Backgrounds: one locked Background per screen + mini rule (TASK 25)

2026-08-23 13:33:33 -07:00
parent b400ab59c5
commit 7dd140a4c0
13 changed files with 554 additions and 309 deletions
@@ -44,14 +44,17 @@ public sealed class SourceNamingTests
            vm.AddSourceCommand.Execute(SourceType.TextOverlay);
            vm.AddSourceCommand.Execute(SourceType.TextOverlay);

-            var names = scene.Elements.OfType<Source>().Select(s => s.Name).ToList();
+            // The locked Background layer is always present but never numbered.
+            var names = scene.Elements.OfType<Source>().Where(s => !s.IsBackground)
+                .Select(s => s.Name).ToList();
            Assert.Equal(new[] { "Text", "Text2", "Text3" }, names);

            var middle = scene.Elements.OfType<Source>().Single(s => s.Name == "Text2");
            scene.Elements.Remove(middle);
            vm.AddSourceCommand.Execute(SourceType.TextOverlay);

-            var survivors = scene.Elements.OfType<Source>().Select(s => s.Name).ToList();
+            var survivors = scene.Elements.OfType<Source>().Where(s => !s.IsBackground)
+                .Select(s => s.Name).ToList();
            Assert.Equal(new[] { "Text", "Text3", "Text2" }, survivors);
        }
        finally