272 lines
9.6 KiB
TypeScript
272 lines
9.6 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {CacheDatabase} from '../src/db-cache';
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import {Driver} from '../src/driver';
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import {Manifest} from '../src/manifest';
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import {MockRequest} from '../testing/fetch';
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import {MockFileSystemBuilder, MockServerStateBuilder, tmpHashTableForFs} from '../testing/mock';
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import {SwTestHarness, SwTestHarnessBuilder} from '../testing/scope';
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import {async_beforeEach, async_fit, async_it} from './async';
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(function() {
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// Skip environments that don't support the minimum APIs needed to run the SW tests.
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if (!SwTestHarness.envIsSupported()) {
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return;
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}
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const dist = new MockFileSystemBuilder()
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.addFile('/foo.txt', 'this is foo')
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.addFile('/bar.txt', 'this is bar')
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.addFile('/api/test', 'version 1')
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.addFile('/api/a', 'version A')
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.addFile('/api/b', 'version B')
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.addFile('/api/c', 'version C')
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.addFile('/api/d', 'version D')
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.addFile('/api/e', 'version E')
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.addFile('/fresh/data', 'this is fresh data')
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.addFile('/refresh/data', 'this is some data')
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.build();
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const distUpdate = new MockFileSystemBuilder()
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.addFile('/foo.txt', 'this is foo v2')
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.addFile('/bar.txt', 'this is bar')
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.addFile('/api/test', 'version 2')
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.addFile('/fresh/data', 'this is fresher data')
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.addFile('/refresh/data', 'this is refreshed data')
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.build();
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const manifest: Manifest = {
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configVersion: 1,
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timestamp: 1234567890123,
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index: '/index.html',
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assetGroups: [
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{
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name: 'assets',
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installMode: 'prefetch',
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updateMode: 'prefetch',
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urls: [
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'/foo.txt',
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'/bar.txt',
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],
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patterns: [],
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},
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],
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dataGroups: [
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{
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name: 'testPerf',
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maxSize: 3,
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strategy: 'performance',
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patterns: ['^/api/.*$'],
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timeoutMs: 1000,
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maxAge: 5000,
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version: 1,
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},
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{
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name: 'testRefresh',
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maxSize: 3,
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strategy: 'performance',
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patterns: ['^/refresh/.*$'],
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timeoutMs: 1000,
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refreshAheadMs: 1000,
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maxAge: 5000,
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version: 1,
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},
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{
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name: 'testFresh',
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maxSize: 3,
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strategy: 'freshness',
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patterns: ['^/fresh/.*$'],
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timeoutMs: 1000,
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maxAge: 5000,
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version: 1,
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},
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],
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navigationUrls: [],
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hashTable: tmpHashTableForFs(dist),
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};
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const seqIncreasedManifest: Manifest = {
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...manifest,
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dataGroups: [
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{
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...manifest.dataGroups ![0],
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version: 2,
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},
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manifest.dataGroups ![1],
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manifest.dataGroups ![2],
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],
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};
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const server = new MockServerStateBuilder().withStaticFiles(dist).withManifest(manifest).build();
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const serverUpdate =
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new MockServerStateBuilder().withStaticFiles(distUpdate).withManifest(manifest).build();
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const serverSeqUpdate = new MockServerStateBuilder()
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.withStaticFiles(distUpdate)
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.withManifest(seqIncreasedManifest)
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.build();
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const scope = new SwTestHarnessBuilder().withServerState(server).build();
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describe('data cache', () => {
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let scope: SwTestHarness;
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let driver: Driver;
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async_beforeEach(async() => {
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server.clearRequests();
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scope = new SwTestHarnessBuilder().withServerState(server).build();
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driver = new Driver(scope, scope, new CacheDatabase(scope, scope));
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// Initialize.
