Screen backdrop (schema v5/v6) + five-scene catalog + webcam polish: live desktop/game capture as a permanent non-deletable bottom layer (Source.IsBackdrop), auto full-screen game detection (Win32FullScreenDetector) else primary display, GraphicsCapturePicker re-designation, refcounted shared ScreenCaptureManager, Live-only backdrop by policy (HasBackdrop + v5-v6 backfill + EnforceBackdropPolicy, checkbox gone), SceneCatalog (Starting/Live/BRB/Chat/Ending) with + button re-adding missing scenes, webcam mid-session transparent-container fix (GetPreviewBitmap propagation), Chat half-screen-area cap, 'Add Webcam' always opens the picker (SwapWebcamIdentityAsync, no silent resurrect), WindowsRuntimeMarshal frame-read + 5s-throttled errors, docs updated, tests (65 passing)

2026-08-07 14:15:50 -07:00
parent e037ba027b
commit ad9b3e1e48
27 changed files with 2232 additions and 116 deletions
@@ -0,0 +1,77 @@
+using Xunit;
+using ytLive.Models;
+using ytLive.ViewModels;
+
+namespace ytLive.Tests;
+
+/// <summary>
+/// The app is a five-scene product: Starting/Live/BRB/Chat/Ending. Scenes are
+/// worked on by name; you can delete them but never add beyond the set, and the
+/// live backdrop belongs to Live alone.
+/// </summary>
+public class SceneCatalogTests
+{
+    [Fact]
+    public void SceneCatalog_Defines_The_Five_Canonical_Scenes()
+    {
+        Assert.Equal(
+            new[] { "Starting", "Live", "BRB", "Chat", "Ending" },
+            SceneCatalog.All);
+    }
+
+    [Theory]
+    [InlineData("Starting", true)]
+    [InlineData("Live", true)]
+    [InlineData("BRB", true)]
+    [InlineData("Chat", true)]
+    [InlineData("Ending", true)]
+    [InlineData("live", true)]
+    [InlineData("My Scene", false)]
+    [InlineData("", false)]
+    [InlineData(null, false)]
+    public void SceneCatalog_IsCanonical_Matches_By_Name(string? name, bool expected)
+    {
+        Assert.Equal(expected, SceneCatalog.IsCanonical(name));
+    }
+
+    [Theory]
+    [InlineData("Starting", false)]
+    [InlineData("Live", true)]
+    [InlineData("BRB", false)]
+    [InlineData("Chat", false)]
+    [InlineData("Ending", false)]
+    public void SceneCatalog_HasBackdrop_Only_For_Live(string name, bool expected)
+    {
+        Assert.Equal(expected, SceneCatalog.HasBackdrop(name));
+    }
+
+    [Fact]
+    public void EnforceBackdropPolicy_Removes_Backdrop_From_NonLive_Scenes()
+    {
+        var chat = new Scene { Name = "Chat", HasBackdrop = true };
+        var live = new Scene { Name = "Live", HasBackdrop = true };
+        var chatBackdrop = MainViewModel.EnsureBackdrop(chat)!;
+        var liveBackdrop = MainViewModel.EnsureBackdrop(live)!;
+        Assert.Contains(chat.Elements, e => ReferenceEquals(e, chatBackdrop));
+
+        MainViewModel.EnforceBackdropPolicy(new[] { chat, live });
+
+        Assert.False(chat.HasBackdrop);
+        Assert.DoesNotContain(chat.Elements, e => e is Source { IsBackdrop: true });
+        Assert.True(live.HasBackdrop);
+        Assert.Contains(live.Elements, e => ReferenceEquals(e, liveBackdrop));
+    }
+
+    [Fact]
+    public void EnforceBackdropPolicy_Marks_Live_And_Clears_A_Pre_Policy_Database()
+    {
+        var starting = new Scene { Name = "Starting", HasBackdrop = true };
+        MainViewModel.EnsureBackdrop(starting);
+        var live = new Scene { Name = "Live", HasBackdrop = false };
+
+        MainViewModel.EnforceBackdropPolicy(new[] { starting, live });
+
+        Assert.False(starting.HasBackdrop);
+        Assert.True(live.HasBackdrop);
+    }
+}