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Python Python Testing Be Assertive assertRaises

Python Testing assertRaises challenge 2 of 2 fails with looks like Task 1 is no longer passing

I continue to get the error that task 1 is no longer passing when I submit code on task 2 of 2. This is even though I do not change the code for task 1 and despite the fact that it looks like it should work and is similar to answers given in forum posts?

test.py
import unittest

from string_fun import get_anagrams


class AnagramTestCase(unittest.TestCase):
    def test_empty_string(self):
        with self.assertRaises(ValueError):
            self.get_anagrams("")
    def test_no_args(unittest.TestCase):
        with self.assertRaises(ValueError):
            self.get_anagrams()
string_fun.py
import itertools


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]


def get_anagrams(*yarn):
    """Return a list of anagrams for a string."""
    # If only one letter came in, return it
    if yarn:
        if len(yarn[0]) == 1:
            return list(yarn)
        elif len(yarn[0] == 0):
            raise ValueError("Must provide at least two letters")
    else:
        raise ValueError("Must provide at least two letters")

    # Get all of the words from the dictionary
    words = set([
        w.strip().lower() for w in open('words.txt')
    ])

    output = set()
    for thread in yarn:
        thread = thread.lower()
        # Find all possible anagrams
        for i in range(2, len(thread)):
            fibers = set(
                [''.join(w) for w in itertools.permutations(thread, i)]
            )
            output.update(fibers.intersection(words))

    # Finally, return all of the combinations that are in the dictionary
    return sorted(list(output))

1 Answer

Steven Parker
Steven Parker
216,070 Points

A syntax error invalidates the entire program, and the challenge re-checks the tasks in order, so you can get that message from just adding new code.

And if you use the previous test as an example, you'll see it takes "self" as an argument (not "unittest.TestCase").