puppeteer/test/utils.js

110 lines
2.9 KiB
JavaScript
Raw Normal View History

/**
* 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.
*/
const fs = require('fs');
const path = require('path');
const PROJECT_ROOT = fs.existsSync(path.join(__dirname, '..', 'package.json')) ? path.join(__dirname, '..') : path.join(__dirname, '..', '..');
const utils = module.exports = {
/**
* @return {string}
*/
projectRoot: function() {
return PROJECT_ROOT;
},
/**
* @return {*}
*/
requireRoot: function(name) {
return require(path.join(PROJECT_ROOT, name));
},
2017-06-21 20:51:06 +00:00
/**
2017-06-21 20:58:49 +00:00
* @param {!Page} page
* @param {string} frameId
* @param {string} url
*/
2017-06-21 20:51:06 +00:00
attachFrame: async function(page, frameId, url) {
await page.evaluate(attachFrame, frameId, url);
2017-06-21 20:51:06 +00:00
function attachFrame(frameId, url) {
const frame = document.createElement('iframe');
2017-06-21 20:51:06 +00:00
frame.src = url;
frame.id = frameId;
document.body.appendChild(frame);
return new Promise(x => frame.onload = x);
}
},
2017-06-21 20:51:06 +00:00
/**
2017-06-21 20:58:49 +00:00
* @param {!Page} page
* @param {string} frameId
*/
2017-06-21 20:51:06 +00:00
detachFrame: async function(page, frameId) {
await page.evaluate(detachFrame, frameId);
2017-06-21 20:51:06 +00:00
function detachFrame(frameId) {
const frame = document.getElementById(frameId);
2017-06-21 20:51:06 +00:00
frame.remove();
}
},
2017-06-21 20:51:06 +00:00
/**
2017-06-21 20:58:49 +00:00
* @param {!Page} page
* @param {string} frameId
* @param {string} url
*/
2017-06-21 20:51:06 +00:00
navigateFrame: async function(page, frameId, url) {
await page.evaluate(navigateFrame, frameId, url);
2017-06-21 20:51:06 +00:00
function navigateFrame(frameId, url) {
const frame = document.getElementById(frameId);
2017-06-21 20:51:06 +00:00
frame.src = url;
return new Promise(x => frame.onload = x);
}
},
2017-06-21 20:51:06 +00:00
/**
2017-06-21 20:58:49 +00:00
* @param {!Frame} frame
* @param {string=} indentation
* @return {string}
*/
2017-06-21 20:51:06 +00:00
dumpFrames: function(frame, indentation) {
indentation = indentation || '';
let result = indentation + frame.url().replace(/:\d{4}\//, ':<PORT>/');
for (const child of frame.childFrames())
2017-06-21 20:51:06 +00:00
result += '\n' + utils.dumpFrames(child, ' ' + indentation);
return result;
},
/**
* @param {!EventEmitter} emitter
* @param {string} eventName
* @return {!Promise<!Object>}
*/
waitEvent: function(emitter, eventName, predicate = () => true) {
return new Promise(fulfill => {
emitter.on(eventName, function listener(event) {
if (!predicate(event))
return;
emitter.removeListener(eventName, listener);
fulfill(event);
});
});
},
};