Doctesting functions that accept and display user input - Python (tearing my hair off)

Question

I am currently writing a small application in Python (3.1), and, as a good little boy, I am involved in the testing process. However, I came across a method that I cannot verify. It contains input(), because of this, I'm not quite sure what to put in the "pending" part of the document.

Sample code to illustrate my problem:

"""
>>> getFiveNums()
Howdy. Please enter five numbers, hit <enter> after each one
Please type in a number:
Please type in a number:
Please type in a number:
Please type in a number:
Please type in a number:
"""

import doctest

numbers = list()

# stores 5 user-entered numbers (strings, for now) in a list
def getFiveNums():
    print("Howdy. Please enter five numbers, hit <enter> after each one")
    for i in range(5):
        newNum = input("Please type in a number:")
        numbers.append(newNum)
    print("Here are your numbers: ", numbers)

if __name__ == "__main__":
    doctest.testmod(verbose=True)

When you start doctests, the program stops execution immediately after printing the "Expected" section, waits for me to enter five numbers one after the other (without prompts), and then continues. As below:

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Answer 1

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:

import unittest

# stores 5 user-entered numbers (strings, for now) in a list
def getFiveNums():
    numbers = []
    print "Howdy. Please enter five numbers, hit <enter> after each one"
    for i in range(5):
        newNum = input("Please type in a number:")
        numbers.append(newNum)
    return numbers

def mock_input(dummy_prompt):
    return 1

class TestGetFiveNums(unittest.TestCase):
    def setUp(self):
        self.saved_input = __builtins__.input
        __builtins__.input = mock_input

    def tearDown(self):
        __builtins__.input = self.saved_input

    def testGetFiveNums(self):
        printed_lines = getFiveNums()
        self.assertEquals(printed_lines, [1, 1, 1, 1, 1])

if __name__ == "__main__":
    unittest.main()

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Answer 2

:

def getFiveNums(input_func=input):
    print("Howdy. Please enter five numbers, hit <enter> after each one")
    for i in range(5):
        newNum = input_func("Please type in a number:")
        numbers.append(newNum)
    print("Here are your numbers: ", numbers)

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def fake_input(str):
    print(str)
    return 3

doctest getFiveNums(fake_input).

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Answer 3

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"""
>>> get_five_nums(testing=True)
Howdy. Please enter five numbers, hit <enter> after each one.
Please type in a number: 1
Please type in a number: 1
Please type in a number: 1
Please type in a number: 1
Please type in a number: 1
Here is a list of the numbers you entered:  [1, 1, 1, 1, 1]
>>>
"""

import doctest

numbers = []

def get_five_nums(testing=False):
    """Stores 5 user-entered numbers (strings, for now) in a list."""

    print("Howdy. Please enter five numbers, hit <enter> after each one.")
    for i in range(5):
        new_num = int(input("Please type in a number: "))
        if testing:
            print(new_num)
        numbers.append(new_num)
    print("Here is a list of the numbers you entered: ", numbers)


if __name__ == "__main__":
    doctest.testmod(verbose=True)  

foo.py. input.txt.

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$python foo.py < input.txt

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: get_five_nums(). get_five_nums (testing = True).

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Answer 4

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def capitalize_name():
    """
    >>> import io, sys ; sys.stdin = io.StringIO("Bob")  # input
    >>> capitalize_name()
    What is your name?  Your name is BOB!
    """
    name = input('What is your name?  ')
    print('Your name is ' + name.upper() + '!')

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# stores 5 user-entered numbers (strings, for now) in a list
def getFiveNums():
    """
    >>> import io, sys ; sys.stdin = io.StringIO(chr(10).join(['1','2','3','4','5']))  # input
    >>> getFiveNums()
    Howdy. Please enter five numbers, hit <enter> after each one
    Please type in a number:Please type in a number:Please type in a number:Please type in a number:Please type in a number:Here are your numbers:  ['1', '2', '3', '4', '5']
    """
    print("Howdy. Please enter five numbers, hit <enter> after each one")
    numbers = []
    for _ in range(5):
        newNum = input("Please type in a number:")
        numbers.append(newNum)
    print("Here are your numbers: ", numbers)

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