SubstitutionCypher("hello", alphabet);
seed = new SpecialVariableBaseNumber(26);
seed.IncBy(usesLargeSeed.NumSeeds - 1);
string borderEncoded = usesLargeSeed.Encode(seed);
Console.WriteLine($"Using seed {seed}");
Console.WriteLine($"Coded: {borderEncoded}");
SubstitutionCypher reverseWithLargeSeed = new SubstitutionCypher(borderEncoded, alphabet);
string decoded = reverseWithLargeSeed.Decode(seed);
Console.WriteLine($"Decoded: {decoded}");
Assert.AreEqual("hello", decoded);
}