chore(e2e): remove npm err output from e2e (#594)

Author: filipesilva

addon/ng2/commands/e2e.js renamed to addon/ng2/commands/e2e.ts

@@ -1,16 +1,13 @@
-/* jshint node: true */
-'use strict';
-
-var Command = require('ember-cli/lib/models/command');
-const config = require('../models/config');
-var E2ETask = require('../tasks/e2e');
+import * as Command from 'ember-cli/lib/models/command';
+import * as E2ETask from '../tasks/e2e';
+import {CliConfig} from '../models/config';
 
 module.exports = Command.extend({
   name: 'e2e',
   description: 'Run e2e tests in existing project',
   works: 'insideProject',
   run: function () {
-    this.project.ngConfig = this.project.ngConfig || config.CliConfig.fromProject();
+    this.project.ngConfig = this.project.ngConfig || CliConfig.fromProject();
 
     var e2eTask = new E2ETask({
       ui: this.ui,

addon/ng2/tasks/e2e.js

@@ -0,0 +1,22 @@
+import * as Promise from 'ember-cli/lib/ext/promise';
+import * as Task from 'ember-cli/lib/models/task';
+import * as chalk from 'chalk';
+import {exec} from 'child_process';
+
+module.exports = Task.extend({
+  run: function () {
+    var ui = this.ui;
+
+    return new Promise((resolve) => {
+      exec(`npm run e2e -- ${this.project.ngConfig.e2e.protractor.config}`, (err, stdout) => {
+        ui.writeLine(stdout);
+        if (err) {
+          ui.writeLine(chalk.red('Some end-to-end tests failed, see above.'));
+        } else {
+          ui.writeLine(chalk.green('All end-to-end tests pass.'));
+        }
+        resolve();
+      });
+    });
+  }
+});