chore: establish learning module baseline

OpenMAIC/packages/@openmaic/editor/test/react/elementClipboard.test.ts

@@ -0,0 +1,42 @@
+import { describe, expect, it } from 'vitest';
+import { parseElementClipboardPayload } from '../../src/react/elementClipboard';
+
+const element = {
+  id: 'text-1',
+  type: 'text',
+  left: 10,
+  top: 20,
+  width: 100,
+  height: 40,
+  rotate: 0,
+  content: '<p>Clipboard</p>',
+  defaultFontName: 'Arial',
+  defaultColor: '#333333',
+};
+
+describe('element clipboard payload compatibility', () => {
+  it.each(['openmaic/renderer-elements', 'openmaic/editor-elements'])(
+    'reads %s payloads',
+    (kind) => {
+      expect(
+        parseElementClipboardPayload(JSON.stringify({ kind, version: 1, elements: [element] })),
+      ).toEqual([element]);
+    },
+  );
+
+  it('rejects unrelated clipboard data', () => {
+    expect(parseElementClipboardPayload('{"kind":"other","version":1,"elements":[]}')).toBeNull();
+  });
+
+  it('rejects branded payloads whose elements violate the DSL contract', () => {
+    expect(
+      parseElementClipboardPayload(
+        JSON.stringify({
+          kind: 'openmaic/editor-elements',
+          version: 1,
+          elements: [{ ...element, left: '10' }],
+        }),
+      ),
+    ).toBeNull();
+  });
+});