angular-docs-cn/packages/service-worker/config/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 {sha1} from '../../cli/sha1';
import {Filesystem} from '../src/filesystem';
export class MockFilesystem implements Filesystem {
private files = new Map<string, string>();
constructor(files: {[name: string]: string | undefined}) {
Object.keys(files).forEach(path => this.files.set(path, files[path] !));
}
async list(dir: string): Promise<string[]> {
return Array.from(this.files.keys()).filter(path => path.startsWith(dir));
}
async read(path: string): Promise<string> { return this.files.get(path) !; }
async hash(path: string): Promise<string> { return sha1(this.files.get(path) !); }
async write(path: string, contents: string): Promise<void> { this.files.set(path, contents); }
}