using Explorer.Application;

namespace Explorer.Application.Tests;

public class FilenamePatternsTests
{
    [Fact]
    public void Combine_lists_built_in_then_saved()
    {
        var combined = FilenamePatterns.Combine(["{Album} - {Title}", "{Artist} - {Title}"]);
        Assert.Equal(FilenamePatterns.BuiltIn[0], combined[0]);
        Assert.Contains("{Album} - {Title}", combined);
        Assert.Equal(1, combined.Count(p => p.Equals("{Artist} - {Title}", StringComparison.OrdinalIgnoreCase)));
    }

    [Fact]
    public void Add_puts_the_new_pattern_first_and_drops_built_ins_from_saved()
    {
        var saved = FilenamePatterns.Add(null, "{Album} - {Title}");
        Assert.Equal(["{Album} - {Title}"], saved);
        Assert.Empty(FilenamePatterns.Normalize(["{Artist} - {Title}", "  "]));
    }
}