public void Decrypt_WithOver126Offset_ReturnsCorrectResult()
{
var cipher = new CeasarCipher(127);
var decrypted = cipher.Decrypt("b");
Assert.AreEqual("a", decrypted);
}
public void Dencrypt_WhenEmptyStringIsPassed_ReturnEmptyString()
{
var cipher = new CeasarCipher(offset: 0);
var encrypted = cipher.Decrypt("");
Assert.IsEmpty(encrypted);
}
public void Decrypt_WithNegativeOffset_ReturnsCorrectResult()
{
var cipher = new CeasarCipher(-1);
var decrypted = cipher.Decrypt("a");
Assert.AreEqual("b", decrypted);
}
public void Decrypt_WithOverflow_ShouldStartFromBegingingOfAlphabet()
{
var cipher = new CeasarCipher(offset: 1);
var word = "!";
var encrypted = cipher.Decrypt(word);
Assert.AreEqual("~", encrypted);
}
public void Decrypt_WithZeroOffset_ReturnTheSameWord()
{
var cipher = new CeasarCipher(offset: 0);
var word = "random";
var encrypted = cipher.Decrypt(word);
Assert.AreEqual(word, encrypted);
}
public void Decrypt_With126Offset_ReturnsSameString()
{
var cipher = new CeasarCipher(126);
var word = "word";
var decrypted = cipher.Decrypt(word);
Assert.AreEqual(word, decrypted);
}
public void Dencrypt_WhenPassedNull_ThrowsArgumentNullException()
{
var cipher = new CeasarCipher(offset: 0);
Assert.Throws<ArgumentNullException>(() =>
{
cipher.Decrypt(null);
});
}
public void EncryptDecrypt_RushinAndEnglish()
{
var cipher = new CeasarCipher(offset: 1);
var word = "аб ab АБ AB";
var encrypted = cipher.Encrypt(word);
Assert.AreEqual(word, cipher.Decrypt(encrypted));
}
public void Decrypt_WithOneOffset_ShiftsSymbolsOnOnePosition()
{
var cipher = new CeasarCipher(offset: 1);
var word = "b";
var encrypted = cipher.Decrypt(word);
Assert.AreEqual("a", encrypted);
}
public void EncryptDecrypt_WithRandomSting_ProducesTheSameResult()
{
var cipher = new CeasarCipher(offset: 5);
var word = "Testing with some random string";
var encrypted = cipher.Encrypt(word);
Assert.AreEqual(word, cipher.Decrypt(encrypted));
}
public void Setup()
{
railFence = new RailFence();
matrixShift = new MatrixShift();
matrixShiftB = new MatrixShiftB();
matrixShiftC = new MatrixShiftC();
ceasarCipher = new CeasarCipher();
vigenere = new Vigenere();
ciphertextAutokey = new CiphertextAutokey();
}
public void TestThatEncryptedMessageDecryptsCorrectly()
{
string message = "Hello World";
int offset = 3;
CeasarCipher cipher = new CeasarCipher(offset);
string encryptedMessage = cipher.Encrypt(message);
string decryptedMessage = cipher.Decrypt(encryptedMessage);
Assert.AreEqual(message, decryptedMessage, string.Concat("decrypted message : ", decryptedMessage, " does not match original message :", message));
}
public void Dencrypt_WhenPassedWrongSymbol_ThrowsArgumentOutOfRangeException()
{
var cipher = new CeasarCipher(offset: 0);
var nonSymbol = (char)127;
var nonSymbolString = new string(new[] { nonSymbol });
Assert.Throws<ArgumentOutOfRangeException>(() =>
{
cipher.Decrypt(nonSymbolString);
});
}
static void Main(string[] args)
{
Console.WriteLine("Enter word");
var word = Console.ReadLine();
Console.WriteLine("Enter keyNumber");
var number = Console.ReadLine();
CeasarCipher ceaserInctans = new CeasarCipher(Convert.ToInt32(number));
var encr = ceaserInctans.Encrypt(word);
Console.WriteLine(encr);
var denencr = ceaserInctans.Decrypt(encr);
Console.WriteLine(denencr);
Console.ReadKey();
}
private void CeasarCipherDecode(object sender, RoutedEventArgs e)
{
CeasarCipher ceasarCipher = new CeasarCipher();
string value = CeasarCipherDecodeInput.Text;
int key1, key2;
try
{
key1 = Int32.Parse(CeasarCipherDecodeKey1Input.Text);
key2 = Int32.Parse(CeasarCipherDecodeKey2Input.Text);
}
catch (Exception ex)
{
MessageBox.Show("Podaj liczby", "Zła waga", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
CeasarCipherDecodeOutput.Text = ceasarCipher.Decrypt(value, key1, key2);
}
public void Encrypt_WithOneOffset_ShiftsSymbolsOnOnePositionRight()
{
var cipher = new CeasarCipher(1);
var word = "a";
var encrypted = cipher.Encrypt(word);
Assert.AreEqual("b", encrypted);
}
public void Encrypt_WithOffsetMinusOne_ShiftsSymbolsOnOnePositionBack()
{
var cipher = new CeasarCipher(offset: -1);
var word = "b";
var encrypted = cipher.Encrypt(word);
Assert.AreEqual("a", encrypted);
}
public void Encrypt_RushinSimvols()
{
var cipher = new CeasarCipher(offset: 1);
var word = "абвг";
var encrypted = cipher.Encrypt(word);
Assert.AreEqual("бвгд", encrypted);
}
