fix(core): update

test/test.tree.both.ts

@@ -0,0 +1,40 @@
+import { tap, expect } from '@pushrocks/tapbundle';
+import * as lik from '../ts/index';
+
+class TestClass {
+  constructor(public hey: string) {
+    // nothing here
+  }
+}
+
+let testTree = new lik.Tree<TestClass>();
+
+let testInstance = new TestClass('first');
+let testInstance2 = new TestClass('second');
+let testInstance3 = new TestClass('third');
+let testInstance4 = new TestClass('fourth');
+let testInstance5 = new TestClass('fifth');
+let testInstance6 = new TestClass('sixth');
+
+tap.test('create a valid tree instance', async () => {
+  testTree = new lik.Tree();
+  expect(testTree).to.be.instanceOf(lik.Tree);
+});
+
+tap.test('should insert an object', async () => {
+  testTree.initialize(testInstance);
+  let resultArray = testTree.treeToArray(testInstance, {});
+  expect(resultArray).to.contain(testInstance);
+});
+
+tap.test('should add other objects in a hierachy', async () => {
+  testTree.appendChild(testInstance, testInstance2);
+  testTree.appendChild(testInstance, testInstance3);
+  testTree.appendChild(testInstance, testInstance4);
+});
+
+tap.test("should create a JSON object that reflects a tree's hierachy", async () => {
+  const jsonTreet = testTree.toJsonWithHierachy(testInstance);
+});
+
+tap.start();