playwright/test/waittask.spec.js

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/**
* Copyright 2018 Google Inc. All rights reserved.
* Modifications copyright (c) Microsoft Corporation.
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*
* 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}) {
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const {describe, xdescribe, fdescribe} = testRunner;
const {it, fit, xit, dit} = testRunner;
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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(`<div>some text</div>`);
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}),
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]);
});
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, {}, 1, 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);
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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);
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});
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.fail(FFOX)('should work with strict CSP policy', async({page, server}) => {
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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('<div></div>');
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.waitForElement', function() {
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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.waitForElement('*');
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await frame.evaluate(addElement, 'div');
await frame.waitForElement('div');
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});
it('should work with removed MutationObserver', async({page, server}) => {
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await page.evaluate(() => delete window.MutationObserver);
const [handle] = await Promise.all([
page.waitForElement('.zombo'),
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page.setContent(`<div class='zombo'>anything</div>`),
]);
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.waitForElement('div');
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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.waitForElement('h3 div');
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await page.evaluate(addElement, 'span');
await page.evaluate(() => document.querySelector('span').innerHTML = '<h3><div></div></h3>');
await watchdog;
});
it('Page.$ waitFor is shortcut for main frame', async({page, server}) => {
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await page.goto(server.EMPTY_PAGE);
await utils.attachFrame(page, 'frame1', server.EMPTY_PAGE);
const otherFrame = page.frames()[1];
const watchdog = page.waitForElement('div');
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await otherFrame.evaluate(addElement, 'div');
await page.evaluate(addElement, 'div');
const eHandle = await watchdog;
expect(await eHandle.ownerFrame()).toBe(page.mainFrame());
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});
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 waitForElementPromise = frame2.waitForElement('div');
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await frame1.evaluate(addElement, 'div');
await frame2.evaluate(addElement, 'div');
const eHandle = await waitForElementPromise;
expect(await eHandle.ownerFrame()).toBe(frame2);
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});
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.waitForElement('.box').catch(e => waitError = e);
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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 waitForElement = page.waitForElement('.box').then(() => boxFound = true);
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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 waitForElement;
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expect(boxFound).toBe(true);
});
it('should wait for visible', async({page, server}) => {
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let divFound = false;
const waitForElement = page.waitForElement('div', { waitFor: 'visible' }).then(() => divFound = true);
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await page.setContent(`<div style='display: none; visibility: hidden;'>1</div>`);
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 waitForElement).toBe(true);
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expect(divFound).toBe(true);
});
it('should wait for visible recursively', async({page, server}) => {
let divVisible = false;
const waitForElement = page.waitForElement('div#inner', { waitFor: 'visible' }).then(() => divVisible = true);
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await page.setContent(`<div style='display: none; visibility: hidden;'><div id="inner">hi</div></div>`);
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 waitForElement).toBe(true);
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expect(divVisible).toBe(true);
});
it('hidden should wait for hidden', async({page, server}) => {
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let divHidden = false;
await page.setContent(`<div style='display: block;'></div>`);
const waitForElement = page.waitForElement('div', { waitFor: 'hidden' }).then(() => divHidden = true);
await page.waitForElement('div'); // do a round trip
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expect(divHidden).toBe(false);
await page.evaluate(() => document.querySelector('div').style.setProperty('visibility', 'hidden'));
expect(await waitForElement).toBe(true);
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expect(divHidden).toBe(true);
});
it('hidden should wait for display: none', async({page, server}) => {
let divHidden = false;
await page.setContent(`<div style='display: block;'></div>`);
const waitForElement = page.waitForElement('div', { waitFor: 'hidden' }).then(() => divHidden = true);
await page.waitForElement('div'); // do a round trip
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expect(divHidden).toBe(false);
