public void SpecialVariableBaseNumberTest3()
{
BigInteger bigNum = BigInteger.Parse("536");
SpecialVariableBaseNumber num = new SpecialVariableBaseNumber(bigNum);
Assert.AreEqual(bigNum, num.ToBigInt());
}
public void DecodeTest()
{
SubstitutionCypher sc = new SubstitutionCypher("hgllo", alphabet);
SpecialVariableBaseNumber seed = new SpecialVariableBaseNumber(new List <int> {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0
});
Assert.AreEqual("hello", sc.Decode(seed));
}
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 SpecialVariableBaseNumberTest1()
{
List <int> numbers = new List <int>();
for (int i = 0; i <= 10; ++i)
{
numbers.Add((int)i);
}
SpecialVariableBaseNumber num = new SpecialVariableBaseNumber(numbers);
Assert.AreEqual("10,9,8,7,6,5,4,3,2,1,0", num.ToString());
}
public void Indexer()
{
List <int> numbers = new List <int>();
for (int i = 0; i <= 10; ++i)
{
numbers.Add((int)i);
}
SpecialVariableBaseNumber num = new SpecialVariableBaseNumber(numbers);
Assert.AreEqual(10, num[0]);
Assert.AreEqual(8, num[2]);
Assert.AreEqual(0, num[10]);
}
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 encodeTest()
{
SubstitutionCypher sc = new SubstitutionCypher("hello", alphabet);
Assert.AreEqual('a', alphabet[0]);
Assert.AreEqual('z', alphabet[25]);
SpecialVariableBaseNumber seed = new SpecialVariableBaseNumber(26);
Assert.AreEqual("hello", sc.Encode(seed));
seed = new SpecialVariableBaseNumber(new List <int> {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0
});
Assert.AreEqual("hfllo", sc.Encode(seed));
seed = new SpecialVariableBaseNumber(new List <int> {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0
});
Assert.AreEqual("hgllo", sc.Encode(seed));
}
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);
}
public void IncByTest()
{
List <int> numbers = new List <int>();
for (int i = 0; i <= 2; ++i)
{
numbers.Add(i);
}
SpecialVariableBaseNumber num = new SpecialVariableBaseNumber(numbers);
Assert.AreEqual("2,1,0", num.ToString());
num.IncBy(2);
Assert.AreEqual("1,0,1,0", num.ToString());
num.IncBy(1);
Assert.AreEqual("1,1,0,0", num.ToString());
num.IncBy(1);
Assert.AreEqual("1,1,1,0", num.ToString());
num.IncBy(1);
Assert.AreEqual("1,2,0,0", num.ToString());
num.IncBy(1);
Assert.AreEqual("1,2,1,0", num.ToString());
num.IncBy(1);
Assert.AreEqual("2,0,0,0", num.ToString());
num.IncBy(6);
Assert.AreEqual("3,0,0,0", num.ToString());
num.IncBy(6);
Assert.AreEqual("1,0,0,0,0", num.ToString());
}
public void SpecialVariableBaseNumberTest2()
{
SpecialVariableBaseNumber num = new SpecialVariableBaseNumber(3);
Assert.AreEqual("0,0,0", num.ToString());
}
