/**
* Copyright 2018 Google Inc. All rights reserved.
* Modifications copyright (c) Microsoft Corporation.
*
* 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 utils = require('./utils');
/**
* @type {PageTestSuite}
*/
module.exports.describe = function({testRunner, expect, product, playwright, FFOX, CHROMIUM, WEBKIT}) {
const {describe, xdescribe, fdescribe} = testRunner;
const {it, fit, xit, dit} = testRunner;
const {beforeAll, beforeEach, afterAll, afterEach} = testRunner;
describe('Page.waitFor', function() {
it('should wait for selector', async({page, server}) => {
let found = false;
const waitFor = page.waitFor('div').then(() => found = true);
await page.goto(server.EMPTY_PAGE);
expect(found).toBe(false);
await page.goto(server.PREFIX + '/grid.html');
await waitFor;
expect(found).toBe(true);
});
it('should wait for an xpath', async({page, server}) => {
let found = false;
const waitFor = page.waitFor('//div').then(() => found = true);
await page.goto(server.EMPTY_PAGE);
expect(found).toBe(false);
await page.goto(server.PREFIX + '/grid.html');
await waitFor;
expect(found).toBe(true);
});
it('should not allow you to select an element with single slash xpath', async({page, server}) => {
await page.setContent(`some text
`);
let error = null;
await page.waitFor('/html/body/div').catch(e => error = e);
expect(error).toBeTruthy();
});
it('should timeout', async({page, server}) => {
const startTime = Date.now();
const timeout = 42;
await page.waitFor(timeout);
expect(Date.now() - startTime).not.toBeLessThan(timeout / 2);
});
it('should work with multiline body', async({page, server}) => {
const result = await page.waitForFunction(`
(() => true)()
`);
expect(await result.jsonValue()).toBe(true);
});
it('should wait for predicate', async({page, server}) => {
await Promise.all([
page.waitFor(() => window.innerWidth < 130), // Windows doesn't like windows below 120px wide
page.setViewportSize({width: 10, height: 10}),
]);
});
it('should throw when unknown type', async({page, server}) => {
let error = null;
await page.waitFor({foo: 'bar'}).catch(e => error = e);
expect(error.message).toContain('Unsupported target type');
});
it('should wait for predicate with arguments', async({page, server}) => {
await page.waitFor(({arg1, arg2}) => arg1 + arg2 === 3, {}, { arg1: 1, arg2: 2});
});
});
describe('Frame.waitForFunction', function() {
it('should accept a string', async({page, server}) => {
const watchdog = page.waitForFunction('window.__FOO === 1');
await page.evaluate(() => window.__FOO = 1);
await watchdog;
});
it('should work when resolved right before execution context disposal', async({page, server}) => {
await page.addInitScript(() => window.__RELOADED = true);
await page.waitForFunction(() => {
if (!window.__RELOADED)
window.location.reload();
return true;
});
});
it('should poll on interval', async({page, server}) => {
const polling = 100;
const timeDelta = await page.waitForFunction(() => {
if (!window.__startTime) {
window.__startTime = Date.now();
return false;
}
return Date.now() - window.__startTime;
}, {}, {polling});
expect(timeDelta).not.toBeLessThan(polling);
});
it('should poll on mutation', async({page, server}) => {
let success = false;
const watchdog = page.waitForFunction(() => window.__FOO === 'hit', {}, {polling: 'mutation'})
.then(() => success = true);
await page.evaluate(() => window.__FOO = 'hit');
expect(success).toBe(false);
await page.evaluate(() => document.body.appendChild(document.createElement('div')));
await watchdog;
});
it('should poll on raf', async({page, server}) => {
const watchdog = page.waitForFunction(() => window.__FOO === 'hit', {}, {polling: 'raf'});
await page.evaluate(() => window.__FOO = 'hit');
await watchdog;
});
it('should work with strict CSP policy', async({page, server}) => {
server.setCSP('/empty.html', 'script-src ' + server.PREFIX);
await page.goto(server.EMPTY_PAGE);
let error = null;
await Promise.all([
page.waitForFunction(() => window.__FOO === 'hit', {}, {polling: 'raf'}).catch(e => error = e),
page.evaluate(() => window.__FOO = 'hit')
]);
expect(error).toBe(null);
});
it('should throw on bad polling value', async({page, server}) => {
let error = null;
try {
await page.waitForFunction(() => !!document.body, {}, {polling: 'unknown'});
} catch (e) {
error = e;
}
expect(error).toBeTruthy();
expect(error.message).toContain('polling');
});
it('should throw negative polling interval', async({page, server}) => {
let error = null;
try {
await page.waitForFunction(() => !!document.body, {}, {polling: -10});
} catch (e) {
error = e;
}
expect(error).toBeTruthy();
expect(error.message).toContain('Cannot poll with non-positive interval');
});
it('should return the success value as a JSHandle', async({page}) => {
