def test_random_result():
"""
Tests whether the function returns a result that is different
from the input.
Examples/Arguments/Returns/Raises:
None: This is a test function
Test fails: When the result is the same string as the input.
"""
text = 'Hello I am Alina'
result = scramble_without_firstlast(text)
# in case the function randomly created a result that is the same as the
# text, let's scramble again:
if result == text:
result = scramble_without_firstlast(text)
assert result != text
text_2 = 87908098
result_2 = scramble_without_firstlast(text_2)
if result_2 == text_2:
result_2 = scramble_without_firstlast(text_2)
# change string result to integer to compare with integer input:
result_2 = int(result_2)
assert result_2 != text_2
def test_firstlast_characters():
"""
Tests whether the first and last characters of each word are kept in
place, as intended.
Examples/Arguments/Returns/Raises:
None: This is a test function
Test fails: When the first characters in the result are not the same as
in the input, as well as when the last characters in the result are not
the same as in the input.
"""
text = 'Hello I am Alina'
words_text = text.split()
for word in words_text:
# for the first letters:
text_first = []
text_first.append(word[0])
# for the last letters:
text_last = []
text_last.append(word[-1])
result = scramble_without_firstlast(text)
words_result = result.split()
for word in words_result:
# for the first letters:
result_first = []
result_first.append(word[0])
# for the last letters:
result_last = []
result_last.append(word[-1])
assert text_first == result_first
assert text_last == result_last
def test_punctuation():
"""
Tests whether punctuation is kept in place, as intended.
Examples/Arguments/Returns/Raises:
None: This is a test function
Test fails: When the indices of the punctuation in the result are not the
same as in the input (e.g., when the function mistakingly shuffled
the punctuation around)
"""
text = 'Hello. I am: Alina'
import string
punctuation = tuple(string.punctuation)
# finding out the positions of the punctuations in the input text:
indices_text = []
for letter in text:
if letter in punctuation:
#find me the index of the letter and add it to my list:
position_letter = text.index(letter)
indices_text.append(position_letter)
else:
pass
# scrambling text and finding out positions in scrambled text:
result = scramble_without_firstlast(text)
indices_result = []
for letter in result:
if letter in punctuation:
#find me the index of the letter and add it to my list:
position_letter = result.index(letter)
indices_result.append(position_letter)
else:
pass
assert indices_text == indices_result
def test_errors():
"""
Tests whether the errors are correctly raised.
Examples/Arguments/Returns/Raises:
None: This is a test function
Test fails: When the function doesn't raise errors in respose to an input
of type list, as well as when it doesn't raise errors in response to
an input with lenght = 3
"""
import pytest
text = 'Hello I am Alina'
# splitting the text creates a list; the function should raise a TypeError
# when it gets something that's not a str or int, e.g. a list as an input
text = text.split()
with pytest.raises(TypeError):
scramble_without_firstlast(text)
text_2 = 'Hel'
with pytest.raises(ValueError):
scramble_without_firstlast(text_2)
@author: Alina Podschun
A short script to demonstrate the functions defined in the module
scrambled_text.py on basis of user-generated input.
"""
from scrambled import scramble_without_firstlast
from scrambled import scramble_all
from scrambled import scramble_shortwords
from scrambled import random_uppercase
example = input('Please enter a sentence or some words of your choice.')
short = input('How many letters do you think long words have at the minimum? '
'Please enter a whole number.')
short = int(short)
print('\n')
print('This is your sentence:', example)
print('\n')
print('Function scramble_all scrambles every word:', scramble_all(example))
print('\n')
print(
'Function scramble_without_firstlast instead leaves the first and last '
'letter of each word in place:', scramble_without_firstlast(example))
print('\n')
print('Function scramble_shortwords scrambles only short words: ',
scramble_shortwords(example, short))
print('\n')
print('Function random_uppercase creates random capitals in the words: ',
random_uppercase(example))