# THIS CODE IS SUPPOSED TO:
# Function check_phone checks whether a string entered by the user
# is a valid phone number or not. A valid phone number must have
# the following characteristics:
#
#  - It must start with a three digit positive integer between parentheses,
#    that doesn't start with preceding zeroes.
#  - The area code is followed by either a space or a dash
#  - After the area code, a non-negative three digit number will be read in
#    (all zeroes here is okay).
#  - A single space will follow those three digits, followed by four more digits.
#  - Finally, the phone number will end with an optional extension.
#    This will either start with x or X,
#    followed by a single space, followed by any four digits.
#
# Write test cases to find an unknown bug in the function.
#
# Hint: Break the input into pieces (consider the given characteristics).
# For each piece, what would "valid" (or "invalid") piece look like?
#
# Do not look at the code.
# You only need a specification to create test cases.
#


import re

def check_phone(phone):
    result = False
    
    regex = re.compile(r"\([0-9]{3}\)[- ]?[0-9]{3} [0-9]{4}([xX] [0-9]{4})?")

    temp = regex.search(phone)
    if temp != None and len(temp.group(0)) == len(phone):
        result = True
  
    return result



actualResults = []
expectedResults = []

#WRITE YOUR TESTS BELOW FOLLOWING THE FORMAT

actualResults.append(check_phone("(333) 333 4444x 5555"))
expectedResults.append(True)

actualResults.append(check_phone("(333) 333 4444x5555"))
expectedResults.append(False)

actualResults.append(check_phone("(333) 333 4444"))
expectedResults.append(True)










#===================================#

'''
ctualResults.append(check_phone("(333) 333 4444X 5555"))
expectedResults.append(True)

actualResults.append(check_phone("(033) 333 4444X 5555"))     # find bug
expectedResults.append(False)

actualResults.append(check_phone("(33) 333 4444x 5555"))
expectedResults.append(False)

actualResults.append(check_phone("333) 333 4444x 5555"))
expectedResults.append(False)

actualResults.append(check_phone("(333 333 4444x 5555"))
expectedResults.append(False)

actualResults.append(check_phone("(333)-333 4444x 5555"))
expectedResults.append(True)

actualResults.append(check_phone("(333).333 4444x 5555"))  
expectedResults.append(False)   

actualResults.append(check_phone("(33) -33 4444x 5555"))
expectedResults.append(False)

actualResults.append(check_phone("(33) 33 4444x 5555"))
expectedResults.append(False)

actualResults.append(check_phone("(-333) 3334444x 5555"))
expectedResults.append(False)

actualResults.append(check_phone("(33) 333  4444x 5555"))
expectedResults.append(False)

'''



#===================================#

ctr = 0
found = False
while ctr < len(actualResults):
    actual = actualResults[ctr]
    expected = expectedResults[ctr]
    print(str(expected) + " : " + str(actual))
    if (actual != expected):
        found = True
    ctr = ctr + 1
    
if (found == True):
    print("Your test suite found the bug!!")
else:
    print("Try writing more tests, you didn't find the bug yet.")




'''
correct code

r"\([1-9][0-9]{2}\)[- ]?[0-9]{3} [0-9]{4}([xX] [0-9]{4})?"
'''