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playwright/tests/page/page-screenshot.spec.ts

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/**
* 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.
*/
import { test as it, expect } from './pageTest';
import { verifyViewport, attachFrame } from '../config/utils';
import type { Route } from 'playwright-core';
import path from 'path';
import fs from 'fs';
import os from 'os';
it.describe('page screenshot', () => {
it.skip(({ browserName, headless }) => browserName === 'firefox' && !headless, 'Firefox headed produces a different image.');
it.skip(({ isAndroid }) => isAndroid, 'Different viewport');
it('should work @smoke', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
const screenshot = await page.screenshot();
expect(screenshot).toMatchSnapshot('screenshot-sanity.png');
});
it('should not capture blinking caret by default', async ({ page, server }) => {
await page.setContent(`
<!-- Refer to stylesheet from other origin. Accessing this
stylesheet rules will throw.
-->
<link rel=stylesheet href="${server.CROSS_PROCESS_PREFIX + '/injectedstyle.css'}">
<!-- make life harder: define caret color in stylesheet -->
<style>
div {
caret-color: #000 !important;
}
</style>
<div contenteditable="true"></div>
`);
const div = page.locator('div');
await div.type('foo bar');
const screenshot = await div.screenshot();
for (let i = 0; i < 10; ++i) {
// Caret blinking time is set to 500ms.
// Try to capture variety of screenshots to make
// sure we don't capture blinking caret.
await new Promise(x => setTimeout(x, 150));
const newScreenshot = await div.screenshot();
expect(newScreenshot.equals(screenshot)).toBe(true);
}
});
it('should capture blinking caret if explicitly asked for', async ({ page, server }) => {
await page.setContent(`
<!-- Refer to stylesheet from other origin. Accessing this
stylesheet rules will throw.
-->
<link rel=stylesheet href="${server.CROSS_PROCESS_PREFIX + '/injectedstyle.css'}">
<!-- make life harder: define caret color in stylesheet -->
<style>
div {
caret-color: #000 !important;
}
</style>
<div contenteditable="true"></div>
`);
const div = page.locator('div');
await div.type('foo bar');
const screenshot = await div.screenshot();
let hasDifferentScreenshots = false;
for (let i = 0; !hasDifferentScreenshots && i < 10; ++i) {
// Caret blinking time is set to 500ms.
// Try to capture variety of screenshots to make
// sure we capture blinking caret.
await new Promise(x => setTimeout(x, 150));
const newScreenshot = await div.screenshot({ caret: 'initial' });
hasDifferentScreenshots = !newScreenshot.equals(screenshot);
}
expect(hasDifferentScreenshots).toBe(true);
});
it('should clip rect', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
const screenshot = await page.screenshot({
clip: {
x: 50,
y: 100,
width: 150,
height: 100
}
});
expect(screenshot).toMatchSnapshot('screenshot-clip-rect.png');
});
it('should clip rect with fullPage', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
await page.evaluate(() => window.scrollBy(150, 200));
const screenshot = await page.screenshot({
fullPage: true,
clip: {
x: 50,
y: 100,
width: 150,
height: 100,
},
});
expect(screenshot).toMatchSnapshot('screenshot-clip-rect.png');
});
it('should clip elements to the viewport', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
const screenshot = await page.screenshot({
clip: {
x: 50,
y: 450,
width: 1000,
height: 100
}
});
