angular-docs-cn/packages/service-worker/testing/mock.ts

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/**
* @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 {Subject} from 'rxjs';
export const patchDecodeBase64 = (proto: {decodeBase64: typeof atob}) => {
let unpatch: () => void = () => undefined;
if ((typeof atob === 'undefined') && (typeof Buffer === 'function')) {
const oldDecodeBase64 = proto.decodeBase64;
const newDecodeBase64 = (input: string) => Buffer.from(input, 'base64').toString('binary');
proto.decodeBase64 = newDecodeBase64;
unpatch = () => { proto.decodeBase64 = oldDecodeBase64; };
}
return unpatch;
};
export class MockServiceWorkerContainer {
private onControllerChange: Function[] = [];
private onMessage: Function[] = [];
mockRegistration: MockServiceWorkerRegistration|null = null;
controller: MockServiceWorker|null = null;
messages = new Subject();
addEventListener(event: 'controllerchange'|'message', handler: Function) {
if (event === 'controllerchange') {
this.onControllerChange.push(handler);
} else if (event === 'message') {
this.onMessage.push(handler);
}
}
removeEventListener(event: 'controllerchange', handler: Function) {
if (event === 'controllerchange') {
this.onControllerChange = this.onControllerChange.filter(h => h !== handler);
} else if (event === 'message') {
this.onMessage = this.onMessage.filter(h => h !== handler);
}
}
async register(url: string): Promise<void> { return; }
async getRegistration(): Promise<ServiceWorkerRegistration> {
return this.mockRegistration as any;
}
setupSw(url: string = '/ngsw-worker.js'): void {
this.mockRegistration = new MockServiceWorkerRegistration();
this.controller = new MockServiceWorker(this, url);
this.onControllerChange.forEach(onChange => onChange(this.controller));
}
sendMessage(value: Object): void {
this.onMessage.forEach(onMessage => onMessage({
data: value,
}));
}
}
export class MockServiceWorker {
constructor(private mock: MockServiceWorkerContainer, readonly scriptURL: string) {}
postMessage(value: Object) { this.mock.messages.next(value); }
}
export class MockServiceWorkerRegistration {
pushManager: PushManager = new MockPushManager() as any;
}
export class MockPushManager {
private subscription: PushSubscription|null = null;
getSubscription(): Promise<PushSubscription|null> { return Promise.resolve(this.subscription); }
subscribe(options?: PushSubscriptionOptionsInit): Promise<PushSubscription> {
this.subscription = new MockPushSubscription() as any;
return Promise.resolve(this.subscription !);
}
}
export class MockPushSubscription {
unsubscribe(): Promise<boolean> { return Promise.resolve(true); }
}