Angular2 Quckstart种子：如何让Karma以正确的.js扩展名（不带404）加载注入的打字稿？

Question

我正在使用Angular2 快速入门种子项目... Karma很好地加载了所有默认规范。 当我添加一个名为src/ng-testing/router-stubs.ts的模拟src/ng-testing/router-stubs.ts可以编译为.js 。 但是，当我运行Karma时，得到了404，因为它试图加载不带扩展名的/base/ng-testing/router-stubs 。

由于ng-testing/正确存在于我的src/因此应将其包含在因果配置中的通配模式中。 src/**/*.js

我只是将其与规范文件中的常规angular / typescript导入一起导入（加载并编译为.js即可）：

import { AppComponent } from './app.component';
import { RouterLinkStubDirective, RouterOutletStubComponent } from '../ng-testing/router-stubs';

如何使其加载扩展程序？ 不管我将这个文件放在什么文件夹中， testing/或src/ng-testing/它仍然尝试加载无扩展名。

如果需要，则进行Karma conf：

 module.exports = function(config) {

  var appBase    = 'src/';       // transpiled app JS and map files
  var appSrcBase = appBase;      // app source TS files

  // Testing helpers (optional) are conventionally in a folder called `testing`
  var testingBase    = 'testing/'; // transpiled test JS and map files
  var testingSrcBase = 'testing/'; // test source TS files

  config.set({
    basePath: '',
    frameworks: ['jasmine'],

    plugins: [
      require('karma-jasmine'),
      require('karma-chrome-launcher'),
      require('karma-jasmine-html-reporter')
    ],

    client: {
      builtPaths: [appBase, testingBase], // add more spec base paths as needed
      clearContext: false // leave Jasmine Spec Runner output visible in browser
    },

    customLaunchers: {
      // From the CLI. Not used here but interesting
      // chrome setup for travis CI using chromium
      Chrome_travis_ci: {
        base: 'Chrome',
        flags: ['--no-sandbox']
      }
    },

    files: [
      // System.js for module loading
      'node_modules/systemjs/dist/system.src.js',

      // Polyfills
      'node_modules/core-js/client/shim.js',

      // zone.js
      'node_modules/zone.js/dist/zone.js',
      'node_modules/zone.js/dist/long-stack-trace-zone.js',
      'node_modules/zone.js/dist/proxy.js',
      'node_modules/zone.js/dist/sync-test.js',
      'node_modules/zone.js/dist/jasmine-patch.js',
      'node_modules/zone.js/dist/async-test.js',
      'node_modules/zone.js/dist/fake-async-test.js',

      // RxJs
      { pattern: 'node_modules/rxjs/**/*.js', included: false, watched: false },
      { pattern: 'node_modules/rxjs/**/*.js.map', included: false, watched: false },

      // Paths loaded via module imports:
      // Angular itself
      { pattern: 'node_modules/@angular/**/*.js', included: false, watched: false },
      { pattern: 'node_modules/@angular/**/*.js.map', included: false, watched: false },

      { pattern: appBase + 'systemjs.config.js', included: false, watched: false },
      { pattern: appBase + 'systemjs.config.extras.js', included: false, watched: false },
      'karma-test-shim.js', // optionally extend SystemJS mapping e.g., with barrels

      // transpiled application & spec code paths loaded via module imports
      { pattern: appBase + '**/*.js', included: false, watched: true },
      { pattern: testingBase + '**/*.js', included: false, watched: true },


      // Asset (HTML & CSS) paths loaded via Angular's component compiler
      // (these paths need to be rewritten, see proxies section)
      { pattern: appBase + '**/*.html', included: false, watched: true },
      { pattern: appBase + '**/*.css', included: false, watched: true },

      // Paths for debugging with source maps in dev tools
      { pattern: appBase + '**/*.ts', included: false, watched: false },
      { pattern: appBase + '**/*.js.map', included: false, watched: false },
      { pattern: testingSrcBase + '**/*.ts', included: false, watched: false },
      { pattern: testingBase + '**/*.js.map', included: false, watched: false}
    ],

    // Proxied base paths for loading assets
    proxies: {
      // required for modules fetched by SystemJS
      '/base/src/node_modules/': '/base/node_modules/'
    },

    exclude: [],
    preprocessors: {},
    reporters: ['progress', 'kjhtml'],

    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: true,
    browsers: ['Chrome'],
    singleRun: false
  })
}

Answer 1

那是system.config.js 。 它只是为应用程序路径设置环境默认扩展名。 可以将测试文件夹放在其中，也可以包括带有默认扩展名的src软件包。

packages: {
  app: {
    defaultExtension: 'js'
  },
  rxjs: {
    defaultExtension: 'js'
  }
}