expect(screenshot).toMatchSnapshot('screenshot-offscreen-clip.png');
});
it('should throw on clip outside the viewport', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
const screenshotError = await page.screenshot({
clip: {
x: 50,
y: 650,
width: 100,
height: 100
}
}).catch(error => error);
expect(screenshotError.message).toContain('Clipped area is either empty or outside the resulting image');
});
it('should run in parallel', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
const promises = [];
for (let i = 0; i < 3; ++i) {
promises.push(page.screenshot({
clip: {
x: 50 * i,
y: 0,
width: 50,
height: 50
}
}));
}
const screenshots = await Promise.all(promises);
expect(screenshots[1]).toMatchSnapshot('grid-cell-1.png');
});
it('should take fullPage screenshots', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
const screenshot = await page.screenshot({
fullPage: true
});
expect(screenshot).toMatchSnapshot('screenshot-grid-fullpage.png');
});
it('should restore viewport after fullPage screenshot', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
const screenshot = await page.screenshot({ fullPage: true });
expect(screenshot).toBeInstanceOf(Buffer);
await verifyViewport(page, 500, 500);
});
it('should allow transparency', async ({ page, browserName }) => {
it.fail(browserName === 'firefox');
await page.setViewportSize({ width: 50, height: 150 });
await page.setContent(`
<style>
body { margin: 0 }
div { width: 50px; height: 50px; }
</style>
<div style="background:black"></div>
<div style="background:white"></div>
<div style="background:transparent"></div>
`);
const screenshot = await page.screenshot({ omitBackground: true });
expect(screenshot).toMatchSnapshot('transparent.png');
});
it('should render white background on jpeg file', async ({ page, server, isElectron }) => {
it.fixme(isElectron, 'omitBackground with jpeg does not work');
await page.setViewportSize({ width: 300, height: 300 });
await page.goto(server.EMPTY_PAGE);
const screenshot = await page.screenshot({ omitBackground: true, type: 'jpeg' });
expect(screenshot).toMatchSnapshot('white.jpg');
});
it('should work with odd clip size on Retina displays', async ({ page, isElectron }) => {
it.fixme(isElectron, 'Scale is wrong');
const screenshot = await page.screenshot({
clip: {
x: 0,
y: 0,
width: 11,
height: 11,
}
});
expect(screenshot).toMatchSnapshot('screenshot-clip-odd-size.png');
});
it('should work for canvas', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/screenshots/canvas.html');
const screenshot = await page.screenshot();
expect(screenshot).toMatchSnapshot('screenshot-canvas.png', { threshold: 0.4 });
});
it('should capture canvas changes', async ({ page, isElectron, browserName, isMac }) => {
it.fixme(browserName === 'webkit' && isMac && parseInt(os.release(), 10) < 20, 'https://github.com/microsoft/playwright/issues/8796');
it.skip(isElectron);
await page.goto('data:text/html,<canvas></canvas>');
await page.evaluate(() => {
const canvas = document.querySelector('canvas');
canvas.width = 600;
canvas.height = 600;
});
async function addLine(step: number) {
await page.evaluate(n => {
const canvas = document.querySelector('canvas');
const ctx = canvas.getContext('2d');
ctx.lineWidth = 1;
ctx.beginPath();
ctx.moveTo(0, n * 100);
ctx.lineTo(300, n * 100);
ctx.stroke();
}, step);
}
for (let i = 0; i < 3; i++) {
await addLine(i);
// With the slight delay WebKit stops reflecting changes in the screenshots on macOS.
