angular-docs-cn/packages/service-worker/test/integration_spec.ts

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/**
* @license
* Copyright Google LLC 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 {NgswCommChannel} from '@angular/service-worker/src/low_level';
import {SwPush} from '@angular/service-worker/src/push';
import {SwUpdate} from '@angular/service-worker/src/update';
import {MockServiceWorkerContainer, MockServiceWorkerRegistration} from '@angular/service-worker/testing/mock';
import {CacheDatabase} from '@angular/service-worker/worker/src/db-cache';
import {Driver} from '@angular/service-worker/worker/src/driver';
import {Manifest} from '@angular/service-worker/worker/src/manifest';
import {MockRequest} from '@angular/service-worker/worker/testing/fetch';
import {MockFileSystemBuilder, MockServerStateBuilder, tmpHashTableForFs} from '@angular/service-worker/worker/testing/mock';
import {SwTestHarness, SwTestHarnessBuilder} from '@angular/service-worker/worker/testing/scope';
import {Observable} from 'rxjs';
import {take} from 'rxjs/operators';
(function() {
// Skip environments that don't support the minimum APIs needed to run the SW tests.
if (!SwTestHarness.envIsSupported()) {
return;
}
const dist = new MockFileSystemBuilder().addFile('/only.txt', 'this is only').build();
const distUpdate = new MockFileSystemBuilder().addFile('/only.txt', 'this is only v2').build();
function obsToSinglePromise<T>(obs: Observable<T>): Promise<T> {
return obs.pipe(take(1)).toPromise();
}
const manifest: Manifest = {
configVersion: 1,
timestamp: 1234567890123,
appData: {version: '1'},
index: '/only.txt',
assetGroups: [{
name: 'assets',
installMode: 'prefetch',
updateMode: 'prefetch',
urls: ['/only.txt'],
patterns: [],
feat(service-worker): use `ignoreVary: true` when retrieving responses from cache (#34663) The Angular ServiceWorker always uses a copy of the request without headers for caching assets (in order to avoid issues with opaque responses). Therefore, it was previously not possible to retrieve resources from the cache if the response contained [Vary](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Vary) headers. In addition to that, `Vary` headers do not work in all browsers (or work differently) and may not work as intended with ServiceWorker caches. See [this article](https://www.smashingmagazine.com/2017/11/understanding-vary-header) and the linked resources for more info. This commit avoids the aforementioned issues by making sure the Angular ServiceWorker always sets the `ignoreVary` option passed to [Cache#match()](https://developer.mozilla.org/en-US/docs/Web/API/Cache/match) to `true`. This allows the ServiceWorker to correctly retrieve cached responses with `Vary` headers, which was previously not possible. Fixes #36638 BREAKING CHANGE: Previously, [Vary](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Vary) headers would be taken into account when retrieving resources from the cache, completely preventing the retrieval of cached assets (due to ServiceWorker implementation details) and leading to unpredictable behavior due to inconsistent/buggy implementations in different browsers. Now, `Vary` headers are ignored when retrieving resources from the ServiceWorker caches, which can result in resources being retrieved even when their headers are different. If your application needs to differentiate its responses based on request headers, please make sure the Angular ServiceWorker is [configured](https://angular.io/guide/service-worker-config) to avoid caching the affected resources. PR Close #34663
2020-04-29 10:59:15 -04:00
cacheQueryOptions: {ignoreVary: true},
}],
navigationUrls: [],
hashTable: tmpHashTableForFs(dist),
};
const manifestUpdate: Manifest = {
configVersion: 1,
timestamp: 1234567890123,
appData: {version: '2'},
index: '/only.txt',
assetGroups: [{
name: 'assets',
installMode: 'prefetch',
updateMode: 'prefetch',
urls: ['/only.txt'],
patterns: [],
