mirror of
https://github.com/microsoft/playwright.git
synced 2024-12-12 11:50:22 +03:00
397 lines
17 KiB
TypeScript
397 lines
17 KiB
TypeScript
/**
|
|
* 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 { it, expect, describe, options } from './fixtures';
|
|
import { verifyViewport } from './utils';
|
|
|
|
import {PNG} from 'pngjs';
|
|
import path from 'path';
|
|
import fs from 'fs';
|
|
|
|
describe('element screenshot', (suite, parameters) => {
|
|
suite.skip(parameters.browserName === 'firefox' && !options.HEADLESS);
|
|
}, () => {
|
|
it('should work', async ({page, server, golden}) => {
|
|
await page.setViewportSize({width: 500, height: 500});
|
|
await page.goto(server.PREFIX + '/grid.html');
|
|
await page.evaluate(() => window.scrollBy(50, 100));
|
|
const elementHandle = await page.$('.box:nth-of-type(3)');
|
|
const screenshot = await elementHandle.screenshot();
|
|
expect(screenshot).toMatchImage(golden('screenshot-element-bounding-box.png'));
|
|
});
|
|
|
|
it('should take into account padding and border', async ({page, golden}) => {
|
|
await page.setViewportSize({width: 500, height: 500});
|
|
await page.setContent(`
|
|
<div style="height: 14px">oooo</div>
|
|
<style>div {
|
|
border: 2px solid blue;
|
|
background: green;
|
|
width: 50px;
|
|
height: 50px;
|
|
}
|
|
</style>
|
|
<div id="d"></div>
|
|
`);
|
|
const elementHandle = await page.$('div#d');
|
|
const screenshot = await elementHandle.screenshot();
|
|
expect(screenshot).toMatchImage(golden('screenshot-element-padding-border.png'));
|
|
});
|
|
|
|
it('should capture full element when larger than viewport in parallel', async ({page, golden}) => {
|
|
await page.setViewportSize({width: 500, height: 500});
|
|
|
|
await page.setContent(`
|
|
<div style="height: 14px">oooo</div>
|
|
<style>
|
|
div.to-screenshot {
|
|
border: 1px solid blue;
|
|
width: 600px;
|
|
height: 600px;
|
|
margin-left: 50px;
|
|
}
|
|
::-webkit-scrollbar{
|
|
display: none;
|
|
}
|
|
</style>
|
|
<div class="to-screenshot"></div>
|
|
<div class="to-screenshot"></div>
|
|
<div class="to-screenshot"></div>
|
|
`);
|
|
const elementHandles = await page.$$('div.to-screenshot');
|
|
const promises = elementHandles.map(handle => handle.screenshot());
|
|
const screenshots = await Promise.all(promises);
|
|
expect(screenshots[2]).toMatchImage(golden('screenshot-element-larger-than-viewport.png'));
|
|
|
|
await verifyViewport(page, 500, 500);
|
|
});
|
|
|
|
it('should capture full element when larger than viewport', async ({page, golden}) => {
|
|
await page.setViewportSize({width: 500, height: 500});
|
|
|
|
await page.setContent(`
|
|
<div style="height: 14px">oooo</div>
|
|
<style>
|
|
div.to-screenshot {
|
|
border: 1px solid blue;
|
|
width: 600px;
|
|
height: 600px;
|
|
margin-left: 50px;
|
|
}
|
|
::-webkit-scrollbar{
|
|
display: none;
|
|
}
|
|
</style>
|
|
<div class="to-screenshot"></div>
|
|
<div class="to-screenshot"></div>
|
|
<div class="to-screenshot"></div>
|
|
`);
|
|
const elementHandle = await page.$('div.to-screenshot');
|
|
const screenshot = await elementHandle.screenshot();
|
|
expect(screenshot).toMatchImage(golden('screenshot-element-larger-than-viewport.png'));
|
|
|
|
await verifyViewport(page, 500, 500);
|
|
});
|
|
|
|
it('should scroll element into view', async ({page, golden}) => {
|
|
await page.setViewportSize({width: 500, height: 500});
|
|
await page.setContent(`
|
|
<div style="height: 14px">oooo</div>
|
|
<style>div.above {
|
|
border: 2px solid blue;
|
|
background: red;
|
|
height: 1500px;
|
|
}
|
|
div.to-screenshot {
|
|
border: 2px solid blue;
|
|
background: green;
|
|
width: 50px;
|
|
height: 50px;
|
|
}
|
|
</style>
|
|
<div class="above"></div>
|
|
<div class="to-screenshot"></div>
|
|
`);
|
|
const elementHandle = await page.$('div.to-screenshot');
|
|
const screenshot = await elementHandle.screenshot();
|
|
expect(screenshot).toMatchImage(golden('screenshot-element-scrolled-into-view.png'));
|
|
});
|
|
|
|
it('should scroll 15000px into view', async ({page, golden}) => {
|
|
await page.setViewportSize({width: 500, height: 500});
|
|
await page.setContent(`
|
|
<div style="height: 14px">oooo</div>
|
|
<style>div.above {
|
|
border: 2px solid blue;
|
|
background: red;
|
|
height: 15000px;
|
|
}
|
|
div.to-screenshot {