expect(await (await page.waitForFunction(() => 5)).jsonValue()).toBe(5);
});
it('should return the window as a success value', async({ page }) => {
expect(await page.waitForFunction(() => window)).toBeTruthy();
});
it('should accept ElementHandle arguments', async({page}) => {
await page.setContent('');
const div = await page.$('div');
let resolved = false;
const waitForFunction = page.waitForFunction(element => !element.parentElement, div).then(() => resolved = true);
expect(resolved).toBe(false);
await page.evaluate(element => element.remove(), div);
await waitForFunction;
});
it('should respect timeout', async({page}) => {
let error = null;
await page.waitForFunction('false', {}, {timeout: 10}).catch(e => error = e);
expect(error).toBeTruthy();
expect(error.message).toContain('waiting for function failed: timeout');
expect(error).toBeInstanceOf(playwright.errors.TimeoutError);
});
it('should respect default timeout', async({page}) => {
page.setDefaultTimeout(1);
let error = null;
await page.waitForFunction('false').catch(e => error = e);
expect(error).toBeInstanceOf(playwright.errors.TimeoutError);
expect(error.message).toContain('waiting for function failed: timeout');
});
it('should disable timeout when its set to 0', async({page}) => {
const watchdog = page.waitForFunction(() => {
window.__counter = (window.__counter || 0) + 1;
return window.__injected;
}, {}, {timeout: 0, polling: 10});
await page.waitForFunction(() => window.__counter > 10);
await page.evaluate(() => window.__injected = true);
await watchdog;
});
it('should survive cross-process navigation', async({page, server}) => {
let fooFound = false;
const waitForFunction = page.waitForFunction('window.__FOO === 1').then(() => fooFound = true);
await page.goto(server.EMPTY_PAGE);
expect(fooFound).toBe(false);
await page.reload();
expect(fooFound).toBe(false);
await page.goto(server.CROSS_PROCESS_PREFIX + '/grid.html');
expect(fooFound).toBe(false);
await page.evaluate(() => window.__FOO = 1);
await waitForFunction;
expect(fooFound).toBe(true);
});
it('should survive navigations', async({page, server}) => {
const watchdog = page.waitForFunction(() => window.__done);
await page.goto(server.EMPTY_PAGE);
await page.goto(server.PREFIX + '/consolelog.html');
await page.evaluate(() => window.__done = true);
await watchdog;
});
});
describe('Frame.waitForSelector', function() {
const addElement = tag => document.body.appendChild(document.createElement(tag));
it('should immediately resolve promise if node exists', async({page, server}) => {
await page.goto(server.EMPTY_PAGE);
const frame = page.mainFrame();
await frame.waitForSelector('*');
await frame.evaluate(addElement, 'div');
await frame.waitForSelector('div');
});
it('should work with removed MutationObserver', async({page, server}) => {
await page.evaluate(() => delete window.MutationObserver);
const [handle] = await Promise.all([
page.waitForSelector('.zombo'),
page.setContent(`anything
`),
]);
expect(await page.evaluate(x => x.textContent, handle)).toBe('anything');
});
it('should resolve promise when node is added', async({page, server}) => {
await page.goto(server.EMPTY_PAGE);
const frame = page.mainFrame();
const watchdog = frame.waitForSelector('div');
await frame.evaluate(addElement, 'br');
await frame.evaluate(addElement, 'div');
const eHandle = await watchdog;
const tagName = await eHandle.getProperty('tagName').then(e => e.jsonValue());
expect(tagName).toBe('DIV');
});
it('should work when node is added through innerHTML', async({page, server}) => {
await page.goto(server.EMPTY_PAGE);
const watchdog = page.waitForSelector('h3 div');
await page.evaluate(addElement, 'span');
await page.evaluate(() => document.querySelector('span').innerHTML = '');
await watchdog;
});
it('Page.$ waitFor is shortcut for main frame', async({page, server}) => {
await page.goto(server.EMPTY_PAGE);
await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
const otherFrame = page.frames()[1];
const watchdog = page.waitForSelector('div');
await otherFrame.evaluate(addElement, 'div');
await page.evaluate(addElement, 'div');
const eHandle = await watchdog;
expect(await eHandle.ownerFrame()).toBe(page.mainFrame());
});
it('should run in specified frame', async({page, server}) => {
await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
await utils.attachFrame(page, 'frame2', server.EMPTY_PAGE);
const frame1 = page.frames()[1];
const frame2 = page.frames()[2];
const waitForSelectorPromise = frame2.waitForSelector('div');
await frame1.evaluate(addElement, 'div');
await frame2.evaluate(addElement, 'div');
const eHandle = await waitForSelectorPromise;
expect(await eHandle.ownerFrame()).toBe(frame2);
});
