test(engine-server): assert HMR not supported (#4482)

Author: nolanlawson

packages/@lwc/engine-server/src/__tests__/unsupported-apis.spec.ts

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2024, Salesforce, Inc.
+ * All rights reserved.
+ * SPDX-License-Identifier: MIT
+ * For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT
+ */
+import { swapComponent, swapStyle, swapTemplate } from '../index';
+
+it('throws error for swapComponent', () => {
+    expect(swapComponent).toThrow(
+        /swapComponent is not supported in @lwc\/engine-server, only @lwc\/engine-dom/
+    );
+});
+
+it('throws error for swapStyle', () => {
+    expect(swapStyle).toThrow(
+        /swapStyle is not supported in @lwc\/engine-server, only @lwc\/engine-dom/
+    );
+});
+
+it('throws error for swapTemplate', () => {
+    expect(swapTemplate).toThrow(
+        /swapTemplate is not supported in @lwc\/engine-server, only @lwc\/engine-dom/
+    );
+});