public void DecryptNumbers3()
{
Decryption numbers = new Decryption();
char[] key = "23456789012345678900987654321".ToCharArray();
string answer = numbers.DecryptNumbers(key);
Assert.AreEqual("12345678901234567899876543210", answer);
}
public void DecryptNumbers2()
{
Decryption numbers = new Decryption();
char[] key = "3579".ToCharArray();
string answer = numbers.DecryptNumbers(key);
Assert.AreEqual("2468", answer);
}