unit-testing - ng 测试 - 意外 token 'const'

Question

我使用 angular-cli 创建了一个应用程序。现在我正在尝试运行一些单元测试，但我想用 PhantomJS 运行它们而不是 Chrome。所以我将 package.json 更改为如下所示:

{
  "name": "frontend",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve",
    "start-lite": "tsc && concurrently \"npm run tsc:w\" \"npm run lite\"",
    "lite": "lite-server",
    "build": "ng build",
    "test": "ng test",
    "lint": "ng lint",
    "tsc": "tsc",
    "tsc:w": "tsc -w",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "^2.4.0",
    "@angular/compiler": "^2.4.0",
    "@angular/core": "^2.4.0",
    "@angular/forms": "^2.4.0",
    "@angular/http": "^2.4.0",
    "@angular/platform-browser": "^2.4.0",
    "@angular/platform-browser-dynamic": "^2.4.0",
    "@angular/router": "^3.4.0",
    "angular2-wizard": "^0.3.0",
    "bootstrap": "^3.3.7",
    "core-js": "^2.4.1",
    "karma-phantomjs-launcher": "^1.0.4",
    "ng2-bootstrap": "^1.4.0",
    "rxjs": "^5.1.0",
    "video.js": "^5.17.0",
    "zone.js": "^0.7.6"
  },
  "devDependencies": {
    "@angular/cli": "1.0.0-rc.1",
    "@angular/compiler-cli": "^2.4.0",
    "@types/jasmine": "2.5.38",
    "@types/node": "~6.0.60",
    "codelyzer": "~2.0.0",
    "concurrently": "^2.2.0",
    "jasmine-core": "~2.5.2",
    "jasmine-spec-reporter": "~3.2.0",
    "karma": "~1.4.1",
    "karma-chrome-launcher": "~2.0.0",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^0.2.0",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "lite-server": "^2.2.2",
    "phantomjs": "^2.1.7",
    "protractor": "~5.1.0",
    "ts-node": "~2.0.0",
    "tslint": "~4.4.2",
    "typescript": "~2.0.0"
  }
}

---

karma 配置

karma.conf.js ->

module.exports = function (config) {
  config.set({
    basePath: '',
    frameworks: ['jasmine', '@angular/cli'],
    plugins: [
      require('karma-jasmine'),
      require('karma-phantomjs-launcher'),
      require('karma-jasmine-html-reporter'),
      require('karma-coverage-istanbul-reporter'),
      require('@angular/cli/plugins/karma')
    ],
    client:{
      clearContext: false // leave Jasmine Spec Runner output visible in browser
    },
    files: [
      { pattern: './src/test.ts', watched: false }
    ],
    preprocessors: {
      './src/test.ts': ['@angular/cli']
    },
    mime: {
      'text/x-typescript': ['ts','tsx']
    },
    coverageIstanbulReporter: {
      reports: [ 'html', 'lcovonly' ],
      fixWebpackSourcePaths: true
    },
    angularCli: {
      environment: 'dev'
    },
    reporters: config.angularCli && config.angularCli.codeCoverage
              ? ['progress', 'coverage-istanbul']
              : ['progress', 'kjhtml'],
    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: true,
    browsers: ['PhantomJS'],
    singleRun: false
  });
};

---

错误

但现在的问题是，每次我运行测试时都会出现错误:

PhantomJS 2.1.1 (Windows 8 0.0.0) ERROR
  SyntaxError: Unexpected token 'const'
  at webpack:///src/app/app.component.ts:1:0 <- src/test.ts:63183

PhantomJS 2.1.1 (Windows 8 0.0.0) ERROR
  SyntaxError: Unexpected token 'const'
  at webpack:///src/app/app.component.ts:1:0 <- src/test.ts:63183

如果需要，我可以提供 src/test.ts 但它只是一个基本的单元测试。我查看了所有文件并将 const 替换为 var。遗憾的是，这并没有解决任何问题。

---

我调查过但无助于找到解决方案的问题:

• SyntaxError: Unexpected token const { in node.js

• SyntaxError: Unexpected token 'const' (with Vue, Karma, Webpack, PhantomJS)

• Unexpected Token after const

• SyntaxError: Unexpected token 'const' for testing.es5.js

• Running "ng" causes "Unexpected token ..."

Answer 1

原来在 src/tsconfig.spec.json 中将 es6 更改为 es5 解决了这个问题。

(以为我只有 1 个 tsconfig.json，之前从未使用过 angular/cli。