await new Promise(f => setTimeout(f, 100));
const screenshot = await page.screenshot();
expect(screenshot).toMatchSnapshot(`canvas-changes-${i}.png`);
}
});
it('should work for webgl', async ({ page, server, browserName }) => {
it.fixme(browserName === 'firefox' || browserName === 'webkit');
await page.setViewportSize({ width: 640, height: 480 });
await page.goto(server.PREFIX + '/screenshots/webgl.html');
const screenshot = await page.screenshot();
expect(screenshot).toMatchSnapshot('screenshot-webgl.png');
});
it('should work for translateZ', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/screenshots/translateZ.html');
const screenshot = await page.screenshot();
expect(screenshot).toMatchSnapshot('screenshot-translateZ.png');
});
it('should work while navigating', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/redirectloop1.html');
for (let i = 0; i < 10; i++) {
const screenshot = await page.screenshot({ fullPage: true }).catch(e => {
if (e.message.includes('Cannot take a screenshot while page is navigating'))
return Buffer.from('');
throw e;
});
expect(screenshot).toBeInstanceOf(Buffer);
}
});
it('should work with iframe in shadow', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid-iframe-in-shadow.html');
expect(await page.screenshot()).toMatchSnapshot('screenshot-iframe.png');
});
it('path option should work', async ({ page, server }, testInfo) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
const outputPath = testInfo.outputPath('screenshot.png');
await page.screenshot({ path: outputPath });
expect(await fs.promises.readFile(outputPath)).toMatchSnapshot('screenshot-sanity.png');
});
it('path option should create subdirectories', async ({ page, server }, testInfo) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
const outputPath = testInfo.outputPath(path.join('these', 'are', 'directories', 'screenshot.png'));
await page.screenshot({ path: outputPath });
expect(await fs.promises.readFile(outputPath)).toMatchSnapshot('screenshot-sanity.png');
});
it('path option should detect jpeg', async ({ page, server, isElectron }, testInfo) => {
it.fixme(isElectron, 'omitBackground with jpeg does not work');
await page.setViewportSize({ width: 300, height: 300 });
await page.goto(server.EMPTY_PAGE);
const outputPath = testInfo.outputPath('screenshot.jpg');
const screenshot = await page.screenshot({ omitBackground: true, path: outputPath });
expect(await fs.promises.readFile(outputPath)).toMatchSnapshot('white.jpg');
expect(screenshot).toMatchSnapshot('white.jpg');
});
it('path option should throw for unsupported mime type', async ({ page }) => {
const error = await page.screenshot({ path: 'file.txt' }).catch(e => e);
expect(error.message).toContain('path: unsupported mime type "text/plain"');
});
it('quality option should throw for png', async ({ page }) => {
const error = await page.screenshot({ quality: 10 }).catch(e => e);
expect(error.message).toContain('options.quality is unsupported for the png');
});
it('zero quality option should throw for png', async ({ page }) => {
const error = await page.screenshot({ quality: 0, type: 'png' }).catch(e => e);
expect(error.message).toContain('options.quality is unsupported for the png');
});
it('should prefer type over extension', async ({ page }, testInfo) => {
const outputPath = testInfo.outputPath('file.png');
const buffer = await page.screenshot({ path: outputPath, type: 'jpeg' });
expect([buffer[0], buffer[1], buffer[2]]).toEqual([0xFF, 0xD8, 0xFF]);
});
it('should not issue resize event', async ({ page, server }) => {
await page.goto(server.PREFIX + '/grid.html');
let resizeTriggered = false;
await page.exposeFunction('resize', () => {
resizeTriggered = true;
});
await page.evaluate(() => {
window.addEventListener('resize', () => (window as any).resize());
});
await page.screenshot();
expect(resizeTriggered).toBeFalsy();
});
it('should work with Array deleted', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
await page.evaluate(() => delete window.Array);
const screenshot = await page.screenshot({ fullPage: true });
expect(screenshot).toMatchSnapshot('screenshot-grid-fullpage.png');
});
it('should take fullPage screenshots during navigation', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
const reloadSeveralTimes = async () => {
for (let i = 0; i < 5; ++i)
await page.reload();
};
const screenshotSeveralTimes = async () => {
for (let i = 0; i < 5; ++i)
await page.screenshot({ fullPage: true });
};
await Promise.all([
reloadSeveralTimes(),
screenshotSeveralTimes()
]);
});
it.describe('mask option', () => {
it('should work', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
expect(await page.screenshot({
mask: [ page.locator('div').nth(5) ],
})).toMatchSnapshot('mask-should-work.png');
});
it('should work with locator', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
const bodyLocator = page.locator('body');
expect(await bodyLocator.screenshot({