it('should throw when frame is detached', async({page, server}) => {
await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
const frame = page.frames()[1];
let waitError = null;
const waitPromise = frame.waitForSelector('.box').catch(e => waitError = e);
await utils.detachFrame(page, 'frame1');
await waitPromise;
expect(waitError).toBeTruthy();
expect(waitError.message).toContain('waitForFunction failed: frame got detached.');
});
it('should survive cross-process navigation', async({page, server}) => {
let boxFound = false;
const waitForSelector = page.waitForSelector('.box').then(() => boxFound = true);
await page.goto(server.EMPTY_PAGE);
expect(boxFound).toBe(false);
await page.reload();
expect(boxFound).toBe(false);
await page.goto(server.CROSS_PROCESS_PREFIX + '/grid.html');
await waitForSelector;
expect(boxFound).toBe(true);
});
it('should wait for visible', async({page, server}) => {
let divFound = false;
const waitForSelector = page.waitForSelector('div', { waitFor: 'visible' }).then(() => divFound = true);
await page.setContent(`1
`);
expect(divFound).toBe(false);
await page.evaluate(() => document.querySelector('div').style.removeProperty('display'));
expect(divFound).toBe(false);
await page.evaluate(() => document.querySelector('div').style.removeProperty('visibility'));
expect(await waitForSelector).toBe(true);
expect(divFound).toBe(true);
});
it('should wait for visible recursively', async({page, server}) => {
let divVisible = false;
const waitForSelector = page.waitForSelector('div#inner', { waitFor: 'visible' }).then(() => divVisible = true);
await page.setContent(``);
expect(divVisible).toBe(false);
await page.evaluate(() => document.querySelector('div').style.removeProperty('display'));
expect(divVisible).toBe(false);
await page.evaluate(() => document.querySelector('div').style.removeProperty('visibility'));
expect(await waitForSelector).toBe(true);
expect(divVisible).toBe(true);
});
it('hidden should wait for hidden', async({page, server}) => {
let divHidden = false;
await page.setContent(``);
const waitForSelector = page.waitForSelector('div', { waitFor: 'hidden' }).then(() => divHidden = true);
await page.waitForSelector('div'); // do a round trip
expect(divHidden).toBe(false);
await page.evaluate(() => document.querySelector('div').style.setProperty('visibility', 'hidden'));
expect(await waitForSelector).toBe(true);
expect(divHidden).toBe(true);
});
it('hidden should wait for display: none', async({page, server}) => {
let divHidden = false;
await page.setContent(``);
const waitForSelector = page.waitForSelector('div', { waitFor: 'hidden' }).then(() => divHidden = true);
await page.waitForSelector('div'); // do a round trip
expect(divHidden).toBe(false);
await page.evaluate(() => document.querySelector('div').style.setProperty('display', 'none'));
expect(await waitForSelector).toBe(true);
expect(divHidden).toBe(true);
});
it('hidden should wait for removal', async({page, server}) => {
await page.setContent(``);
let divRemoved = false;
const waitForSelector = page.waitForSelector('div', { waitFor: 'hidden' }).then(() => divRemoved = true);
await page.waitForSelector('div'); // do a round trip
expect(divRemoved).toBe(false);
await page.evaluate(() => document.querySelector('div').remove());
expect(await waitForSelector).toBe(true);
expect(divRemoved).toBe(true);
});
it('should return null if waiting to hide non-existing element', async({page, server}) => {
const handle = await page.waitForSelector('non-existing', { waitFor: 'hidden' });
expect(handle).toBe(null);
});
it('should respect timeout', async({page, server}) => {
let error = null;
await page.waitForSelector('div', { timeout: 10 }).catch(e => error = e);
expect(error).toBeTruthy();
expect(error.message).toContain('waiting for selector "div" failed: timeout');
expect(error).toBeInstanceOf(playwright.errors.TimeoutError);
});
it('should have an error message specifically for awaiting an element to be hidden', async({page, server}) => {
await page.setContent(``);
let error = null;
await page.waitForSelector('div', { waitFor: 'hidden', timeout: 10 }).catch(e => error = e);
expect(error).toBeTruthy();
expect(error.message).toContain('waiting for selector "[hidden] div" failed: timeout');
});
it('should respond to node attribute mutation', async({page, server}) => {
let divFound = false;
const waitForSelector = page.waitForSelector('.zombo').then(() => divFound = true);
await page.setContent(``);
expect(divFound).toBe(false);
await page.evaluate(() => document.querySelector('div').className = 'zombo');
expect(await waitForSelector).toBe(true);
});
it('should return the element handle', async({page, server}) => {
const waitForSelector = page.waitForSelector('.zombo');
await page.setContent(`anything
