angular-docs-cn/modules/@angular/benchpress/test/firefox_extension/spec.ts

/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

var assertEventsContainsName = function(events: any[], eventName: string) {
  var found = false;
  for (var i = 0; i < events.length; ++i) {
    if (events[i].name == eventName) {
      found = true;
      break;
    }
  }
  expect(found).toBeTruthy();
};

describe('firefox extension', function() {
  var TEST_URL = 'http://localhost:8001/playground/src/hello_world/index.html';

  it('should measure performance', function() {
    browser.sleep(3000);  // wait for extension to load

    browser.driver.get(TEST_URL);

    browser.executeScript('window.startProfiler()').then(function() {
      console.log('started measuring perf');
    });

    browser.executeAsyncScript('setTimeout(arguments[0], 1000);');
    browser.executeScript('window.forceGC()');

    browser.executeAsyncScript('var cb = arguments[0]; window.getProfile(cb);')
        .then(function(profile: any) {
          assertEventsContainsName(profile, 'gc');
          assertEventsContainsName(profile, 'script');
        });
  });
});