mask: [ page.locator('div').nth(5) ],
})).toMatchSnapshot('mask-should-work-with-locator.png');
});
it('should work with elementhandle', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
const bodyHandle = await page.$('body');
expect(await bodyHandle.screenshot({
mask: [ page.locator('div').nth(5) ],
})).toMatchSnapshot('mask-should-work-with-elementhandle.png');
});
it('should mask multiple elements', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
expect(await page.screenshot({
mask: [
page.locator('div').nth(5),
page.locator('div').nth(12),
],
})).toMatchSnapshot('should-mask-multiple-elements.png');
});
it('should mask inside iframe', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
await attachFrame(page, 'frame1', server.PREFIX + '/grid.html');
await page.addStyleTag({ content: 'iframe { border: none; }' });
expect(await page.screenshot({
mask: [
page.locator('div').nth(5),
page.frameLocator('#frame1').locator('div').nth(12),
],
})).toMatchSnapshot('should-mask-inside-iframe.png');
});
it('should mask in parallel', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await attachFrame(page, 'frame1', server.PREFIX + '/grid.html');
await attachFrame(page, 'frame2', server.PREFIX + '/grid.html');
await page.addStyleTag({ content: 'iframe { border: none; }' });
const screenshots = await Promise.all([
page.screenshot({
mask: [ page.frameLocator('#frame1').locator('div').nth(1) ],
}),
page.screenshot({
mask: [ page.frameLocator('#frame2').locator('div').nth(3) ],
}),
]);
expect(screenshots[0]).toMatchSnapshot('should-mask-in-parallel-1.png');
expect(screenshots[1]).toMatchSnapshot('should-mask-in-parallel-2.png');
});
it('should remove mask after screenshot', async ({ page, server }) => {
await page.setViewportSize({ width: 500, height: 500 });
await page.goto(server.PREFIX + '/grid.html');
const screenshot1 = await page.screenshot();
await page.screenshot({
mask: [ page.locator('div').nth(1) ],
});
const screenshot2 = await page.screenshot();
expect(screenshot1.equals(screenshot2)).toBe(true);
});
it('should work when subframe has stalled navigation', async ({ page, server }) => {
let cb;
const routeReady = new Promise<Route>(f => cb = f);
await page.route('**/subframe.html', cb); // Stalling subframe.
await page.goto(server.EMPTY_PAGE);
const done = page.setContent(`<iframe src='/subframe.html'></iframe>`);
const route = await routeReady;
await page.screenshot({ mask: [ page.locator('non-existent') ] });
await route.fulfill({ body: '' });
await done;
});
it('should work when subframe used document.open after a weird url', async ({ page, server }) => {
await page.goto(server.EMPTY_PAGE);
await page.evaluate(() => {
const iframe = document.createElement('iframe');
iframe.src = 'javascript:hi';
document.body.appendChild(iframe);
iframe.contentDocument.open();
iframe.contentDocument.write('Hello');
iframe.contentDocument.close();
});
await page.screenshot({ mask: [ page.locator('non-existent') ] });
});
});
});
async function rafraf(page) {
// Do a double raf since single raf does not
// actually guarantee a new animation frame.
await page.evaluate(() => new Promise(x => {
requestAnimationFrame(() => requestAnimationFrame(x));
}));
}
declare global {
interface Window {
animation?: Animation;
_EVENTS?: string[];
}
}
it.describe('page screenshot animations', () => {
it('should not capture infinite css animation', async ({ page, server }) => {
await page.goto(server.PREFIX + '/rotate-z.html');
const div = page.locator('div');
const screenshot = await div.screenshot({
animations: 'disabled',
});
for (let i = 0; i < 10; ++i) {
await rafraf(page);
const newScreenshot = await div.screenshot({
animations: 'disabled',
});
expect(newScreenshot.equals(screenshot)).toBe(true);
}
});
it('should not capture pseudo element css animation', async ({ page, server }) => {
await page.goto(server.PREFIX + '/rotate-pseudo.html');
const div = page.locator('div');
const screenshot = await div.screenshot({
animations: 'disabled',
});
for (let i = 0; i < 10; ++i) {
await rafraf(page);
const newScreenshot = await div.screenshot({
animations: 'disabled',
});
expect(newScreenshot.equals(screenshot)).toBe(true);
}
});
it('should not capture css animations in shadow DOM', async ({ page, server, isAndroid }) => {
it.skip(isAndroid, 'Different viewport');
await page.goto(server.PREFIX + '/rotate-z-shadow-dom.html');
const screenshot = await page.screenshot({
animations: 'disabled',
});
for (let i = 0; i < 4; ++i) {
await rafraf(page);
const newScreenshot = await page.screenshot({
animations: 'disabled',
});
expect(newScreenshot.equals(screenshot)).toBe(true);
}
});
it('should stop animations that happen right before screenshot', async ({ page, server, mode, isAndroid }) => {
it.skip(mode !== 'default');
it.skip(isAndroid, 'Different viewport');
await page.goto(server.PREFIX + '/rotate-z.html');
// Stop rotating bar.
