refactor: keep CorePlugin noop impl as fallback

Author: jbroma

packages/repack/src/modules/FederationRuntimePlugins/CorePlugin.ts

@@ -27,6 +27,14 @@ const RepackCorePlugin: () => FederationRuntimePlugin = () => ({
       console.error(`Failed to load remote entry: ${entryGlobalName}`);
     }
   },
+  generatePreloadAssets: async () => {
+    // noop for compatibility
+    return Promise.resolve({
+      cssAssets: [],
+      jsAssetsWithoutEntry: [],
+      entryAssets: [],
+    });
+  },
 });
 
 export default RepackCorePlugin;

packages/repack/src/modules/FederationRuntimePlugins/__tests__/CorePlugin.test.ts

@@ -129,4 +129,14 @@ describe('RepackCorePlugin', () => {
       `Failed to load remote entry: ${mockRemoteInfo.entryGlobalName}`
     );
   });
+
+  it('should provide a noop generatePreloadAssets implementation', async () => {
+    const plugin = RepackCorePlugin();
+
+    const result = await plugin.generatePreloadAssets!({} as any);
+
+    expect(result).toHaveProperty('cssAssets');
+    expect(result).toHaveProperty('jsAssetsWithoutEntry');
+    expect(result).toHaveProperty('entryAssets');
+  });
 });