build: move zone.js to angular repo (#30962)

PR Close #30962

packages/zone.js/test/node/timer.spec.ts

@@ -0,0 +1,31 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+import {promisify} from 'util';
+
+describe('node timer', () => {
+  it('util.promisify should work with setTimeout', (done: DoneFn) => {
+    const setTimeoutPromise = promisify(setTimeout);
+    setTimeoutPromise(50, 'value')
+        .then(
+            value => {
+              expect(value).toEqual('value');
+              done();
+            },
+            error => { fail(`should not be here with error: ${error}.`); });
+  });
+
+  it('util.promisify should work with setImmediate', (done: DoneFn) => {
+    const setImmediatePromise = promisify(setImmediate);
+    setImmediatePromise('value').then(
+        value => {
+          expect(value).toEqual('value');
+          done();
+        },
+        error => { fail(`should not be here with error: ${error}.`); });
+  });
+});