public void Equal_strings_have_distance_zero()
{
var sut = new LevenshteinFuzzyMatch();
sut.Compare("levenshtein", "levenshtein")
.Should().Be(0);
}
public void When_difference_is_one_char_case_distance_is_one()
{
var sut = new LevenshteinFuzzyMatch();
sut.Compare("Levenshtein", "levenshtein")
.Should().Be(1);
sut.Compare("levensHtein", "levenshtein")
.Should().Be(1);
}
public void When_miss_just_one_char_distance_is_one()
{
var sut = new LevenshteinFuzzyMatch();
sut.Compare("levenshtein", "levenshtei")
.Should().Be(1);
sut.Compare("evenshtein", "levenshtein")
.Should().Be(1);
}
public override IEnumerable <ResultInfo> Process(IEnumerable <ResultInfo> results)
{
var fuzzyMatch = new LevenshteinFuzzyMatch();
return
(from computed in
from result in results
select new { result = result,
distance = fuzzyMatch.Compare(_settings.Text, result.Description) }
where computed.distance >= _settings.MinimumDistance &&
computed.distance <= _settings.MaximumDistance
select computed.result);
}
