TestLevenShtein

Complexity

Total Complexity

4

Size/Duplication

Total Lines	37
Duplicated Lines	0 %

Importance

Changes	2
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	test_zero_words_should_zero()	0	7	1
A	test_same_word_should_zero()	0	7	1
A	test_first_longer_equal_one()	0	7	1
A	test_second_longer_equal_one()	0	8	1

import sys

from unittest import TestCase

levenshtein = sys.modules["Rainmeter.completion.levenshtein"]


class TestLevenShtein(TestCase):
    """
    Test for the levenshtein module
    """

    def test_same_word_should_zero(self):
        """
        if we use the same word there should be no difference required
        """
        diff = levenshtein.levenshtein("hello", "hello")

        self.assertEqual(diff, 0)

    def test_zero_words_should_zero(self):
        """
        special case with same word but both are empty
        """
        diff = levenshtein.levenshtein("", "")

        self.assertEqual(diff, 0)

    def test_first_longer_equal_one(self):
        """
        try with same word base but missing characters
        """
        diff = levenshtein.levenshtein("hello", "hell")

        self.assertEqual(diff, 1)

    def test_second_longer_equal_one(self):
        """
        reversed case of the missing character.
        method should work in both ways and not return a negative difference
        """
        diff = levenshtein.levenshtein("hell", "hello")

        self.assertEqual(diff, 1)