|
|
border: 2px solid blue;
|
|
background: green;
|
|
width: 50px;
|
|
height: 50px;
|
|
}
|
|
</style>
|
|
<div class="above"></div>
|
|
<div class="to-screenshot"></div>
|
|
`);
|
|
const elementHandle = await page.$('div.to-screenshot');
|
|
const screenshot = await elementHandle.screenshot();
|
|
expect(screenshot).toMatchImage(golden('screenshot-element-scrolled-into-view.png'));
|
|
});
|
|
|
|
it('should work with a rotated element', async ({page, golden}) => {
|
|
await page.setViewportSize({width: 500, height: 500});
|
|
await page.setContent(`<div style="position:absolute;
|
|
top: 100px;
|
|
left: 100px;
|
|
width: 100px;
|
|
height: 100px;
|
|
background: green;
|
|
transform: rotateZ(200deg);"> </div>`);
|
|
const elementHandle = await page.$('div');
|
|
const screenshot = await elementHandle.screenshot();
|
|
expect(screenshot).toMatchImage(golden('screenshot-element-rotate.png'));
|
|
});
|
|
|
|
it('should fail to screenshot a detached element', async ({page, server}) => {
|
|
await page.setContent('<h1>remove this</h1>');
|
|
const elementHandle = await page.$('h1');
|
|
await page.evaluate(element => element.remove(), elementHandle);
|
|
const screenshotError = await elementHandle.screenshot().catch(error => error);
|
|
expect(screenshotError.message).toContain('Element is not attached to the DOM');
|
|
});
|
|
|
|
it('should timeout waiting for visible', async ({page, server}) => {
|
|
await page.setContent('<div style="width: 50px; height: 0"></div>');
|
|
const div = await page.$('div');
|
|
const error = await div.screenshot({ timeout: 3000 }).catch(e => e);
|
|
expect(error.message).toContain('elementHandle.screenshot: Timeout 3000ms exceeded');
|
|
expect(error.message).toContain('element is not visible');
|
|
});
|
|
|
|
it('should wait for visible', async ({page, server, golden}) => {
|
|
await page.setViewportSize({width: 500, height: 500});
|
|
await page.goto(server.PREFIX + '/grid.html');
|
|
await page.evaluate(() => window.scrollBy(50, 100));
|
|
const elementHandle = await page.$('.box:nth-of-type(3)');
|
|
await elementHandle.evaluate(e => e.style.visibility = 'hidden');
|
|
let done = false;
|
|
const promise = elementHandle.screenshot().then(buffer => {
|
|
done = true;
|
|
return buffer;
|
|
});
|
|
for (let i = 0; i < 10; i++)
|
|
await page.evaluate(() => new Promise(f => requestAnimationFrame(f)));
|
|
expect(done).toBe(false);
|
|
await elementHandle.evaluate(e => e.style.visibility = 'visible');
|
|
const screenshot = await promise;
|
|
expect(screenshot).toMatchImage(golden('screenshot-element-bounding-box.png'));
|
|
});
|
|
|
|
it('should work for an element with fractional dimensions', async ({page, golden}) => {
|
|
await page.setContent('<div style="width:48.51px;height:19.8px;border:1px solid black;"></div>');
|
|
const elementHandle = await page.$('div');
|
|
const screenshot = await elementHandle.screenshot();
|
|
expect(screenshot).toMatchImage(golden('screenshot-element-fractional.png'));
|
|
});
|
|
|
|
it('should work with a mobile viewport', (test, parameters) => {
|
|
test.skip(options.FIREFOX(parameters));
|
|
}, async ({browser, server, golden}) => {
|
|
const context = await browser.newContext({viewport: { width: 320, height: 480 }, isMobile: true});
|
|
const page = await context.newPage();
|
|
await page.goto(server.PREFIX + '/grid.html');
|
|
await page.evaluate(() => window.scrollBy(50, 100));
|
|
const elementHandle = await page.$('.box:nth-of-type(3)');
|
|
const screenshot = await elementHandle.screenshot();
|
|
expect(screenshot).toMatchImage(golden('screenshot-element-mobile.png'));
|
|
await context.close();
|
|
});
|
|
|
|
it('should work with device scale factor', (test, parameters) => {
|
|
test.skip(options.FIREFOX(parameters));
|
|
}, async ({browser, server, golden}) => {
|
|
const context = await browser.newContext({ viewport: { width: 320, height: 480 }, deviceScaleFactor: 2 });
|
|
const page = await context.newPage();
|
|
await page.goto(server.PREFIX + '/grid.html');
|
|
await page.evaluate(() => window.scrollBy(50, 100));
|
|
const elementHandle = await page.$('.box:nth-of-type(3)');
|
|
const screenshot = await elementHandle.screenshot();
|
|
expect(screenshot).toMatchImage(golden('screenshot-element-mobile-dsf.png'));
|
|
