public void TestLetterMappingsWithRotorOffsetSettings()
{
var socket = new RotorSocket(Rotor.Create("I", 'B'));
Assert.AreEqual('K', socket.GetMappedLetter('A'));
Assert.AreEqual('A', socket.GetMappedLetter('K', LetterMapper.MappingDirection.LeftToRight));
socket.Advance();
Assert.AreEqual('E', socket.GetMappedLetter('A'));
Assert.AreEqual('A', socket.GetMappedLetter('E', LetterMapper.MappingDirection.LeftToRight));
}
public void TestLetterMappings()
{
var socket = new RotorSocket(Rotor.Create("I"));
Assert.AreEqual('E', socket.GetMappedLetter('A'));
Assert.AreEqual('A', socket.GetMappedLetter('E', LetterMapper.MappingDirection.LeftToRight));
//If for example rotor I is in the B-position, an A enters at the letter B
//which is wired to the K. Because of the offset this K enters the next rotor in the J position.
socket.Advance();
Assert.AreEqual('J', socket.GetMappedLetter('A'));
Assert.AreEqual('A', socket.GetMappedLetter('J', LetterMapper.MappingDirection.LeftToRight));
}
private char GetCypherLetter(char key)
{
char mappedLetter = _plugboard.GetMappedLetter(key);
mappedLetter = _fastRotor.GetMappedLetter(mappedLetter);
mappedLetter = _middleRotor.GetMappedLetter(mappedLetter);
mappedLetter = _slowRotor.GetMappedLetter(mappedLetter);
mappedLetter = _reflector.GetMappedLetter(mappedLetter);
mappedLetter = _slowRotor.GetMappedLetter(mappedLetter, MappingDirection.LeftToRight);
mappedLetter = _middleRotor.GetMappedLetter(mappedLetter, MappingDirection.LeftToRight);
mappedLetter = _fastRotor.GetMappedLetter(mappedLetter, MappingDirection.LeftToRight);
mappedLetter = _plugboard.GetMappedLetter(mappedLetter, MappingDirection.LeftToRight);
return(mappedLetter);
}