Phase D (T2-10): media playlist - auto-collect detected media, flyout management, player window (native+hls.js+dash.js bundles), persistence, auto-next (101 tests GREEN)

VideoDownloader.Tests/Browser/MediaPlaylistTests.cs

@@ -0,0 +1,96 @@
+using VideoDownloader.App.Browser.Features;
+
+namespace VideoDownloader.Tests.Browser;
+
+// ── T2-10 미디어 재생목록 (Brave Playlist 패턴): 감지된 미디어를 쌓고 재생/제거/영속 ──
+public class MediaPlaylistTests : IDisposable
+{
+    private readonly string _path = Path.Combine(Path.GetTempPath(), $"playlist_{Guid.NewGuid():N}.json");
+    private readonly MediaPlaylist _pl = new();
+
+    private MediaTrack Mk(string url = "https://v.test/a.mp4", string title = "트랙A", string kind = "Direct")
+        => new(url, title, kind, AddedAt: DateTime.UtcNow);
+
+    [Fact]
+    public void Add는_재생목록_끝에_추가하고_중복_URL은_무시한다()
+    {
+        var t = Mk();
+        _pl.Add(t);
+        _pl.Add(Mk(url: "https://v.test/b.mp4", title: "트랙B"));
+        _pl.Add(Mk()); // 동일 URL 중복
+        Assert.Equal(2, _pl.Tracks.Count);
+        Assert.Equal("트랙A", _pl.Tracks[0].Title);
+    }
+
+    [Fact]
+    public void Remove와_Clear()
+    {
+        var a = Mk(); var b = Mk("https://v.test/b.mp4", "B");
+        _pl.Add(a); _pl.Add(b);
+        _pl.Remove(a);
+        Assert.Single(_pl.Tracks);
+        _pl.Clear();
+        Assert.Empty(_pl.Tracks);
+    }
+
+    [Fact]
+    public void 다음_이전_트랙은_순환한다()
+    {
+        _pl.Add(Mk("u1", "1"));
+        _pl.Add(Mk("u2", "2"));
+        _pl.Add(Mk("u3", "3"));
+        _pl.CurrentIndex = 0;
+
+        Assert.Equal(1, _pl.Next());
+        Assert.Equal(2, _pl.Next());
+        Assert.Equal(0, _pl.Next()); // 순환
+        Assert.Equal(2, _pl.Previous());
+    }
+
+    [Fact]
+    public void 현재_트랙은_CurrentIndex로_얻는다()
+    {
+        _pl.Add(Mk("u1", "1"));
+        _pl.Add(Mk("u2", "2"));
+        _pl.CurrentIndex = 1;
+        Assert.Equal("u2", _pl.Current?.Url);
+    }
+
+    [Fact]
+    public void 영속_라운드트립()
+    {
+        _pl.Add(Mk("u1", "제목1", "Hls"));
+        _pl.Add(Mk("u2", "제목2", "Direct"));
+        _pl.CurrentIndex = 1;
+        _pl.Save(_path);
+
+        var loaded = new MediaPlaylist();
+        Assert.Equal(0, loaded.Tracks.Count);
+        loaded.Load(_path);
+        Assert.Equal(2, loaded.Tracks.Count);
+        Assert.Equal("제목1", loaded.Tracks[0].Title);
+        Assert.Equal("Hls", loaded.Tracks[0].Kind);
+        Assert.Equal(1, loaded.CurrentIndex);
+    }
+
+    [Fact]
+    public void 손상된_JSON은_빈_목록으로_시작()
+    {
+        File.WriteAllText(_path, "{broken");
+        var pl = new MediaPlaylist();
+        pl.Load(_path);
+        Assert.Empty(pl.Tracks);
+    }
+
+    [Fact]
+    public void 재생완료_표시와_완료필터()
+    {
+        _pl.Add(Mk("u1", "1"));
+        _pl.Add(Mk("u2", "2"));
+        _pl.MarkPlayed(_pl.Tracks[0]);
+        Assert.True(_pl.Tracks[0].Played);
+        Assert.False(_pl.Tracks[1].Played);
+    }
+
+    public void Dispose() { try { File.Delete(_path); } catch { } }
+}