PypherStream/testPypherStream.py

#Python/PypherStream/testPypherStream.py
#Matthew Ellison
# Created: 03-31-19
#Modified: 03-31-19
#This is a script to test the PypherStream project
#It starts by testing the individual classes then the larger program


from Stopwatch import Stopwatch
from Caesar import Caesar
from Playfair import Playfair


#Test the Caesar cipher
def caesarTest():
	cipher = Caesar()
	passed = True
	inputString = ""	#Holds the string to be input into the cipher
	outputString = ""	#Holds the string that the cipher is expected to output
	cipherString = ""	#Holds the string the the cipher actually output

	#Test all lowercase
	inputString = "abcdefghijklmnopqrstuvwxyz"
	outputString = "defghijklmnopqrstuvwxyzabc"
	#Try the encoding
	cipherString = cipher.encode(3, inputString)
	if(cipherString != outputString):
		print("Caesar failed the first encoding test")
		passed = False
	#Try it decoding
	cipherString = cipher.decode(3, outputString)
	if(cipherString != inputString):
		print("Caesar failed the first decoding test")
		passed = False

	#Test all uppercase
	inputString = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
	outputString = "XYZABCDEFGHIJKLMNOPQRSTUVW"
	#Try encoding
	cipherString = cipher.encode(-3, inputString)
	if(cipherString != outputString):
		print("Caesar failed the second encoding test")
		passed = False
	#Try decoding
	cipherString = cipher.decode(-3, outputString)
	if(cipherString != inputString):
		print("Caesar failed the second decoding test")
		passed = False

	#Test both cases
	inputString = "AbCdEfGhIjKlMnOpQrStUvWxYz"
	outputString = "DeFgHiJkLmNoPqRsTuVwXyZaBc"
	#Try encoding
	cipherString = cipher.encode(3, inputString)
	if(cipherString != outputString):
		print("Caesar failed the thrid encoding test")
		passed = False
	#Try decoding
	cipherString = cipher.decode(3, outputString)
	if(cipherString != inputString):
		print("Caesar failed the third decoding test")
		passed = False

	#Punctuation
	inputString = "abc,def. rst; wxyz"
	outputString = "def,ghi. uvw; zabc"
	#Try encoding
	cipherString = cipher.encode(3, inputString)
	if(cipherString != outputString):
		print("Caesar failed the fourth encoding test")
		passed = False
	#Try decoding
	cipherString = cipher.decode(3, outputString)
	if(cipherString != inputString):
		print("Caesar failed the fourth decoding test")
		passed = False

	#Something different
	inputString = "you"
	outputString = "iye"
	#Try encoding
	cipherString = cipher.encode(10, inputString)
	if(cipherString != outputString):
		print("Caesar failed the fifth encoding test")
		passed = False
	#Try decoding
	cipherString = cipher.decode(10, outputString)
	if(cipherString != inputString):
		print("Caesar failed the fifth decoding test")
		passed = False

	#Print a message if there were no errors
	if(passed):
		print("Caesar passed all tests")

#Test the Playfair cipher
def playfairTest():
	#Setup the variables
	passed = True	#Holds whether all tests have been passed
	keyword = ""	#Holds the keyword for the cipher
	inputString = ""	#Holds the string that will be encoded
	outputString = ""	#Holds the string that will be decoded
	cipherString = ""	#Holds the string that is returned from the cipher
	cipher = Playfair()	#The cipher itself

	#Test from wikipedia
	keyword = "Playfair Example"
	inputString = "Hide the gold in the tree stump"
	outputString = "BMODZBXDNABEKUDMUIXMMOUVIF"
	#Try encoding
	cipherString = cipher.encode(keyword, inputString)
	if(cipherString != outputString):
		print("Playfair failed the first encoding test")
		passed = False
	inputString = cipher.getInputString()	#This makes sure input is a valid input for comparison later
	#Try decoding
	cipherString = cipher.decode(keyword, outputString)
	if(cipherString != inputString):
		print("Playfair failed the first decoding test")
		passed = False

	#Slight alteration to test from wikipedia
	keyword = "Playfair Example"
	inputString = "Hide the gold in the tree stum"
	outputString = "BMODZBXDNABEKUDMUIXMMOUVIM"
	#Try encoding
	cipherString = cipher.encode(keyword, inputString)
	if(cipherString != outputString):
		print("Playfair failed the second encoding test")
		passed = False
	inputString = cipher.getInputString()	#This makes sure input is a valid input for comparison later
	#Try decoding
	cipherString = cipher.decode(keyword, outputString)
	if(cipherString != inputString):
		print("Playfair failed the second decoding test")
		passed = False

	#Print a message if there were no errors
	if(passed):
		print("Playfair passed all tests")

#Run all the appropriate tests in the right order
if __name__ == "__main__":
	#Create a timer to check the time of the tests
	timer = Stopwatch()

	#Test the Caesar cipher
	timer.start()
	caesarTest()
	timer.stop()
	print("It took " + timer.getString() + " to run this test\n")

	#Test the Playfair cipher
	timer.start()
	playfairTest()
	timer.stop()
	print("It took " + timer.getString() + " to run this test")


""" Results:
Caesar passed all tests
It took 550.300 microseconds to run this test
"""