1. ascii.py
2. ascii_table.py
3. binaryToDecimal.py
4. binaryToDecimal_starter.py
5. test.py

# Conversion of a text message into ASCII
# by Sara Sprenkle

print()
print("This program converts a textual message into a sequence")
print("of numbers representing the ASCII encoding of the message.")
print()

message = input("Enter the message to encode: ")

print()
print("Here are the ASCII codes for '" + message + "':")

for ch in message:
    print(ord(ch), end=" ")

print()

# Create a table of numbers (ASCII) and their character equivalent
# by Sara Sprenkle

print("This program prints out part of the ASCII Table")

print("DEC CHAR")
print("-"*3, "-"*4)

for i in range(33, 127):
    print("{:3d} {:4s}".format(i, chr(i)))
    

# Converts a binary number into a decimal.
# Iterates over the exponents (i.e., from right to left).
# By CSCI111

import test

def main():
    print("This program converts a binary number into a decimal number.")
    
    binaryNum = input("What is your binary number? ")
    decVal = binaryToDecimal(binaryNum)
    print("The decimal value of", binaryNum, "is", decVal)


def testBinaryToDecimal():
    """
    tests the binaryToDecimal function
    """
    test.testEqual( binaryToDecimal("0"), 0 )
    test.testEqual( binaryToDecimal("1"), 1 )
    test.testEqual( binaryToDecimal("10"), 2 )
    test.testEqual( binaryToDecimal("1000"), 8 )
    test.testEqual( binaryToDecimal("1101"), 13 )
    test.testEqual( binaryToDecimal("1111"), 15 )
    test.testEqual( binaryToDecimal("10110"), 22 )

    
def binaryToDecimal(binaryStr):
    """
    Given the binary number as a string of 0s and 1s,
    return the binary number as a decimal.
    """
    decValue = 0
    exponent = 0
    
    for pos in range(len(binaryStr)-1, -1, -1):
        bit = int(binaryStr[pos])
        value = bit * 2 ** exponent
        decValue += value
        exponent += 1
    return decValue

testBinaryToDecimal()

# Converts a binary number into a decimal.
# Iterates over the exponents.
# Exercise: implement two ways:
#   --> iterate over the binary string from the last character to the first
#   --> iterate over the binary string from the first character to the last
# By CSCI111

import test

def main():
    print("This program converts a binary number into a decimal number.")
    


def testBinaryToDecimal():
    """
    tests the binaryToDecimal function
    """
    test.testEqual( binaryToDecimal(), )
    
    
def binaryToDecimal(binary):
    """
    """

testBinaryToDecimal()

# From How to Think Like a Computer Scientist textbook

def testEqual(actual, expected):
    if type(expected) == type(1):
        # they're integers, so check if exactly the same
        if actual == expected:
            print('Pass')
            return True
    elif type(expected) == type(1.11):
        # a float is expected, so just check if it's very close, to allow for
        # rounding errors
        if abs(actual-expected) < 0.00001:
            print('Pass')
            return True
    else:
        # check if they are equal
        if actual == expected:
            print('Pass')
            return True
    print('Test Failed: expected ' + str(expected) + ' but got ' + str(actual))
    return False