using Xunit;

public class AnagramTest
{
    [Fact]
    public void No_matches()
    {
        var detector = new Anagram("diaper");
        var words = new[] { "hello", "world", "zombies", "pants" };
        var results = new string[0];
        Assert.Equal(results, detector.Match(words));
    }

    [Fact(Skip = "Remove to run test")]
    public void Detect_simple_anagram()
    {
        var detector = new Anagram("ant");
        var words = new[] { "tan", "stand", "at" };
        var results = new[] { "tan" };
        Assert.Equal(results, detector.Match(words));
    }

    [Fact(Skip = "Remove to run test")]
    public void Detect_multiple_anagrams()
    {
        var detector = new Anagram("master");
        var words = new[] { "stream", "pigeon", "maters" };
        var results = new[] { "maters", "stream" };
        Assert.Equal(results, detector.Match(words));
    }

    [Fact(Skip = "Remove to run test")]
    public void Does_not_confuse_different_duplicates()
    {
        var detector = new Anagram("galea");
        var words = new[] { "eagle" };
        var results = new string[0];
        Assert.Equal(results, detector.Match(words));
    }

    [Fact(Skip = "Remove to run test")]
    public void Identical_word_is_not_anagram()
    {
        var detector = new Anagram("corn");
        var words = new[] { "corn", "dark", "Corn", "rank", "CORN", "cron", "park" };
        var results = new[] { "cron" };
        Assert.Equal(results, detector.Match(words));
    }

    [Fact(Skip = "Remove to run test")]
    public void Eliminate_anagrams_with_same_checksum()
    {
        var detector = new Anagram("mass");
        var words = new[] { "last" };
        var results = new string[0];
        Assert.Equal(results, detector.Match(words));
    }

    [Fact(Skip = "Remove to run test")]
    public void Eliminate_anagram_subsets()
    {
        var detector = new Anagram("good");
        var words = new[] { "dog", "goody" };
        var results = new string[0];
        Assert.Equal(results, detector.Match(words));
    }

    [Fact(Skip = "Remove to run test")]
    public void Detect_anagrams()
    {
        var detector = new Anagram("allergy");
        var words = new[] { "gallery", "ballerina", "regally", "clergy", "largely", "leading" };
        var results = new[] { "gallery", "largely", "regally" };
        Assert.Equal(results, detector.Match(words));
    }

    [Fact(Skip = "Remove to run test")]
    public void Anagrams_are_case_insensitive()
    {
        var detector = new Anagram("Orchestra");
        var words = new[] { "cashregister", "Carthorse", "radishes" };
        var results = new[] { "Carthorse" };
        Assert.Equal(results, detector.Match(words));
    }

}