await context.close();
|
|
});
|
|
|
|
it('should work for an element with an offset', async ({page, golden}) => {
|
|
await page.setContent('<div style="position:absolute; top: 10.3px; left: 20.4px;width:50.3px;height:20.2px;border:1px solid black;"></div>');
|
|
const elementHandle = await page.$('div');
|
|
const screenshot = await elementHandle.screenshot();
|
|
expect(screenshot).toMatchImage(golden('screenshot-element-fractional-offset.png'));
|
|
});
|
|
|
|
it('should take screenshots when default viewport is null', async ({server, browser}) => {
|
|
const context = await browser.newContext({ viewport: null });
|
|
const page = await context.newPage();
|
|
await page.setContent(`<div style='height: 10000px; background: red'></div>`);
|
|
const windowSize = await page.evaluate(() => ({ width: window.innerWidth * window.devicePixelRatio, height: window.innerHeight * window.devicePixelRatio }));
|
|
const sizeBefore = await page.evaluate(() => ({ width: document.body.offsetWidth, height: document.body.offsetHeight }));
|
|
|
|
const screenshot = await page.screenshot();
|
|
expect(screenshot).toBeInstanceOf(Buffer);
|
|
const decoded = PNG.sync.read(screenshot);
|
|
expect(decoded.width).toBe(windowSize.width);
|
|
expect(decoded.height).toBe(windowSize.height);
|
|
|
|
const sizeAfter = await page.evaluate(() => ({ width: document.body.offsetWidth, height: document.body.offsetHeight }));
|
|
expect(sizeBefore.width).toBe(sizeAfter.width);
|
|
expect(sizeBefore.height).toBe(sizeAfter.height);
|
|
await context.close();
|
|
});
|
|
|
|
it('should take fullPage screenshots when default viewport is null', async ({server, browser}) => {
|
|
const context = await browser.newContext({ viewport: null });
|
|
const page = await context.newPage();
|
|
await page.goto(server.PREFIX + '/grid.html');
|
|
const sizeBefore = await page.evaluate(() => ({ width: document.body.offsetWidth, height: document.body.offsetHeight }));
|
|
const screenshot = await page.screenshot({
|
|
fullPage: true
|
|
});
|
|
expect(screenshot).toBeInstanceOf(Buffer);
|
|
|
|
const sizeAfter = await page.evaluate(() => ({ width: document.body.offsetWidth, height: document.body.offsetHeight }));
|
|
expect(sizeBefore.width).toBe(sizeAfter.width);
|
|
expect(sizeBefore.height).toBe(sizeAfter.height);
|
|
await context.close();
|
|
});
|
|
|
|
it('should restore default viewport after fullPage screenshot', async ({ browser }) => {
|
|
const context = await browser.newContext({ viewport: { width: 456, height: 789 } });
|
|
const page = await context.newPage();
|
|
await verifyViewport(page, 456, 789);
|
|
const screenshot = await page.screenshot({ fullPage: true });
|
|
expect(screenshot).toBeInstanceOf(Buffer);
|
|
await verifyViewport(page, 456, 789);
|
|
await context.close();
|
|
});
|
|
|
|
it('should restore viewport after page screenshot and exception', (test, parameters) => {
|
|
test.skip(options.WIRE);
|
|
}, async ({ browser, server }) => {
|
|
const context = await browser.newContext({ viewport: { width: 350, height: 360 } });
|
|
const page = await context.newPage();
|
|
await page.goto(server.PREFIX + '/grid.html');
|
|
const __testHookBeforeScreenshot = () => { throw new Error('oh my'); };
|
|
const error = await page.screenshot({ fullPage: true, __testHookBeforeScreenshot } as any).catch(e => e);
|
|
expect(error.message).toContain('oh my');
|
|
await verifyViewport(page, 350, 360);
|
|
await context.close();
|
|
});
|
|
|
|
it('should restore viewport after page screenshot and timeout', (test, parameters) => {
|
|
test.skip(options.WIRE);
|
|
}, async ({ browser, server }) => {
|
|
const context = await browser.newContext({ viewport: { width: 350, height: 360 } });
|
|
const page = await context.newPage();
|
|
await page.goto(server.PREFIX + '/grid.html');
|
|
const __testHookAfterScreenshot = () => new Promise(f => setTimeout(f, 5000));
|
|
const error = await page.screenshot({ fullPage: true, __testHookAfterScreenshot, timeout: 3000 } as any).catch(e => e);
|
|
expect(error.message).toContain('page.screenshot: Timeout 3000ms exceeded');
|
|
await verifyViewport(page, 350, 360);
|
|
await page.setViewportSize({ width: 400, height: 400 });
|
|
await page.waitForTimeout(3000); // Give it some time to wrongly restore previous viewport.