`);
expect(await page.evaluate(x => x.textContent, await waitForSelector)).toBe('anything');
});
it('should have correct stack trace for timeout', async({page, server}) => {
let error;
await page.waitForSelector('.zombo', { timeout: 10 }).catch(e => error = e);
expect(error.stack).toContain('waittask.spec.js');
});
it('should throw for unknown waitFor option', async({page, server}) => {
await page.setContent('');
const error = await page.waitForSelector('section', { waitFor: 'foo' }).catch(e => e);
expect(error.message).toContain('Unsupported waitFor option');
});
it('should throw for visibility option', async({page, server}) => {
await page.setContent('');
const error = await page.waitForSelector('section', { visibility: 'hidden' }).catch(e => e);
expect(error.message).toBe('options.visibility is not supported, did you mean options.waitFor?');
});
it('should throw for true waitFor option', async({page, server}) => {
await page.setContent('');
const error = await page.waitForSelector('section', { waitFor: true }).catch(e => e);
expect(error.message).toContain('Unsupported waitFor option');
});
it('should throw for false waitFor option', async({page, server}) => {
await page.setContent('');
const error = await page.waitForSelector('section', { waitFor: false }).catch(e => e);
expect(error.message).toContain('Unsupported waitFor option');
});
it('should support >> selector syntax', async({page, server}) => {
await page.goto(server.EMPTY_PAGE);
const frame = page.mainFrame();
const watchdog = frame.waitForSelector('css=div >> css=span');
await frame.evaluate(addElement, 'br');
await frame.evaluate(addElement, 'div');
await frame.evaluate(() => document.querySelector('div').appendChild(document.createElement('span')));
const eHandle = await watchdog;
const tagName = await eHandle.getProperty('tagName').then(e => e.jsonValue());
expect(tagName).toBe('SPAN');
});
it('should wait for detached if already detached', async({page, server}) => {
await page.setContent('');
expect(await page.waitForSelector('css=div', { waitFor: 'detached'})).toBe(null);
});
it('should wait for detached', async({page, server}) => {
await page.setContent('');
let done = false;
const waitFor = page.waitForSelector('css=div', { waitFor: 'detached'}).then(() => done = true);
expect(done).toBe(false);
await page.waitForSelector('css=section');
expect(done).toBe(false);
await page.$eval('div', div => div.remove());
expect(await waitFor).toBe(true);
expect(done).toBe(true);
});
});
describe('Frame.waitForSelector xpath', function() {
const addElement = tag => document.body.appendChild(document.createElement(tag));
it('should support some fancy xpath', async({page, server}) => {
await page.setContent(`red herring
hello world
`);
const waitForXPath = page.waitForSelector('//p[normalize-space(.)="hello world"]');
expect(await page.evaluate(x => x.textContent, await waitForXPath)).toBe('hello world ');
});
it('should respect timeout', async({page}) => {
let error = null;
await page.waitForSelector('//div', { timeout: 10 }).catch(e => error = e);
expect(error).toBeTruthy();
expect(error.message).toContain('waiting for selector "//div" failed: timeout');
expect(error).toBeInstanceOf(playwright.errors.TimeoutError);
});
it('should run in specified frame', async({page, server}) => {
await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
await utils.attachFrame(page, 'frame2', server.EMPTY_PAGE);
const frame1 = page.frames()[1];
const frame2 = page.frames()[2];
const waitForXPathPromise = frame2.waitForSelector('//div');
await frame1.evaluate(addElement, 'div');
await frame2.evaluate(addElement, 'div');
const eHandle = await waitForXPathPromise;
expect(await eHandle.ownerFrame()).toBe(frame2);
});
it('should throw when frame is detached', async({page, server}) => {
await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
const frame = page.frames()[1];
let waitError = null;
const waitPromise = frame.waitForSelector('//*[@class="box"]').catch(e => waitError = e);
await utils.detachFrame(page, 'frame1');
await waitPromise;
expect(waitError).toBeTruthy();
expect(waitError.message).toContain('waitForFunction failed: frame got detached.');
});
it('should return the element handle', async({page, server}) => {
const waitForXPath = page.waitForSelector('//*[@class="zombo"]');
await page.setContent(`anything
`);
expect(await page.evaluate(x => x.textContent, await waitForXPath)).toBe('anything');
});
it('should allow you to select an element with single slash', async({page, server}) => {
await page.setContent(`some text
`);
const waitForXPath = page.waitForSelector('//html/body/div');
expect(await page.evaluate(x => x.textContent, await waitForXPath)).toBe('some text');
});
});
};