Hermetic real-MainWindow tests: LayoutPathOverride temp-DB seam (InternalsVisibleTo); fix tests persisting fake webcam sources over the real layout DB; LayoutStore delete-roundtrip guard

2026-08-06 15:16:58 -07:00
parent 7bc70872d9
commit f31ce9fdb7
5 changed files with 90 additions and 2 deletions
@@ -0,0 +1,50 @@
+using System;
+using System.IO;
+using Microsoft.Data.Sqlite;
+using Xunit;
+using ytLive.Models;
+using ytLive.Services;
+
+namespace ytLive.Tests;
+
+/// <summary>
+/// The layout DB is a full rewrite on every save (DELETE all scenes/sources,
+/// re-insert from memory). This guards the round trip: sources the user deletes
+/// in the UI must not come back after a save + reload.
+/// </summary>
+public class LayoutStorePersistenceTests
+{
+    [Fact]
+    public void Deleted_Webcam_Source_Does_Not_Return_After_Save_And_Reload()
+    {
+        var path = Path.Combine(Path.GetTempPath(), $"ytLlive-layout-{Guid.NewGuid():N}.db");
+        try
+        {
+            using var store = new LayoutStore(path);
+            var scene = new Scene { Name = "Starting" };
+            scene.Sources.Add(new Source
+            {
+                Name = "Webcam",
+                Type = SourceType.Webcam,
+                DeviceId = "real-device",
+                Width = 480,
+                Height = 270,
+            });
+            store.Save(new[] { scene });
+
+            var reloaded = store.Load();
+            Assert.Single(reloaded[0].Sources);
+
+            reloaded[0].Sources.RemoveAt(0);
+            store.Save(reloaded);
+
+            var afterDelete = store.Load();
+            Assert.Empty(afterDelete[0].Sources);
+        }
+        finally
+        {
+            SqliteConnection.ClearAllPools();
+            try { File.Delete(path); } catch { /* best-effort cleanup */ }
+        }
+    }
+}