add headless chrome to ci tests

Author: zloirock

Gruntfile.js

@@ -4,6 +4,9 @@ const fs = require('fs');
 const mkdirp = require('mkdirp');
 const path = require('path');
 const config = require('./packages/core-js-builder/config');
+
+process.env.CHROME_BIN = require('puppeteer').executablePath();
+
 module.exports = grunt => {
   grunt.loadNpmTasks('grunt-contrib-clean');
   grunt.loadNpmTasks('grunt-contrib-copy');
@@ -117,7 +120,7 @@ module.exports = grunt => {
       options: {
         frameworks: ['qunit'],
         basePath: '.',
-        browsers: ['PhantomJS'],
+        browsers: ['ChromeHeadless', 'PhantomJS'],
         singleRun: true,
       },
       tests: {

package.json

@@ -32,13 +32,15 @@
     "grunt-karma": "^3.0.0",
     "grunt-webpack": "^3.1.3",
     "karma": "^3.1.1",
+    "karma-chrome-launcher": "^2.2.0",
     "karma-phantomjs-launcher": "1.0.x",
     "karma-qunit": "^2.1.0",
     "lerna": "2.11.0",
     "mkdirp": "^0.5.1",
     "moon-unit": "^0.2.2",
     "phantomjs-prebuilt": "2.1.x",
     "promises-aplus-tests": "^2.1.2",
+    "puppeteer": "1.9.0",
     "qunit": "2.8.x",
     "temp": "^0.8.3",
     "webpack": "^4.25.1"