await page.evaluate(() => document.querySelector('div').style.setProperty('display', 'none'));
expect(await waitForElement).toBe(true);
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expect(divHidden).toBe(true);
});
it('hidden should wait for removal', async({page, server}) => {
await page.setContent(`<div></div>`);
let divRemoved = false;
const waitForElement = page.waitForElement('div', { waitFor: 'hidden' }).then(() => divRemoved = true);
await page.waitForElement('div'); // do a round trip
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expect(divRemoved).toBe(false);
await page.evaluate(() => document.querySelector('div').remove());
expect(await waitForElement).toBe(true);
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expect(divRemoved).toBe(true);
});
it('should return null if waiting to hide non-existing element', async({page, server}) => {
const handle = await page.waitForElement('non-existing', { waitFor: 'hidden' });
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expect(handle).toBe(null);
});
it('should respect timeout', async({page, server}) => {
let error = null;
await page.waitForElement('div', { timeout: 10 }).catch(e => error = e);
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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(`<div></div>`);
let error = null;
await page.waitForElement('div', { waitFor: 'hidden', timeout: 10 }).catch(e => error = e);
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expect(error).toBeTruthy();
expect(error.message).toContain('waiting for selector "[hidden] div" failed: timeout');
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});
it('should respond to node attribute mutation', async({page, server}) => {
let divFound = false;
const waitForElement = page.waitForElement('.zombo').then(() => divFound = true);
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await page.setContent(`<div class='notZombo'></div>`);
expect(divFound).toBe(false);
await page.evaluate(() => document.querySelector('div').className = 'zombo');
expect(await waitForElement).toBe(true);
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});
it('should return the element handle', async({page, server}) => {
const waitForElement = page.waitForElement('.zombo');
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await page.setContent(`<div class='zombo'>anything</div>`);
expect(await page.evaluate(x => x.textContent, await waitForElement)).toBe('anything');
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});
it('should have correct stack trace for timeout', async({page, server}) => {
let error;
await page.waitForElement('.zombo', { timeout: 10 }).catch(e => error = e);
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expect(error.stack).toContain('waittask.spec.js');
});
it('should throw for unknown waitFor option', async({page, server}) => {
await page.setContent('<section>test</section>');
const error = await page.waitForElement('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('<section>test</section>');
const error = await page.waitForElement('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('<section>test</section>');
const error = await page.waitForElement('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('<section>test</section>');
const error = await page.waitForElement('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.waitForElement('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('<section id="testAttribute">43543</section>');
expect(await page.waitForElement('css=div', { waitFor: 'detached'})).toBe(null);
});
it('should wait for detached', async({page, server}) => {
await page.setContent('<section id="testAttribute"><div>43543</div></section>');
let done = false;
const waitFor = page.waitForElement('css=div', { waitFor: 'detached'}).then(() => done = true);
expect(done).toBe(false);
await page.waitForElement('css=section');
expect(done).toBe(false);
await page.$eval('div', div => div.remove());
expect(await waitFor).toBe(true);
expect(done).toBe(true);
});
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});
describe('Frame.waitForElement xpath', function() {
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const addElement = tag => document.body.appendChild(document.createElement(tag));
it('should support some fancy xpath', async({page, server}) => {
await page.setContent(`<p>red herring</p><p>hello world </p>`);
const waitForXPath = page.waitForElement('//p[normalize-space(.)="hello world"]');
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expect(await page.evaluate(x => x.textContent, await waitForXPath)).toBe('hello world ');
});
it('should respect timeout', async({page}) => {
let error = null;
await page.waitForElement('//div', { timeout: 10 }).catch(e => error = e);
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expect(error).toBeTruthy();
expect(error.message).toContain('waiting for selector "//div" failed: timeout');
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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.waitForElement('//div');
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await frame1.evaluate(addElement, 'div');
await frame2.evaluate(addElement, 'div');
const eHandle = await waitForXPathPromise;
expect(await eHandle.ownerFrame()).toBe(frame2);
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});
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.waitForElement('//*[@class="box"]').catch(e => waitError = e);
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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.waitForElement('//*[@class="zombo"]');
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await page.setContent(`<div class='zombo'>anything</div>`);
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(`<div>some text</div>`);
const waitForXPath = page.waitForElement('//html/body/div');
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expect(await page.evaluate(x => x.textContent, await waitForXPath)).toBe('some text');
});
});
};