all files / formatters/ user-timings.js

100% Statements 14/14
100% Branches 5/5
100% Functions 1/1
100% Lines 14/14
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54                                            13×                                    
/**
 * @license
 * Copyright 2016 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.
 */
 
'use strict';
 
const Formatter = require('./formatter');
const path = require('path');
const fs = require('fs');
const html = fs.readFileSync(path.join(__dirname, 'partials/user-timings.html'), 'utf8');
 
class UserTimings extends Formatter {
  static getFormatter(type) {
    switch (type) {
      case 'pretty':
        return events => {
          if (!Array.isArray(events)) {
            return '';
          }
 
          const output = `    - performance.measure events created by the site\n` +
          events.reduce((prev, event) => {
            return prev + `      - Measure: ${event.name}\n` +
            '        - Duration: ' + event.duration + '\n';
          }, '');
 
          return output;
        };
 
      case 'html':
        // Returns a handlebars string to be used by the Report.
        return html;
 
      default:
        throw new Error('Unknown formatter type');
    }
  }
}
 
module.exports = UserTimings;