|
|
await verifyViewport(page, 400, 400);
|
|
await context.close();
|
|
});
|
|
|
|
it('should take element screenshot when default viewport is null and restore back', async ({server, browser}) => {
|
|
const context = await browser.newContext({viewport: null});
|
|
const page = await context.newPage();
|
|
await page.setContent(`
|
|
<div style="height: 14px">oooo</div>
|
|
<style>
|
|
div.to-screenshot {
|
|
border: 1px solid blue;
|
|
width: 600px;
|
|
height: 600px;
|
|
margin-left: 50px;
|
|
}
|
|
::-webkit-scrollbar{
|
|
display: none;
|
|
}
|
|
</style>
|
|
<div class="to-screenshot"></div>
|
|
<div class="to-screenshot"></div>
|
|
<div class="to-screenshot"></div>
|
|
`);
|
|
const sizeBefore = await page.evaluate(() => ({ width: document.body.offsetWidth, height: document.body.offsetHeight }));
|
|
const elementHandle = await page.$('div.to-screenshot');
|
|
const screenshot = await elementHandle.screenshot();
|
|
expect(screenshot).toBeInstanceOf(Buffer);
|
|
const sizeAfter = await page.evaluate(() => ({ width: document.body.offsetWidth, height: document.body.offsetHeight }));
|
|
expect(sizeBefore.width).toBe(sizeAfter.width);
|
|
expect(sizeBefore.height).toBe(sizeAfter.height);
|
|
await context.close();
|
|
});
|
|
|
|
it('should restore viewport after element screenshot and exception', (test, parameters) => {
|
|
test.skip(options.WIRE);
|
|
}, async ({browser}) => {
|
|
const context = await browser.newContext({ viewport: { width: 350, height: 360 } });
|
|
const page = await context.newPage();
|
|
await page.setContent(`<div style="width:600px;height:600px;"></div>`);
|
|
const elementHandle = await page.$('div');
|
|
const __testHookBeforeScreenshot = () => { throw new Error('oh my'); };
|
|
const error = await elementHandle.screenshot({ __testHookBeforeScreenshot } as any).catch(e => e);
|
|
expect(error.message).toContain('oh my');
|
|
await verifyViewport(page, 350, 360);
|
|
await context.close();
|
|
});
|
|
|
|
it('should wait for element to stop moving', (test, parameters) => {
|
|
test.flaky(options.WEBKIT(parameters) && !options.HEADLESS && options.LINUX(parameters));
|
|
}, async ({ page, server, golden }) => {
|
|
await page.setViewportSize({ width: 500, height: 500 });
|
|
await page.goto(server.PREFIX + '/grid.html');
|
|
const elementHandle = await page.$('.box:nth-of-type(3)');
|
|
await elementHandle.evaluate(e => {
|
|
e.classList.add('animation');
|
|
return new Promise(f => requestAnimationFrame(() => requestAnimationFrame(f)));
|
|
});
|
|
const screenshot = await elementHandle.screenshot();
|
|
expect(screenshot).toMatchImage(golden('screenshot-element-bounding-box.png'));
|
|
});
|
|
|
|
it('should take screenshot of disabled button', async ({page}) => {
|
|
await page.setViewportSize({ width: 500, height: 500 });
|
|
await page.setContent(`<button disabled>Click me</button>`);
|
|
const button = await page.$('button');
|
|
const screenshot = await button.screenshot();
|
|
expect(screenshot).toBeInstanceOf(Buffer);
|
|
});
|
|
|
|
it('path option should create subdirectories', async ({page, server, golden, testOutputDir}) => {
|
|
await page.setViewportSize({width: 500, height: 500});
|
|
await page.goto(server.PREFIX + '/grid.html');
|
|
await page.evaluate(() => window.scrollBy(50, 100));
|
|
const elementHandle = await page.$('.box:nth-of-type(3)');
|
|
const outputPath = path.join(testOutputDir, 'these', 'are', 'directories', 'screenshot.png');
|
|
await elementHandle.screenshot({path: outputPath});
|
|
expect(await fs.promises.readFile(outputPath)).toMatchImage(golden('screenshot-element-bounding-box.png'));
|
|
});
|
|
});
|