Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Python Testing Be Assertive assertTrue and assertFalse

Why my code doesn't pass?

What's wrong with my code.

tests.py
import unittest

from string_fun import is_palindrome


class PalindromeTestCase(unittest.TestCase):
    def test_good_palindrome(self):
        self.assertTrue(is_palindrome("tactocat"))

    def test_bad_palindrome(self):
        pass
string_fun.py
def is_palindrome(yarn):
    """Return whether or not a string is a palindrome.

    A palindrome is a word/phrase that's the same in
    both directions.
    """
    return yarn == yarn[::-1]

1 Answer