def test_to_letter(self):
expected = 'A'
actual = alphabet.to_letter(0)
self.assertEquals(expected, actual)
expected = 'M'
actual = alphabet.to_letter(12)
self.assertEquals(expected, actual)
expected = 'Z'
actual = alphabet.to_letter(25)
self.assertEquals(expected, actual)
def decipher(self, encipheredLetter):
# get position of letter taking into account the current position of the rotor
decipheredLetterIndex = self.getPositionOfLetter(encipheredLetter)
decipheredLetter = alphabet.to_letter(decipheredLetterIndex)
# WriteOutput(encipheredLetter)
# WriteOutput(decipheredLetter)
# re-adjust output for any offset
if self.getCurrentPosition() > 0:
decipheredLetter = alphabet.go_backwards(decipheredLetter, self.getCurrentPosition())
return decipheredLetter
def encipher(self, clearCharacter):
letterIndex = alphabet.to_letter_index(clearCharacter)
# encipher the character taking into account the current position of the rotor
encipheredCharacter = self.getLetterAtPosition(letterIndex)
print("\renciphering: " + clearCharacter)
print("\r" + self.wiring)
print("enciphered as: " + encipheredCharacter + "\r")
# take care of the offset
if self.getCurrentPosition() > 0:
letterIndex = alphabet.to_letter_index(encipheredCharacter)
letterIndex = alphabet.go_backwards(letterIndex, self.getCurrentPosition())
encipheredCharacter = alphabet.to_letter(letterIndex)
print("\r offset to :" + encipheredCharacter)
return encipheredCharacter
def getIndicator(self):
currentLetter = alphabet.to_letter(self.getCurrentPosition())
return alphabet.go_forwards(currentLetter, self.getRingSetting()).upper()
def getWiring(self):
return self.wiring
