text: /*---------------------------------------------------------------------------------------------
   *  Copyright (c) Microsoft Corporation. All rights reserved.
   *  Licensed under the MIT License. See License.txt in the project root for license information.
   *--------------------------------------------------------------------------------------------*/
  
  const { app, BrowserWindow, ipcMain } = require('electron');
  const { tmpdir } = require('os');
  const { join } = require('path');
  const path = require('path');
  const mocha = require('mocha');
  const events = require('events');
  
  const optimist = require('optimist')
  	.describe('grep', 'only run tests matching <pattern>').alias('grep', 'g').alias('grep', 'f').string('grep')
  	.describe('run', 'only run tests from <file>').string('run')
  	.describe('runGrep', 'only run tests matching <file_pattern>').boolean('runGrep')
  	.describe('build', 'run with build output (out-build)').boolean('build')
  	.describe('coverage', 'generate coverage report').boolean('coverage')
  	.describe('debug', 'open dev tools, keep window open, reuse app data').string('debug')
  	.describe('reporter', 'the mocha reporter').string('reporter').default('reporter', 'spec')
  	.describe('help', 'show the help').alias('help', 'h');
  
  const argv = optimist.argv;
  
  if (argv.help) {
  	optimist.showHelp();
  	process.exit(0);
  }
  
  if (!argv.debug) {
  	app.setPath('userData', join(tmpdir(), `vscode-tests-${Date.now()}`));
  }
  
  function deserializeSuite(suite) {
  	return {
  		title: suite.title,
  		fullTitle: () => suite.fullTitle,
  		timeout: () => suite.timeout,
  		retries: () => suite.retries,
  		enableTimeouts: () => suite.enableTimeouts,
  		slow: () => suite.slow,
  		bail: () => suite.bail,
  	};
  }
  
  function deserializeRunnable(runnable) {
  	return {
  		title: runnable.title,
  		fullTitle: () => runnable.fullTitle,
  		async: runnable.async,
  		slow: () => runnable.slow,
  		speed: runnable.speed,
  		duration: runnable.duration
  	};
  }
  
  function deserializeError(err) {
  	const inspect = err.inspect;
  	err.inspect = () => inspect;
  	return err;
  }
  
  class IPCRunner extends events.EventEmitter {
  
  	constructor() {
  		super();
  
  		this.didFail = false;
  
  		ipcMain.on('start', () => this.emit('start'));
  		ipcMain.on('end', () => this.emit('end'));
  		ipcMain.on('suite', (e, suite) => this.emit('suite', deserializeSuite(suite)));
  		ipcMain.on('suite end', (e, suite) => this.emit('suite end', deserializeSuite(suite)));
  		ipcMain.on('test', (e, test) => this.emit('test', deserializeRunnable(test)));
  		ipcMain.on('test end', (e, test) => this.emit('test end', deserializeRunnable(test)));
  		ipcMain.on('hook', (e, hook) => this.emit('hook', deserializeRunnable(hook)));
  		ipcMain.on('hook end', (e, hook) => this.emit('hook end', deserializeRunnable(hook)));
  		ipcMain.on('pass', (e, test) => this.emit('pass', deserializeRunnable(test)));
  		ipcMain.on('fail', (e, test, err) => {
  			this.didFail = true;
  			this.emit('fail', deserializeRunnable(test), deserializeError(err));
  		});
  		ipcMain.on('pending', (e, test) => this.emit('pending', deserializeRunnable(test)));
  	}
  }
  
  app.on('ready', () => {
  
  	const win = new BrowserWindow({
  		height: 600,
  		width: 800,
  		show: false,
  		webPreferences: {
  			backgroundThrottling: false,
  			webSecurity: false
  		}
  	});
  
  	win.webContents.on('did-finish-load', () => {
  		if (argv.debug) {
  			win.show();
  			win.webContents.openDevTools('right');
  		}
  		win.webContents.send('run', argv);
  	});
  
  	win.loadURL(`file://${__dirname}/renderer.html`);
  
  	const reporterPath = path.join(path.dirname(require.resolve('mocha')), 'lib', 'reporters', argv.reporter);
  	let Reporter;
  
  	try {
  		Reporter = require(reporterPath);
  	} catch (err) {
  		console.warn(`could not load reporter: ${argv.reporter}`);
  		Reporter = mocha.reporters.Spec;
  	}
  
  	const runner = new IPCRunner();
  	new Reporter(runner);
  
  	if (!argv.debug) {
  		ipcMain.on('all done', () => app.exit(runner.didFail ? 1 : 0));
  	}
  });
  