feat(service-worker): use `ignoreVary: true` when retrieving responses from cache (#34663) The Angular ServiceWorker always uses a copy of the request without headers for caching assets (in order to avoid issues with opaque responses). Therefore, it was previously not possible to retrieve resources from the cache if the response contained [Vary](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Vary) headers. In addition to that, `Vary` headers do not work in all browsers (or work differently) and may not work as intended with ServiceWorker caches. See [this article](https://www.smashingmagazine.com/2017/11/understanding-vary-header) and the linked resources for more info. This commit avoids the aforementioned issues by making sure the Angular ServiceWorker always sets the `ignoreVary` option passed to [Cache#match()](https://developer.mozilla.org/en-US/docs/Web/API/Cache/match) to `true`. This allows the ServiceWorker to correctly retrieve cached responses with `Vary` headers, which was previously not possible. Fixes #36638 BREAKING CHANGE: Previously, [Vary](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Vary) headers would be taken into account when retrieving resources from the cache, completely preventing the retrieval of cached assets (due to ServiceWorker implementation details) and leading to unpredictable behavior due to inconsistent/buggy implementations in different browsers. Now, `Vary` headers are ignored when retrieving resources from the ServiceWorker caches, which can result in resources being retrieved even when their headers are different. If your application needs to differentiate its responses based on request headers, please make sure the Angular ServiceWorker is [configured](https://angular.io/guide/service-worker-config) to avoid caching the affected resources. PR Close #34663
2020-04-29 10:59:15 -04:00
cacheQueryOptions: {ignoreVary: true},
}],
navigationUrls: [],
hashTable: tmpHashTableForFs(distUpdate),
};
const server = new MockServerStateBuilder().withStaticFiles(dist).withManifest(manifest).build();
const serverUpdate =
new MockServerStateBuilder().withStaticFiles(distUpdate).withManifest(manifestUpdate).build();
describe('ngsw + companion lib', () => {
let mock: MockServiceWorkerContainer;
let comm: NgswCommChannel;
let reg: MockServiceWorkerRegistration;
let scope: SwTestHarness;
let driver: Driver;
beforeEach(async () => {
// Fire up the client.
mock = new MockServiceWorkerContainer();
comm = new NgswCommChannel(mock as any);
scope = new SwTestHarnessBuilder().withServerState(server).build();
driver = new Driver(scope, scope, new CacheDatabase(scope, scope));
scope.clients.add('default');
scope.clients.getMock('default')!.queue.subscribe(msg => {
mock.sendMessage(msg);
});
mock.messages.subscribe(msg => {
scope.handleMessage(msg, 'default');
});
mock.notificationClicks.subscribe((msg: Object) => {
scope.handleMessage(msg, 'default');
});
mock.setupSw();
reg = mock.mockRegistration!;
await Promise.all(scope.handleFetch(new MockRequest('/only.txt'), 'default'));
await driver.initialized;
});
it('communicates back and forth via update check', async () => {
const update = new SwUpdate(comm);
await update.checkForUpdate();
});
it('detects an actual update', async () => {
const update = new SwUpdate(comm);
scope.updateServerState(serverUpdate);
const gotUpdateNotice = (async () => {
const notice = await obsToSinglePromise(update.available);
})();
await update.checkForUpdate();
await gotUpdateNotice;
});
it('receives push message notifications', async () => {
const push = new SwPush(comm);
scope.updateServerState(serverUpdate);
const gotPushNotice = (async () => {
const message = await obsToSinglePromise(push.messages);
expect(message).toEqual({
test: 'success',
});
})();
await scope.handlePush({
test: 'success',
});
await gotPushNotice;
});
it('receives push message click events', async () => {
const push = new SwPush(comm);
scope.updateServerState(serverUpdate);
const gotNotificationClick = (async () => {
const event: any = await obsToSinglePromise(push.notificationClicks);
expect(event.action).toEqual('clicked');
expect(event.notification.title).toEqual('This is a test');
})();
await scope.handleClick({title: 'This is a test'}, 'clicked');
await gotNotificationClick;
});
});
})();