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require_relative '../helper'
# These tests were originally written by Jian Weihang (簡煒航) as part of his work
# on the jaro_winkler gem. The original code could be found here:
# https://github.com/tonytonyjan/jaro_winkler/blob/9bd12421/spec/jaro_winkler_spec.rb
#
# Copyright (c) 2014 Jian Weihang
class JaroWinklerTest < Test::Unit::TestCase
def test_jaro_winkler_distance
assert_distance 0.9667, 'henka', 'henkan'
assert_distance 1.0, 'al', 'al'
assert_distance 0.9611, 'martha', 'marhta'
assert_distance 0.8324, 'jones', 'johnson'
assert_distance 0.9167, 'abcvwxyz', 'zabcvwxy'
assert_distance 0.9583, 'abcvwxyz', 'cabvwxyz'
assert_distance 0.84, 'dwayne', 'duane'
assert_distance 0.8133, 'dixon', 'dicksonx'
assert_distance 0.0, 'fvie', 'ten'
assert_distance 0.9067, 'does_exist', 'doesnt_exist'
assert_distance 1.0, 'x', 'x'
end
def test_jarowinkler_distance_with_utf8_strings
assert_distance 0.9818, '變形金剛4:絕跡重生', '變形金剛4: 絕跡重生'
assert_distance 0.8222, '連勝文', '連勝丼'
assert_distance 0.8222, '馬英九', '馬英丸'
assert_distance 0.6667, '良い', 'いい'
end
private
def assert_distance(score, str1, str2)
assert_equal score, DidYouMean::JaroWinkler.distance(str1, str2).round(4)
end
end
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