private static NestedEnigmaMachine BuildEnigma(char[] ringSettings = null)
{
if (ringSettings == null)
{
ringSettings = new char[] { 'A', 'A', 'A' };
}
NestedRotor rotorI = NestedEnigmaMachineTestSupport.CreateRotorI();
rotorI.SetRingSetting(ringSettings[0]);
NestedRotor rotorII = NestedEnigmaMachineTestSupport.CreateRotorII();
rotorII.SetRingSetting(ringSettings[1]);
NestedRotor rotorIII = NestedEnigmaMachineTestSupport.CreateRotorIII();
rotorIII.SetRingSetting(ringSettings[2]);
EnigmaReflector reflectorB = NestedEnigmaMachineTestSupport.CreateBReflector();
NestedEnigmaMachine enigma = new NestedEnigmaMachine();
EnigmaRotor[] rotors = new EnigmaRotor[4];
rotors[0] = reflectorB;
rotors[1] = rotorI;
rotors[2] = rotorII;
rotors[3] = rotorIII;
enigma.SetRotors(rotors);
return(enigma);
}
public void RotorsAdvanceAlongCryptString()
{
String expected = "BDZGO";
NestedEnigmaMachine enigma = BuildEnigma();
enigma.SetRingSetting("AAA");
String actual = enigma.Crypt("AAAAA");
Assert.AreEqual(expected, actual);
}
public void GetSetRotorSettings()
{
string expected = "ABC";
NestedEnigmaMachine enigma = BuildEnigma();
enigma.SetRotorOffset(expected);
string actual = enigma.GetRotorSettings();
Assert.AreEqual(expected, actual);
}
public void SteckersAlterOutput()
{
String expected = "Y";
NestedEnigmaMachine enigma = BuildEnigma();
enigma.SetRingSetting("AAA");
enigma.Setcker('B', 'Y');
String actual = enigma.Crypt("A");
Assert.AreEqual(expected, actual);
}
public void RotorsAdvanceAlongCryptString_2()
{
String expected = "DDWCRLRHLZBMHDGCMYOKMIZWNHUACPCYYGWQSN";
//NestedRotor rotorI = CreateRotorI();
//NestedRotor rotorII = CreateRotorII();
//NestedRotor rotorIII = CreateRotorIII();
//Reflector reflectorB = CreateBReflector();
//EnigmaMachine enigma = new EnigmaMachine(rotorI, rotorII, rotorIII, reflectorB);
NestedEnigmaMachine enigma = BuildEnigma();
enigma.SetRingSetting("AAA");
String actual = enigma.Crypt("MAYBEINVADINGFRANCEWASNTSUCHAGREATIDEA");
Assert.AreEqual(expected, actual);
}
public void RotorsAdvanceAlongCryptString_WithRingSetting()
{
String expected = "EWTYX";
//NestedRotor I = CreateRotorI();
//I.SetRingSetting('B');
//NestedRotor II = CreateRotorII();
//II.SetRingSetting('B');
//NestedRotor III = CreateRotorIII();
//III.SetRingSetting('B');
//Reflector rB = CreateBReflector();
//EnigmaMachine enigma = new EnigmaMachine(I, II, III, rB);
NestedEnigmaMachine enigma = BuildEnigma(new char[] { 'B', 'B', 'B' });
enigma.SetRingSetting("AAA");
String actual = enigma.Crypt("AAAAA");
Assert.AreEqual(expected, actual);
}
public void EnigmaTakesOffsetKey()
{
NestedEnigmaMachine enigma = BuildEnigma();
enigma.SetRingSetting("AAA");
}
public void CanGetRotorSettings()
{
NestedEnigmaMachine enigma = BuildEnigma();
enigma.GetRotorSettings();
}
public void CanCreateEnigmaMachine()
{
NestedEnigmaMachine enigma = new NestedEnigmaMachine();
}