fix(core): update

test/test.tree.both.ts

@@ -1,5 +1,5 @@
 import { tap, expect } from '@pushrocks/tapbundle';
-import * as lik from '../ts/index';
+import * as lik from '../ts/index.js';
 
 class TestClass {
   constructor(public hey: string) {
@@ -24,7 +24,7 @@ tap.test('create a valid tree instance', async () => {
 tap.test('should insert an object', async () => {
   testTree.initialize(testInstance);
   let resultArray = testTree.treeToArray(testInstance, {});
-  // TODO expect(resultArray).toContain(testInstance);
+  expect(resultArray).toContain(testInstance);
 });
 
 tap.test('should add other objects in a hierachy', async () => {