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

PR Close #30962

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

@@ -0,0 +1,86 @@
+/**
+ * @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, combineLatest} from 'rxjs';
+
+describe('Observable.combineLatest', () => {
+  let log: any[];
+  const constructorZone1: Zone = Zone.current.fork({name: 'Constructor Zone1'});
+  const constructorZone2: Zone = Zone.current.fork({name: 'Constructor Zone2'});
+  const constructorZone3: Zone = Zone.current.fork({name: 'Constructor Zone3'});
+  const subscriptionZone: Zone = Zone.current.fork({name: 'Subscription Zone'});
+  let observable1: Observable<any>;
+  let observable2: any;
+  let subscriber1: any;
+  let subscriber2: any;
+
+  let combinedObservable: any;
+
+  beforeEach(() => { log = []; });
+
+  it('combineLatest func should run in the correct zone', () => {
+    observable1 = constructorZone1.run(() => new Observable((_subscriber) => {
+                                         subscriber1 = _subscriber;
+                                         expect(Zone.current.name).toEqual(constructorZone1.name);
+                                         log.push('setup1');
+                                       }));
+    observable2 = constructorZone2.run(() => new Observable((_subscriber) => {
+                                         subscriber2 = _subscriber;
+                                         expect(Zone.current.name).toEqual(constructorZone2.name);
+                                         log.push('setup2');
+                                       }));
+
+    constructorZone3.run(() => { combinedObservable = combineLatest(observable1, observable2); });
+
+    subscriptionZone.run(() => {
+      combinedObservable.subscribe((combined: any) => {
+        expect(Zone.current.name).toEqual(subscriptionZone.name);
+        log.push(combined);
+      });
+    });
+
+    subscriber1.next(1);
+    subscriber2.next(2);
+    subscriber2.next(3);
+
+    expect(log).toEqual(['setup1', 'setup2', [1, 2], [1, 3]]);
+  });
+
+  it('combineLatest func with project function should run in the correct zone', () => {
+    observable1 = constructorZone1.run(() => new Observable((_subscriber) => {
+                                         subscriber1 = _subscriber;
+                                         expect(Zone.current.name).toEqual(constructorZone1.name);
+                                         log.push('setup1');
+                                       }));
+    observable2 = constructorZone2.run(() => new Observable((_subscriber) => {
+                                         subscriber2 = _subscriber;
+                                         expect(Zone.current.name).toEqual(constructorZone2.name);
+                                         log.push('setup2');
+                                       }));
+
+    constructorZone3.run(() => {
+      combinedObservable = combineLatest(observable1, observable2, (x: number, y: number) => {
+        expect(Zone.current.name).toEqual(constructorZone3.name);
+        return x + y;
+      });
+    });
+
+    subscriptionZone.run(() => {
+      combinedObservable.subscribe((combined: any) => {
+        expect(Zone.current.name).toEqual(subscriptionZone.name);
+        log.push(combined);
+      });
+    });
+
+    subscriber1.next(1);
+    subscriber2.next(2);
+    subscriber2.next(3);
+
+    expect(log).toEqual(['setup1', 'setup2', 3, 4]);
+  });
+});