puppeteer/test/fixtures.spec.js

/**
 * Copyright 2019 Google Inc. All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

const expect = require('expect');
const {getTestState} = require('./mocha-utils');

const path = require('path');

describe('Fixtures', function() {
  itFailsFirefox('dumpio option should work with pipe option ', async() => {
    const {defaultBrowserOptions, puppeteerPath} = getTestState();

    let dumpioData = '';
    const {spawn} = require('child_process');
    const options = Object.assign({}, defaultBrowserOptions, {pipe: true, dumpio: true});
    const res = spawn('node',
        [path.join(__dirname, 'fixtures', 'dumpio.js'), puppeteerPath, JSON.stringify(options)]);
    res.stderr.on('data', data => dumpioData += data.toString('utf8'));
    await new Promise(resolve => res.on('close', resolve));
    expect(dumpioData).toContain('message from dumpio');
  });
  it('should dump browser process stderr', async() => {
    const {defaultBrowserOptions, puppeteerPath} = getTestState();

    let dumpioData = '';
    const {spawn} = require('child_process');
    const options = Object.assign({}, defaultBrowserOptions, {dumpio: true});
    const res = spawn('node',
        [path.join(__dirname, 'fixtures', 'dumpio.js'), puppeteerPath, JSON.stringify(options)]);
    res.stderr.on('data', data => dumpioData += data.toString('utf8'));
    await new Promise(resolve => res.on('close', resolve));
    expect(dumpioData).toContain('DevTools listening on ws://');
  });
  it('should close the browser when the node process closes', async() => {
    const {defaultBrowserOptions, puppeteerPath, puppeteer} = getTestState();

    const {spawn, execSync} = require('child_process');
    const options = Object.assign({}, defaultBrowserOptions, {
      // Disable DUMPIO to cleanly read stdout.
      dumpio: false,
    });
    const res = spawn('node', [path.join(__dirname, 'fixtures', 'closeme.js'), puppeteerPath, JSON.stringify(options)]);
    let wsEndPointCallback;
    const wsEndPointPromise = new Promise(x => wsEndPointCallback = x);
    let output = '';
    res.stdout.on('data', data => {
      output += data;
      if (output.indexOf('\n'))
        wsEndPointCallback(output.substring(0, output.indexOf('\n')));
    });
    const browser = await puppeteer.connect({browserWSEndpoint: await wsEndPointPromise});
    const promises = [
      new Promise(resolve => browser.once('disconnected', resolve)),
      new Promise(resolve => res.on('close', resolve))
    ];
    if (process.platform === 'win32')
      execSync(`taskkill /pid ${res.pid} /T /F`);
    else
      process.kill(res.pid);
    await Promise.all(promises);
  });
});