Question

The code:

def isPalindrome(text):
    """
        >>> isPalindrome("alula")
        True
        >>> isPalindrome("love")
        False
        >>> isPalindrome("Madam")
        True
        >>> isPalindrome(12.5)
        False
        >>> isPalindrome(12.21)
        False
        >>> isPalindrome("Cigar? Toss it in a can.! It is so tragic.")
        True
        >>> isPalindrome("travel.. a town in Alaska")
        False
    """
    # --- YOU CODE STARTS HERE
    if type(text) is not str:
        return False
    l = len(text) - 1
    i = 0
    while i < l:
        if text[i] in string.punctuation or text[i] == ' ':
            i += 1
        elif text[l] in string.punctuation or text[l] == ' ':
            l -= 1
        elif text[i].upper() != text[l].upper():
            return False
        else:
            i += 1
            l -= 1
    return True

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Write the test.py script to perform your testing for your isPalindrome function using the unittest module and prove that it works correctly. Remember to be as descriptive as possible and write as many cases as necessary (check the Hands On video for examples of a description). Unittest is intended to run test cases in bulk, so it should contain enough test cases to prove your code works. Your script should contain at least 6 cases with 3 tests per case. Examples of cases are testing words, lowercase, uppercase, mixed letters, sentences, strings with punctuation, spaces, input that is not a string, etc. You can discuss, suggest and share possible edge cases on Piazza. Do not include the doctest examples in your unittest file

-------------------------------------------------------------

CODE NEEDED:

import unittest 
from LAB4 import * 


class PalindromeTestCases(unittest.TestCase):
    """Tests for LAB4.py"""












#Do not modify the 2 lines below
if __name__ == '__main__':
   unittest.main(exit=False)

Answer 1

Here is the completed code for this problem. Comments are included, go through it, learn how things work and let me know if you have any doubts or if you need anything to change. If you are satisfied with the solution, please rate the answer. Thanks

#code

import unittest
from LAB4 import *


class PalindromeTestCases(unittest.TestCase):
    """Tests for LAB4.py"""

    def test_single_words(self):
        """testing single words"""
        self.assertTrue(isPalindrome('Hannah'), "'Hannah' should be a palindrome")
        self.assertFalse(isPalindrome('Kevin'), "'Kevin' is not a palindrome")
        self.assertTrue(isPalindrome('P'), "'P' should be a palindrome")

    def test_lower_case(self):
        """testing input in lower case"""
        self.assertTrue(isPalindrome('abcdcba'), "'abcdcba' should be a palindrome")
        self.assertFalse(isPalindrome('python'), "'python' is not a palindrome")
        self.assertTrue(isPalindrome('crazyyzarc'), "'crazyyzarc' should be a palindrome")

    def test_upper_case(self):
        """testing input in upper case"""
        self.assertTrue(isPalindrome('ABCDCBA'), "'ABCDCBA' should be a palindrome")
        self.assertFalse(isPalindrome('PYTHON'), "'PYTHON' is not a palindrome")
        self.assertTrue(isPalindrome('CRAZYYZARC'), "'CRAZYYZARC' should be a palindrome")

    def test_mixed_case(self):
      """testing input in mixed case"""
        self.assertTrue(isPalindrome('AbcDcBA'), "'AbcDcBA' should be a palindrome")
        self.assertFalse(isPalindrome('pYThon'), "'pYThon' is not a palindrome")
        self.assertTrue(isPalindrome('crAzYyZARC'), "'crAzYyZARC' should be a palindrome")

    def test_sentences(self):
        """testing sentences"""
        self.assertTrue(isPalindrome("Madam I'm Adam"), "'Madam I'm Adam' should be a palindrome")
        self.assertFalse(isPalindrome("Madam I'm Eve"), "'Madam I'm Eve' is not a palindrome")
        self.assertTrue(isPalindrome("Sit on a potato pan, Otis"), "'Sit on a potato pan, Otis' should be a palindrome")

    def test_sentences_with_special_chars(self):
        """testing input with special characters"""
        self.assertTrue(isPalindrome("Ma d;am I;;''m A#da'm"), "'Ma d;am I;;''m A#da'm' should be a palindrome")
        self.assertFalse(isPalindrome(";M;adam I'm Eve"), "';M;adam I'm Eve' is not a palindrome")
        self.assertTrue(isPalindrome(";S>>i''' t o] n a p:ota@to p!a!n, Oti{s"), "';S>>i''' t o] n a p:ota@to p!a!n, Oti{s' should be a palindrome")

    def test_different_type_input(self):
        """testing input in different data types"""
        self.assertFalse(isPalindrome(123),'123 is not a palindrome string')
        self.assertFalse(isPalindrome([0.2,1.4,5.6]), '[0.2,1.4,5.6] is not a palindrome string')
        #passing a boolean value to isPalindrome
        self.assertFalse(isPalindrome(isPalindrome('S')), 'isPalindrome("S") is not a palindrome string')

# Do not modify the 2 lines below
if __name__ == '__main__':
    unittest.main(exit=False)

#output

.......
----------------------------------------------------------------------
Ran 7 tests in 0.000s

OK