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

PR Close #30962

packages/zone.js/test/rxjs/rxjs.Observable.do.spec.ts

@@ -0,0 +1,45 @@
+/**
+ * @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, of } from 'rxjs';
+import {tap} from 'rxjs/operators';
+
+describe('Observable.tap', () => {
+  let log: any[];
+  let observable1: Observable<any>;
+
+  beforeEach(() => { log = []; });
+
+  it('do func callback should run in the correct zone', () => {
+    const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
+    const doZone1: Zone = Zone.current.fork({name: 'Do Zone1'});
+    const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
+    const error = new Error('test');
+    observable1 = constructorZone1.run(() => { return of (1); });
+
+    observable1 = doZone1.run(() => {
+      return observable1.pipe(tap((v: any) => {
+        log.push(v);
+        expect(Zone.current.name).toEqual(doZone1.name);
+      }));
+    });
+
+    subscriptionZone.run(() => {
+      observable1.subscribe(
+          (result: any) => {
+            log.push('result' + result);
+            expect(Zone.current.name).toEqual(subscriptionZone.name);
+          },
+          (err: any) => { fail('should not call error'); },
+          () => {
+            log.push('completed');
+            expect(Zone.current.name).toEqual(subscriptionZone.name);
+            expect(log).toEqual([1, 'result1', 'completed']);
+          });
+    });
+  });
+});