exo_cc_lesson_2

[scohard]

-- coding: utf-8 --

"""
Éditeur de Spyder

Ceci est un script temporaire.
"""

import unittest

Given a string and a non-negative int n, return a larger string

that is n copies of the original string.

def string_times(string, n):
return string *n

Given an array of ints, return True if one of the first 4 elements

in the array is a 9. The array length may be less than 4.

def array_front9(nums):
    for int in int [:4]:
        if int ==9:
            return true
return false

Given a string, return the count of the number of times

that a substring length 2 appears in the string and also as

the last 2 chars of the string, so "hixxxhi" yields 1

(we won't count the end substring).

def last2(string):

Write a program that maps a list of words into a list of

integers representing the lengths of the corresponding words.

def length_words(words):
    return map(len, words)

Write fizzBuzz programm

def fizz_buzz(n):
    if n % 15 == 0:
        return 'FizzBuzz'
        if n % 3 == 0:
            return 'Fizz'
        if n % 5 == 0:
            return 'Buzz'
    return n

Write a function that takes a number and returns a list of its digits.

def number2digits(number):
return map(int, list(str(number)))

Write function that translates a text to Pig Latin and back.

English is translated to Pig Latin by taking the first letter of every word,

moving it to the end of the word and adding 'ay'

def pig_latin(text):
pig = ''
words = text.split()
for word in words:
pig += word[1:] + word[0] + 'ay' + ' '
return pig[:-1].capitalize()

Here's our "unit tests".

class Tests(unittest.TestCase):
def test01StringTimes(self):
self.assertEqual(string_times('Hel', 2), 'HelHel')
self.assertEqual(string_times('Toto', 1), 'Toto')
self.assertEqual(string_times('P', 4), 'PPPP')

def test02ArrayFront9(self):
    self.assertEqual(array_front9([1, 2, 9, 3, 4]), True)
    self.assertEqual(array_front9([1, 2, 3, 9, 4]), True)
    self.assertEqual(array_front9([1, 2, 3, 4, 9]), False)
    self.assertEqual(array_front9([1, 2, 3, 4, 5]), False)

def test03Last2(self):
    self.assertEqual(last2('hixxhi'), 1)
    self.assertEqual(last2('xaxxaxaxx'), 1)
    self.assertEqual(last2('axxxaaxx'), 2)

def test04LengthWord(self):
    self.assertEqual(length_words(['hello', 'toto']), [5, 4])
    self.assertEqual(length_words(['s', 'ss', '59fk', 'flkj3']),
                     [1, 2, 4, 5])

def test05FizzBuzz(self):
    self.assertEqual(fizz_buzz(3), "Fizz")
    self.assertEqual(fizz_buzz(4), 4)
    self.assertEqual(fizz_buzz(30), "FizzBuzz")
    self.assertEqual(fizz_buzz(10), "Buzz")

def test06Number2Digits(self):
    self.assertEqual(number2digits(8849), [8, 8, 4, 9])
    self.assertEqual(number2digits(4985098), [4, 9, 8, 5, 0, 9, 8])

def test07PigLatin(self):
    self.assertEqual(pig_latin("The quick brown fox"),
                     "Hetay uickqay rownbay oxfay")

def main():
unittest.main()

if name == 'main':
main()