#################################################
# collab3.py
#
# Your name:
# Your andrew id:
#################################################

import cs112_m20_day3_linter
import string, random

#################################################
# Helper functions
#################################################

def almostEqual(d1, d2, epsilon=10**-7):
    # note: use math.isclose() outside 15-112 with Python version 3.5 or later
    return (abs(d2 - d1) < epsilon)

import decimal
def roundHalfUp(d):
    # Round to nearest with ties going away from zero.
    rounding = decimal.ROUND_HALF_UP
    # See other rounding options here:
    # https://docs.python.org/3/library/decimal.html#rounding-modes
    return int(decimal.Decimal(d).to_integral_value(rounding=rounding))

#################################################
# Functions for you to write
#################################################

def mostFrequentLetters(s):
    return 42

def bestStudentAndAvg(gradebook):
    return 42

#################################################
# Test Functions
################################################

def testMostFrequentLetters():
    print("Testing mostFrequentLetters()...", end="")

    s = "We attack at Dawn"
    result = "atwcdekn"
    assert(mostFrequentLetters(s) == result)

    s = "Note that digits, punctuation, and whitespace are not letters!"
    result = "teanioscdhpruglw"
    assert(mostFrequentLetters(s) == result)

    s = ""
    result = ""
    assert(mostFrequentLetters(s) == result)

    print("Passed!")

def testBestStudentAndAvg():
    print("Testing bestStudentAndAvg()...", end="")
    gradebook = """
# ignore  blank lines and lines starting  with  #'s
wilma,91,93
fred,80,85,90,95,100
betty,88
"""
    assert(bestStudentAndAvg(gradebook) ==  "wilma:92")
    gradebook   =   """
#   ignore  blank   lines   and lines   starting    with    #'s
wilma,93,95

fred,80,85,90,95,100
betty,88
"""
    assert(bestStudentAndAvg(gradebook) ==  "wilma:94")
    gradebook = "fred,0"
    assert(bestStudentAndAvg(gradebook) ==  "fred:0")
    gradebook = "fred,-1\nwilma,-2"
    assert(bestStudentAndAvg(gradebook) ==  "fred:-1")
    gradebook = "fred,100"
    assert(bestStudentAndAvg(gradebook) ==  "fred:100")
    gradebook = "fred,100,110"
    assert(bestStudentAndAvg(gradebook) ==  "fred:105")
    gradebook = "fred,49\nwilma" + ",50"*50
    assert(bestStudentAndAvg(gradebook) ==  "wilma:50")
    print("Passed!")

#################################################
# hw3 Main
################################################

def testAll():
    testMostFrequentLetters()
    testBestStudentAndAvg()

def main():
    cs112_m20_day3_linter.lint()
    testAll()

if __name__ == '__main__':
    main()