config UI updates

tests/RenderCadenceCompositorRuntimeLayerModelTests.cpp

@@ -222,6 +222,42 @@ void TestAddAndRemoveLayers()
 	std::filesystem::remove_all(root);
 }
 
+void TestSnapshotCompileMessageSummarizesLayerStack()
+{
+	std::filesystem::path root;
+	RenderCadenceCompositor::SupportedShaderCatalog catalog = MakeCatalog(root);
+
+	RenderCadenceCompositor::RuntimeLayerModel model;
+	std::string error;
+	std::string firstLayerId;
+	std::string secondLayerId;
+	Expect(model.AddLayer(catalog, "solid", firstLayerId, error), "first layer can be added for summary test");
+	Expect(model.AddLayer(catalog, "solid", secondLayerId, error), "second layer can be added for summary test");
+
+	RuntimeShaderArtifact firstArtifact;
+	firstArtifact.layerId = firstLayerId;
+	firstArtifact.shaderId = "solid";
+	firstArtifact.displayName = "Solid";
+	firstArtifact.fragmentShaderSource = "void main(){}";
+	firstArtifact.message = "Solid package build completed: 1 Slang pass compiled in 10.00 ms.";
+	Expect(model.MarkBuildReady(firstArtifact, error), "first ready artifact updates summary test model");
+
+	RuntimeShaderArtifact secondArtifact = firstArtifact;
+	secondArtifact.layerId = secondLayerId;
+	secondArtifact.message = "Solid package build completed: 1 Slang pass compiled in 11.00 ms.";
+	Expect(model.MarkBuildReady(secondArtifact, error), "second ready artifact updates summary test model");
+
+	const RenderCadenceCompositor::RuntimeLayerModelSnapshot snapshot = model.Snapshot();
+	Expect(snapshot.compileMessage.find("Runtime stack ready: 2/2 layer shaders compiled and render-ready.") != std::string::npos,
+		"compile message summarizes the whole layer stack");
+	Expect(snapshot.compileMessage.find("Layer 1 Solid (ready): Solid package build completed") != std::string::npos,
+		"compile message includes first layer detail");
+	Expect(snapshot.compileMessage.find("Layer 2 Solid (ready): Solid package build completed") != std::string::npos,
+		"compile message includes second layer detail");
+
+	std::filesystem::remove_all(root);
+}
+
 void TestInitializeFromRuntimeStateRestoresLayerStack()
 {
 	std::filesystem::path root = MakeTestRoot();
@@ -542,6 +578,7 @@ int main()
 	TestRejectsUnsupportedStartupShader();
 	TestBuildFailureStaysDisplaySide();
 	TestAddAndRemoveLayers();
+	TestSnapshotCompileMessageSummarizesLayerStack();
 	TestInitializeFromRuntimeStateRestoresLayerStack();
 	TestInvalidRuntimeStateCanFallBackToConfiguredShader();
 	TestLayerControlsUpdateDisplayAndRenderModels();