public void EnigmaMachine_ShouldDecodeWord_WithRotors123()
{
// Arrange
var enigmaMachine = new EnigmaMachine();
enigmaMachine.ChooseRotors(RotorNumber.Rotor1, RotorNumber.Rotor2, RotorNumber.Rotor3);
enigmaMachine.SetRotorDials('a', 'a', 'z');
enigmaMachine.SetPlugboardPair('h', 's');
enigmaMachine.SetPlugboardPair('a', 'e');
enigmaMachine.SetPlugboardPair('d', 'j');
enigmaMachine.SetPlugboardPair('p', 'q');
enigmaMachine.SetPlugboardPair('g', 'm');
enigmaMachine.SetPlugboardPair('b', 'c');
enigmaMachine.SetPlugboardPair('f', 'i');
enigmaMachine.SetPlugboardPair('k', 'n');
enigmaMachine.SetPlugboardPair('l', 'o');
enigmaMachine.SetPlugboardPair('r', 't');
// Act
string encodedMessage = enigmaMachine.Encode("hello");
// Assert
Assert.AreEqual("ocfkj", encodedMessage);
}
public HttpResponseMessage Encrypt([FromBody] EnigmaMachineDto enigmaMachineDto, [FromUri] bool leaveWhiteSpace)
{
HttpResponseMessage response;
EnigmaMachine enigmaMachine;
try
{
enigmaMachine = new EnigmaMachine();
enigmaMachine.SetPlugboard(enigmaMachineDto.Plugboard.Wiring);
enigmaMachine.ChooseRotors(
(RotorNumber)enigmaMachineDto.Rotor1.RotorNum,
(RotorNumber)enigmaMachineDto.Rotor2.RotorNum,
(RotorNumber)enigmaMachineDto.Rotor3.RotorNum);
enigmaMachine.SetRotorDials(
enigmaMachineDto.Rotor1.InitialDialSetting,
enigmaMachineDto.Rotor2.InitialDialSetting,
enigmaMachineDto.Rotor3.InitialDialSetting);
enigmaMachine.LeaveWhiteSpace(leaveWhiteSpace);
string encodedMessage = enigmaMachine.Encode(enigmaMachineDto.Text);
response = Request.CreateResponse(HttpStatusCode.OK, encodedMessage);
}
catch (Exception ex)
{
response = Request.CreateErrorResponse(HttpStatusCode.InternalServerError, ex);
}
return(response);
}
public void TestInitialize()
{
enigmaMachine = new EnigmaMachine();
enigmaMachine.ChooseRotors(RotorNumber.Rotor1, RotorNumber.Rotor2, RotorNumber.Rotor3);
enigmaMachine.SetPlugboardPair('h', 's');
enigmaMachine.SetPlugboardPair('a', 'e');
enigmaMachine.SetPlugboardPair('d', 'j');
enigmaMachine.SetPlugboardPair('p', 'q');
enigmaMachine.SetPlugboardPair('g', 'm');
enigmaMachine.SetRotorDials('a', 'a', 'z');
}
public void EnigmaMachine_ShouldDecodeWordWithSpaces_WithRotors312()
{
// Arrange
var enigmaMachine = new EnigmaMachine();
enigmaMachine.ChooseRotors(RotorNumber.Rotor3, RotorNumber.Rotor1, RotorNumber.Rotor2);
enigmaMachine.SetRotorDials('g', 'j', 'n');
enigmaMachine.SetPlugboard(plugboardWiring);
string plainText = "forbearance";
// Act
string encodedMessage = enigmaMachine.Encode(plainText);
// Assert
enigmaMachine.SetRotorDials('g', 'j', 'n');
Assert.AreEqual("jiekfqfgkxz", encodedMessage);
Assert.AreEqual(plainText, enigmaMachine.Encode(encodedMessage));
}
public void EnigmaMachine_ShouldDecodeWordWithSpaces_WithRotors531()
{
// Arrange
var enigmaMachine = new EnigmaMachine();
enigmaMachine.ChooseRotors(RotorNumber.Rotor5, RotorNumber.Rotor3, RotorNumber.Rotor1);
enigmaMachine.SetRotorDials('g', 'j', 'n');
enigmaMachine.SetPlugboard(plugboardWiring);
string plainText = "dalliance chatoyant";
// Act
string encodedMessage = enigmaMachine.Encode(plainText);
// Assert
enigmaMachine.SetRotorDials('g', 'j', 'n');
Assert.AreEqual("jyssqzldhgqubgkoji", encodedMessage);
