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# external
import pytest
# project
import textdistance
ALG = textdistance.MLIPNS
@pytest.mark.parametrize('left, right, expected', [
('', '', 1),
('a', '', 0),
('', 'a', 0),
('a', 'a', 1),
('ab', 'a', 1),
('abc', 'abc', 1),
('abc', 'abcde', 1),
('abcg', 'abcdeg', 1),
('abcg', 'abcdefg', 0),
('Tomato', 'Tamato', 1),
('ato', 'Tam', 1),
])
def test_distance(left, right, expected):
actual = ALG(external=False)(left, right)
assert actual == expected
actual = ALG(external=True)(left, right)
assert actual == expected
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