await page.$eval('div', el => el.style.setProperty('animation', 'none'));
const buffer1 = await page.screenshot({
animations: 'disabled',
// Start rotating bar right before screenshot.
__testHookBeforeScreenshot: async () => {
await page.$eval('div', el => el.style.removeProperty('animation'));
},
} as any);
await rafraf(page);
const buffer2 = await page.screenshot({
animations: 'disabled',
});
expect(buffer1.equals(buffer2)).toBe(true);
});
it('should resume infinite animations', async ({ page, server }) => {
await page.goto(server.PREFIX + '/rotate-z.html');
await page.screenshot({
animations: 'disabled',
});
const buffer1 = await page.screenshot();
await rafraf(page);
const buffer2 = await page.screenshot();
expect(buffer1.equals(buffer2)).toBe(false);
});
it('should not capture infinite web animations', async ({ page, server }) => {
await page.goto(server.PREFIX + '/web-animation.html');
const div = page.locator('div');
const screenshot = await div.screenshot({
animations: 'disabled',
});
for (let i = 0; i < 10; ++i) {
await rafraf(page);
const newScreenshot = await div.screenshot({
animations: 'disabled',
});
expect(newScreenshot.equals(screenshot)).toBe(true);
}
// Should resume infinite web animation.
const buffer1 = await page.screenshot();
await rafraf(page);
const buffer2 = await page.screenshot();
expect(buffer1.equals(buffer2)).toBe(false);
});
it('should fire transitionend for finite transitions', async ({ page, server }) => {
await page.goto(server.PREFIX + '/css-transition.html');
const div = page.locator('div');
await div.evaluate(el => {
el.addEventListener('transitionend', () => window['__TRANSITION_END'] = true, false);
});
await it.step('make sure transition is actually running', async () => {
const screenshot1 = await page.screenshot();
await rafraf(page);
const screenshot2 = await page.screenshot();
expect(screenshot1.equals(screenshot2)).toBe(false);
});
// Make a screenshot that finishes all finite animations.
const screenshot1 = await div.screenshot({
animations: 'disabled',
});
await rafraf(page);
// Make sure finite transition is not restarted.
const screenshot2 = await div.screenshot({ animations: 'allow' });
expect(screenshot1.equals(screenshot2)).toBe(true);
expect(await page.evaluate(() => window['__TRANSITION_END'])).toBe(true);
});
it('should capture screenshots after layoutchanges in transitionend event', async ({ page, server }) => {
await page.goto(server.PREFIX + '/css-transition.html');
const div = page.locator('div');
await div.evaluate(el => {
el.addEventListener('transitionend', () => {
const time = Date.now();
// Block main thread for 200ms, emulating heavy layout.
while (Date.now() - time < 200) ;
const h1 = document.createElement('h1');
h1.textContent = 'woof-woof';
document.body.append(h1);
}, false);
});
await it.step('make sure transition is actually running', async () => {
const screenshot1 = await page.screenshot();
await rafraf(page);
const screenshot2 = await page.screenshot();
expect(screenshot1.equals(screenshot2)).toBe(false);
});
// 1. Make a screenshot that finishes all finite animations
// and triggers layout.
const screenshot1 = await page.screenshot({
animations: 'disabled',
});
// 2. Make a second screenshot after h1 is on screen.