Assert.AreEqual(plainText.Replace(" ", ""), enigmaMachine.Encode(encodedMessage));
}
public void EnigmaMachine_ShouldDecodeWord_WithRotors531()
{
// Arrange
var enigmaMachine = new EnigmaMachine();
enigmaMachine.ChooseRotors(RotorNumber.Rotor5, RotorNumber.Rotor3, RotorNumber.Rotor1);
enigmaMachine.SetRotorDials('b', 'j', 'n');
enigmaMachine.SetPlugboard(plugboardWiring);
string plainText = "dalliance";
// Act
string encodedMessage = enigmaMachine.Encode(plainText);
// Assert
enigmaMachine.SetRotorDials('b', 'j', 'n');
Assert.AreEqual("iymhgqkat", encodedMessage);
Assert.AreEqual(plainText, enigmaMachine.Encode(encodedMessage));
}
public void EnigmaMachine_ShouldDecodeWord_WithRotors345()
{
// Arrange
var enigmaMachine = new EnigmaMachine();
enigmaMachine.ChooseRotors(RotorNumber.Rotor3, RotorNumber.Rotor4, RotorNumber.Rotor5);
enigmaMachine.SetRotorDials('b', 'c', 'd');
enigmaMachine.SetPlugboard(plugboardWiring);
string plainText = "cynosure";
// Act
string encodedMessage = enigmaMachine.Encode(plainText);
// Assert
enigmaMachine.SetRotorDials('b', 'c', 'd');
Assert.AreEqual("oswemtyt", encodedMessage);
Assert.AreEqual(plainText, enigmaMachine.Encode(encodedMessage));
}
public void EnigmaMachine_ShouldDecodeWord_WithRotors234()
{
// Arrange
var enigmaMachine = new EnigmaMachine();
enigmaMachine.ChooseRotors(RotorNumber.Rotor2, RotorNumber.Rotor3, RotorNumber.Rotor4);
enigmaMachine.SetRotorDials('a', 'b', 'c');
enigmaMachine.SetPlugboard(plugboardWiring);
string plainText = "bungalow";
// Act
string encodedMessage = enigmaMachine.Encode(plainText);
// Assert
enigmaMachine.SetRotorDials('a', 'b', 'c');
Assert.AreEqual("noavbjhg", encodedMessage);
Assert.AreEqual(plainText, enigmaMachine.Encode(encodedMessage));
}
public void EnigmaMachine_ShouldDecodeWordWithCapsAndSpaces_WithRotors123()
{
// Arrange
var enigmaMachine = new EnigmaMachine();
enigmaMachine.ChooseRotors(RotorNumber.Rotor1, RotorNumber.Rotor2, RotorNumber.Rotor3);
enigmaMachine.SetRotorDials('a', 'a', 'z');
enigmaMachine.SetPlugboard(plugboardWiring);
string plainText = "They call Me Mr Tibbs";
// Act
string encodedMessage = enigmaMachine.Encode(plainText);
// Assert
enigmaMachine.SetRotorDials('a', 'a', 'z');
Assert.AreEqual("gdjwbtngooygonlym", encodedMessage);
Assert.AreEqual(plainText.ToLower().Replace(" ", ""), enigmaMachine.Encode(encodedMessage));
}
public HttpResponseMessage ChooseRotors([FromUri] string rotors)
{
HttpResponseMessage message;
try
{
if (rotors.Length != 3)
{
throw new Exception("must indicate 3 rotors");
}
if (!Int32.TryParse(rotors.Substring(0, 1), out int firstRotor))
{
throw new Exception("Cound not parse first rotor");
}
if (!Int32.TryParse(rotors.Substring(1, 1), out int secondRotor))
{
throw new Exception("Cound not parse second rotor");
}
if (!Int32.TryParse(rotors.Substring(2, 1), out int thirdRotor))
{
throw new Exception("Cound not parse third rotor");
}
staticEnigmaMachine.ChooseRotors((RotorNumber)firstRotor, (RotorNumber)secondRotor, (RotorNumber)thirdRotor);
message = Request.CreateResponse(HttpStatusCode.OK);
}
catch (Exception ex)
{
message = Request.CreateErrorResponse(HttpStatusCode.BadRequest, ex.Message);
}
return(message);
}