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expect(await makeRequest(scope, '/foo.txt')).toEqual('this is foo');
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await driver.initialized;
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server.reset();
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serverUpdate.reset();
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});
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describe('in performance mode', () => {
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async_it('names the caches correctly', async() => {
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expect(await makeRequest(scope, '/api/test')).toEqual('version 1');
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const keys = await scope.caches.keys();
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expect(keys.every(key => key.startsWith('ngsw:/:'))).toEqual(true);
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});
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async_it('caches a basic request', async() => {
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expect(await makeRequest(scope, '/api/test')).toEqual('version 1');
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server.assertSawRequestFor('/api/test');
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scope.advance(1000);
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expect(await makeRequest(scope, '/api/test')).toEqual('version 1');
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server.assertNoOtherRequests();
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});
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async_it('refreshes after awhile', async() => {
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expect(await makeRequest(scope, '/api/test')).toEqual('version 1');
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server.clearRequests();
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scope.advance(10000);
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scope.updateServerState(serverUpdate);
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expect(await makeRequest(scope, '/api/test')).toEqual('version 2');
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});
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async_it('expires the least recently used entry', async() => {
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expect(await makeRequest(scope, '/api/a')).toEqual('version A');
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expect(await makeRequest(scope, '/api/b')).toEqual('version B');
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expect(await makeRequest(scope, '/api/c')).toEqual('version C');
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expect(await makeRequest(scope, '/api/d')).toEqual('version D');
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expect(await makeRequest(scope, '/api/e')).toEqual('version E');
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server.clearRequests();
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expect(await makeRequest(scope, '/api/c')).toEqual('version C');
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expect(await makeRequest(scope, '/api/d')).toEqual('version D');
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expect(await makeRequest(scope, '/api/e')).toEqual('version E');
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server.assertNoOtherRequests();
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expect(await makeRequest(scope, '/api/a')).toEqual('version A');
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expect(await makeRequest(scope, '/api/b')).toEqual('version B');
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server.assertSawRequestFor('/api/a');
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server.assertSawRequestFor('/api/b');
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server.assertNoOtherRequests();
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});
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async_it('does not carry over cache with new version', async() => {
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expect(await makeRequest(scope, '/api/test')).toEqual('version 1');
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scope.updateServerState(serverSeqUpdate);
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expect(await driver.checkForUpdate()).toEqual(true);
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await driver.updateClient(await scope.clients.get('default'));
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expect(await makeRequest(scope, '/api/test')).toEqual('version 2');
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});
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});
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describe('in freshness mode', () => {
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async_it('goes to the server first', async() => {
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expect(await makeRequest(scope, '/fresh/data')).toEqual('this is fresh data');
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server.assertSawRequestFor('/fresh/data');
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server.clearRequests();
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expect(await makeRequest(scope, '/fresh/data')).toEqual('this is fresh data');
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server.assertSawRequestFor('/fresh/data');
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server.assertNoOtherRequests();
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scope.updateServerState(serverUpdate);
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expect(await makeRequest(scope, '/fresh/data')).toEqual('this is fresher data');
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serverUpdate.assertSawRequestFor('/fresh/data');
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serverUpdate.assertNoOtherRequests();
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});
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async_it('falls back on the cache when server times out', async() => {
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expect(await makeRequest(scope, '/fresh/data')).toEqual('this is fresh data');
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server.assertSawRequestFor('/fresh/data');
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server.clearRequests();
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scope.updateServerState(serverUpdate);
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serverUpdate.pause();
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const [res, done] = makePendingRequest(scope, '/fresh/data');
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await serverUpdate.nextRequest;
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// Since the network request doesn't return within the timeout of 1,000ms,
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// this should return cached data.
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scope.advance(2000);
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expect(await res).toEqual('this is fresh data');
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// Unpausing allows the worker to continue with caching.
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serverUpdate.unpause();
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await done;
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serverUpdate.pause();
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const [res2, done2] = makePendingRequest(scope, '/fresh/data');
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await serverUpdate.nextRequest;
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scope.advance(2000);
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expect(await res2).toEqual('this is fresher data');
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});
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async_it('refreshes ahead', async() => {
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server.assertNoOtherRequests();
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serverUpdate.assertNoOtherRequests();
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expect(await makeRequest(scope, '/refresh/data')).toEqual('this is some data');
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server.assertSawRequestFor('/refresh/data');
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server.clearRequests();
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expect(await makeRequest(scope, '/refresh/data')).toEqual('this is some data');
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server.assertNoOtherRequests();
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scope.updateServerState(serverUpdate);
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scope.advance(1500);
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expect(await makeRequest(scope, '/refresh/data')).toEqual('this is some data');
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serverUpdate.assertSawRequestFor('/refresh/data');
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expect(await makeRequest(scope, '/refresh/data')).toEqual('this is refreshed data');
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serverUpdate.assertNoOtherRequests();
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});
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});
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});
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})();
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async function makeRequest(scope: SwTestHarness, url: string, clientId?: string):
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Promise<string|null> {
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const [resPromise, done] = scope.handleFetch(new MockRequest(url), clientId || 'default');
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await done;
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const res = await resPromise;
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if (res !== undefined) {
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return res.text();
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}
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return null;
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}
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function makePendingRequest(scope: SwTestHarness, url: string, clientId?: string):
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[Promise<string|null>, Promise<void>] {
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const [resPromise, done] = scope.handleFetch(new MockRequest(url), clientId || 'default');
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return [
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(async() => {
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const res = await resPromise;
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if (res !== undefined) {
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return res.text();
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}
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return null;
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})(),
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done
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];
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}
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