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

PR Close #30962

packages/zone.js/test/rxjs/rxjs.from.spec.ts

@@ -0,0 +1,81 @@
+/**
+ * @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 {Observable, from} from 'rxjs';
+
+import {asyncTest} from '../test-util';
+
+describe('Observable.from', () => {
+  let log: any[];
+  const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
+  const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
+  let observable1: Observable<any>;
+
+  beforeEach(() => { log = []; });
+
+  it('from array should run in the correct zone', () => {
+    observable1 = constructorZone1.run(() => { return from([1, 2]); });
+
+    subscriptionZone.run(() => {
+      observable1.subscribe(
+          (result: any) => {
+            expect(Zone.current.name).toEqual(subscriptionZone.name);
+            log.push(result);
+          },
+          () => { fail('should not call error'); },
+          () => {
+            expect(Zone.current.name).toEqual(subscriptionZone.name);
+            log.push('completed');
+          });
+    });
+
+    expect(log).toEqual([1, 2, 'completed']);
+  });
+
+  it('from array like object should run in the correct zone', () => {
+    observable1 = constructorZone1.run(() => { return from('foo'); });
+
+    subscriptionZone.run(() => {
+      observable1.subscribe(
+          (result: any) => {
+            expect(Zone.current.name).toEqual(subscriptionZone.name);
+            log.push(result);
+          },
+          () => { fail('should not call error'); },
+          () => {
+            expect(Zone.current.name).toEqual(subscriptionZone.name);
+            log.push('completed');
+          });
+    });
+
+    expect(log).toEqual(['f', 'o', 'o', 'completed']);
+  });
+
+  it('from promise object should run in the correct zone', asyncTest((done: any) => {
+       const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
+       const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
+       observable1 = constructorZone1.run(
+           () => { return from(new Promise((resolve, reject) => { resolve(1); })); });
+
+       subscriptionZone.run(() => {
+         observable1.subscribe(
+             (result: any) => {
+               expect(Zone.current.name).toEqual(subscriptionZone.name);
+               log.push(result);
+             },
+             (error: any) => { fail('should not call error' + error); },
+             () => {
+               expect(Zone.current.name).toEqual(subscriptionZone.name);
+               log.push('completed');
+               expect(log).toEqual([1, 'completed']);
+               done();
+             });
+       });
+
+       expect(log).toEqual([]);
+     }, Zone.root));
+});