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 DecodedStringIsSame()
{
var message = RandomMessage;
var key = RandomMessage;
var encoded = encoder.Encode(message, key);
var decoded = encoder.Decode(encoded, key);
Assert.AreEqual(message, decoded);
}
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);
}