await expect(page.locator('h1')).toBeVisible();
await expect(page.locator('h1')).toHaveText('woof-woof');
const screenshot2 = await page.screenshot();
// 3. Make sure both screenshots are equal, meaning that
// first screenshot actually was taken after transitionend
// changed layout.
expect(screenshot1.equals(screenshot2)).toBe(true);
});
it('should not change animation with playbackRate equal to 0', async ({ page, server, isAndroid }) => {
it.skip(isAndroid, 'Different viewport');
await page.goto(server.PREFIX + '/rotate-z.html');
await page.evaluate(async () => {
window.animation = document.getAnimations()[0];
await window.animation.ready;
window.animation.updatePlaybackRate(0);
await window.animation.ready;
window.animation.currentTime = 500;
});
const screenshot1 = await page.screenshot({
animations: 'disabled',
});
await rafraf(page);
const screenshot2 = await page.screenshot({
animations: 'disabled',
});
expect(screenshot1.equals(screenshot2)).toBe(true);
expect(await page.evaluate(() => ({
playbackRate: window.animation.playbackRate,
currentTime: window.animation.currentTime,
}))).toEqual({
playbackRate: 0,
currentTime: 500,
});
});
it('should trigger particular events for css transitions', async ({ page, server }) => {
await page.goto(server.PREFIX + '/css-transition.html');
const div = page.locator('div');
await div.evaluate(async el => {
window._EVENTS = [];
el.addEventListener('transitionend', () => {
window._EVENTS.push('transitionend');
console.log('transitionend');
}, false);
const animation = el.getAnimations()[0];
animation.oncancel = () => window._EVENTS.push('oncancel');
animation.onfinish = () => window._EVENTS.push('onfinish');
animation.onremove = () => window._EVENTS.push('onremove');
await animation.ready;
});
await Promise.all([
page.screenshot({ animations: 'disabled' }),
page.waitForEvent('console', msg => msg.text() === 'transitionend'),
]);
expect(await page.evaluate(() => window._EVENTS)).toEqual([
'onfinish', 'transitionend'
]);
});
it('should trigger particular events for INfinite css animation', async ({ page, server }) => {
await page.goto(server.PREFIX + '/rotate-z.html');
const div = page.locator('div');
await div.evaluate(async el => {
window._EVENTS = [];
el.addEventListener('animationcancel', () => {
window._EVENTS.push('animationcancel');
console.log('animationcancel');
}, false);
const animation = el.getAnimations()[0];
animation.oncancel = () => window._EVENTS.push('oncancel');
animation.onfinish = () => window._EVENTS.push('onfinish');
animation.onremove = () => window._EVENTS.push('onremove');
await animation.ready;
});
await Promise.all([
page.screenshot({ animations: 'disabled' }),
page.waitForEvent('console', msg => msg.text() === 'animationcancel'),
]);
expect(await page.evaluate(() => window._EVENTS)).toEqual([
'oncancel', 'animationcancel'
]);
});
it('should trigger particular events for finite css animation', async ({ page, server }) => {
await page.goto(server.PREFIX + '/rotate-z.html');
const div = page.locator('div');
await div.evaluate(async el => {
window._EVENTS = [];
// Make CSS animation to be finite.
el.style.setProperty('animation-iteration-count', '1000');
el.addEventListener('animationend', () => {
window._EVENTS.push('animationend');
console.log('animationend');
}, false);
const animation = el.getAnimations()[0];
animation.oncancel = () => window._EVENTS.push('oncancel');
animation.onfinish = () => window._EVENTS.push('onfinish');
animation.onremove = () => window._EVENTS.push('onremove');
await animation.ready;
});
// Ensure CSS animation is finite.
expect(await div.evaluate(async el => Number.isFinite(el.getAnimations()[0].effect.getComputedTiming().endTime))).toBe(true);
await Promise.all([
page.screenshot({ animations: 'disabled' }),
page.waitForEvent('console', msg => msg.text() === 'animationend'),
]);
expect(await page.evaluate(() => window._EVENTS)).toEqual([
'onfinish', 'animationend'
]);
});
});
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