public static void EmptyKeyThrowsException()
{
var random = new Randomizer();
var encoder = new VigenereEncoder();
var message = random.GetString();
var key = string.Empty;
_ = Assert.Throws <ArgumentOutOfRangeException>(() => encoder.Encode(message, key));
_ = Assert.Throws <ArgumentOutOfRangeException>(() => encoder.Decode(message, key));
}
public void EncryptWithTextExceptionTest()
{
// arrange
string text = " ";
string key = "пелнь";
var ve = new VigenereEncoder();
// act
ve.Encrypt(text, key);
}
public void EncryptWithKeyExceptionTest()
{
// arrange
string text = "АЁЙ цйуфы 123 !э ю.,:'~sadawq";
string key = "пелENGLISH_LEtterOMG213131231~нь";
var ve = new VigenereEncoder();
// act
ve.Encrypt(text, key);
}
public static void Encode_KeyIsTooShort_KeyIsAppended()
{
// Arrange
var encoder = new VigenereEncoder();
var message = new string('a', 2);
var key = new string('a', 1);
// Act
var encoded = encoder.Encode(message, key);
var decoded = encoder.Decode(encoded, key);
// Assert
Assert.AreEqual(message, decoded);
}
public static void DecodedStringIsTheSame()
{
// Arrange
var random = new Randomizer();
var encoder = new VigenereEncoder();
var message = random.GetString();
var key = random.GetString(random.Next(0, 1000));
// Act
var encoded = encoder.Encode(message, key);
var decoded = encoder.Decode(encoded, key);
// Assert
Assert.AreEqual(message, decoded);
}
public void DecryptTest()
{
// arrange
string text1 = "пкх тцшвч 123 !м г.,:'~sadawq";
string text2 = "узй вобро 123 !я ю.,:'~sadawq";
string text3 = "ккф зфшям 123 !з г.,:'~sadawq";
string key1 = "пельмень";
string key2 = "увалень";
string key3 = "кекс";
string expected = "аёй цйуфы 123 !э ю.,:'~sadawq";
var ve = new VigenereEncoder();
// act
string ans1 = ve.Decrypt(text1, key1);
string ans2 = ve.Decrypt(text2, key2);
string ans3 = ve.Decrypt(text3, key3);
// assert
Assert.AreEqual(expected, ans1);
Assert.AreEqual(expected, ans2);
Assert.AreEqual(expected, ans3);
}
public EncodeController(VigenereEncoder encoder, FileManager fileManager)
{
this.encoder = encoder;
this.fileManager = fileManager;
}
static void Main(string[] args)
{
string text, key;
while (true)
{
Console.WriteLine("What to do?");
Console.WriteLine("1. Encrypt");
Console.WriteLine("2. Decrypt");
Console.WriteLine("0. Exit");
Task task = (Task)Convert.ToInt32(Console.ReadLine());
if (task == Task.Exit)
{
break;
}
Console.WriteLine("Which cipher?");
Console.WriteLine("1. Vigenere");
Console.WriteLine("2. Caesar");
Cipher cipher = (Cipher)Convert.ToInt32(Console.ReadLine()) - 1;
switch (task)
{
case Task.Encrypt:
text = GetText();
key = GetKey();
switch (cipher)
{
case Cipher.Vigenere:
Encode.Encoder encVig = new VigenereEncoder(text, key);
EncodedMessage msgVig = encVig.Create();
Console.WriteLine("Encrypted message: {0}", msgVig.text);
break;
case Cipher.Caesar:
Encode.Encoder encCaesar = new CaesarEncoder(text, key);
EncodedMessage msgCaesar = encCaesar.Create();
Console.WriteLine("Encrypted message: {0}", msgCaesar.text);
break;
}
break;
case Task.Decrypt:
text = GetText();
key = GetKey();
switch (cipher)
{
case Cipher.Vigenere:
Decode.Decoder decVig = new VigenereDecoder(text, key);
DecodedMessage msgVig = decVig.Create();
Console.WriteLine("Decrypted message: {0}", msgVig.text);
break;
case Cipher.Caesar:
Decode.Decoder decCaesar = new CaesarDecoder(text, key);
DecodedMessage msgCaesar = decCaesar.Create();
Console.WriteLine("Decrypted message: {0}", msgCaesar.text);
break;
}
break;
}
}
Console.ReadKey();
}
