text: /**
   * @license
   * Copyright 2017 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.
   */
  
  /**
   * @fileoverview Gathers console deprecation and intervention warnings logged by Chrome.
   */
  
  'use strict';
  
  const Gatherer = require('./gatherer');
  
  class ChromeConsoleMessages extends Gatherer {
  
    constructor() {
      super();
      this._logEntries = [];
      this._onConsoleEntryAdded = this.onConsoleEntry.bind(this);
    }
  
    onConsoleEntry(entry) {
      this._logEntries.push(entry);
    }
  
    beforePass(options) {
      options.driver.on('Log.entryAdded', this._onConsoleEntryAdded);
      return options.driver.sendCommand('Log.enable');
    }
  
    afterPass(options) {
      options.driver.off('Log.entryAdded', this._onConsoleEntryAdded);
      return options.driver.sendCommand('Log.disable')
          .then(_ => this._logEntries);
    }
  }
  
  module.exports = ChromeConsoleMessages;
  