using UnitTestSharp;

namespace Glass.UnitTests
{
    public class FileFilterTests : TestFixture
    {
        public class AllFilesTests : TestFixture
        {
            public void Always_HasNoExtensions()
            {
                CheckNull(FileFilter.AllFiles.Extensions);
            }
        }

        public class MatchesTests : TestFixture
        {
            public void NoExtensions_MatchesAnything()
            {
                CheckTrue(FileFilter.AllFiles.Matches("anything.at.all"));
            }

            public void DefaultFilter_MatchesAnything()
            {
                CheckTrue(default(FileFilter).Matches("anything"));
            }

            public void NameEndingInAnExtension_Matches()
            {
                var filter = new FileFilter("Text files", new[] { ".txt" });

                CheckTrue(filter.Matches("notes.txt"));
            }

            public void CaseIsIgnored()
            {
                var filter = new FileFilter("Text files", new[] { ".txt" });

                CheckTrue(filter.Matches("NOTES.TXT"));
            }

            public void NameEndingInAnotherExtension_DoesNotMatch()
            {
                var filter = new FileFilter("Text files", new[] { ".txt" });

                CheckFalse(filter.Matches("notes.md"));
            }

            public void NameWithoutAnExtension_DoesNotMatch()
            {
                var filter = new FileFilter("Text files", new[] { ".txt" });

                CheckFalse(filter.Matches("notes"));
            }

            public void ExtensionInTheMiddleOfTheName_DoesNotMatch()
            {
                var filter = new FileFilter("Text files", new[] { ".txt" });

                CheckFalse(filter.Matches("notes.txt.bak"));
            }

            public void AnyOfSeveralExtensions_Matches()
            {
                var filter = new FileFilter("Documents", new[] { ".txt", ".md" });

                CheckTrue(filter.Matches("readme.md"));
            }

            public void NoneOfSeveralExtensions_DoesNotMatch()
            {
                var filter = new FileFilter("Documents", new[] { ".txt", ".md" });

                CheckFalse(filter.Matches("image.png"));
            }
        }
    }
}