mirror of
https://github.com/microsoft/playwright.git
synced 2024-12-14 13:45:36 +03:00
7527ad27d3
We never marked empty stylesheets as "stale", so we never computed css text for them. This prevented node reuse, because empty string is not equal to undefined.
230 lines
11 KiB
TypeScript
230 lines
11 KiB
TypeScript
/**
|
|
* 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 { contextTest, expect } from './config/browserTest';
|
|
import { InMemorySnapshotter } from '../packages/playwright-core/lib/web/traceViewer/inMemorySnapshotter';
|
|
|
|
const it = contextTest.extend<{ snapshotter: InMemorySnapshotter }>({
|
|
snapshotter: async ({ mode, toImpl, context }, run, testInfo) => {
|
|
testInfo.skip(mode !== 'default');
|
|
const snapshotter = new InMemorySnapshotter(toImpl(context));
|
|
await snapshotter.initialize();
|
|
await run(snapshotter);
|
|
await snapshotter.dispose();
|
|
},
|
|
});
|
|
|
|
it.describe('snapshots', () => {
|
|
it('should collect snapshot', async ({ page, toImpl, snapshotter }) => {
|
|
await page.setContent('<button>Hello</button>');
|
|
const snapshot = await snapshotter.captureSnapshot(toImpl(page), 'snapshot');
|
|
expect(distillSnapshot(snapshot)).toBe('<BUTTON>Hello</BUTTON>');
|
|
});
|
|
|
|
it('should preserve BASE and other content on reset', async ({ page, toImpl, snapshotter, server }) => {
|
|
await page.goto(server.EMPTY_PAGE);
|
|
const snapshot1 = await snapshotter.captureSnapshot(toImpl(page), 'snapshot1');
|
|
const html1 = snapshot1.render().html;
|
|
expect(html1).toContain(`<BASE href="${server.EMPTY_PAGE}"`);
|
|
await snapshotter.reset();
|
|
const snapshot2 = await snapshotter.captureSnapshot(toImpl(page), 'snapshot2');
|
|
const html2 = snapshot2.render().html;
|
|
expect(html2.replace(`"snapshot2"`, `"snapshot1"`)).toEqual(html1);
|
|
});
|
|
|
|
it('should capture resources', async ({ page, toImpl, server, snapshotter }) => {
|
|
await page.goto(server.EMPTY_PAGE);
|
|
await page.route('**/style.css', route => {
|
|
route.fulfill({ body: 'button { color: red; }', }).catch(() => {});
|
|
});
|
|
await page.setContent('<link rel="stylesheet" href="style.css"><button>Hello</button>');
|
|
const snapshot = await snapshotter.captureSnapshot(toImpl(page), 'snapshot');
|
|
const resource = snapshot.resourceByUrl(`http://localhost:${server.PORT}/style.css`);
|
|
expect(resource).toBeTruthy();
|
|
});
|
|
|
|
it('should collect multiple', async ({ page, toImpl, snapshotter }) => {
|
|
await page.setContent('<button>Hello</button>');
|
|
const snapshots = [];
|
|
snapshotter.on('snapshot', snapshot => snapshots.push(snapshot));
|
|
await snapshotter.captureSnapshot(toImpl(page), 'snapshot1');
|
|
await snapshotter.captureSnapshot(toImpl(page), 'snapshot2');
|
|
expect(snapshots.length).toBe(2);
|
|
});
|
|
|
|
it('should respect inline CSSOM change', async ({ page, toImpl, snapshotter }) => {
|
|
await page.setContent('<style>button { color: red; }</style><button>Hello</button>');
|
|
const snapshot1 = await snapshotter.captureSnapshot(toImpl(page), 'snapshot1');
|
|
expect(distillSnapshot(snapshot1)).toBe('<style>button { color: red; }</style><BUTTON>Hello</BUTTON>');
|
|
|
|
await page.evaluate(() => { (document.styleSheets[0].cssRules[0] as any).style.color = 'blue'; });
|
|
const snapshot2 = await snapshotter.captureSnapshot(toImpl(page), 'snapshot2');
|
|
expect(distillSnapshot(snapshot2)).toBe('<style>button { color: blue; }</style><BUTTON>Hello</BUTTON>');
|
|
});
|
|
|
|
it('should respect node removal', async ({ page, toImpl, snapshotter }) => {
|
|
page.on('console', console.log);
|
|
await page.setContent('<div><button id="button1"></button><button id="button2"></button></div>');
|
|
const snapshot1 = await snapshotter.captureSnapshot(toImpl(page), 'snapshot1');
|
|
expect(distillSnapshot(snapshot1)).toBe('<DIV><BUTTON id=\"button1\"></BUTTON><BUTTON id=\"button2\"></BUTTON></DIV>');
|
|
await page.evaluate(() => document.getElementById('button2').remove());
|
|
const snapshot2 = await snapshotter.captureSnapshot(toImpl(page), 'snapshot2');
|
|
expect(distillSnapshot(snapshot2)).toBe('<DIV><BUTTON id=\"button1\"></BUTTON></DIV>');
|
|
});
|
|
|
|
it('should respect attr removal', async ({ page, toImpl, snapshotter }) => {
|
|
page.on('console', console.log);
|
|
await page.setContent('<div id="div" attr1="1" attr2="2"></div>');
|
|
const snapshot1 = await snapshotter.captureSnapshot(toImpl(page), 'snapshot1');
|
|
expect(distillSnapshot(snapshot1)).toBe('<DIV id=\"div\" attr1=\"1\" attr2=\"2\"></DIV>');
|
|
await page.evaluate(() => document.getElementById('div').removeAttribute('attr2'));
|
|
const snapshot2 = await snapshotter.captureSnapshot(toImpl(page), 'snapshot2');
|
|
expect(distillSnapshot(snapshot2)).toBe('<DIV id=\"div\" attr1=\"1\"></DIV>');
|
|
});
|
|
|
|
it('should have a custom doctype', async ({ page, server, toImpl, snapshotter }) => {
|
|
await page.goto(server.EMPTY_PAGE);
|
|
await page.setContent('<!DOCTYPE foo><body>hi</body>');
|
|
|
|
const snapshot = await snapshotter.captureSnapshot(toImpl(page), 'snapshot');
|
|
expect(distillSnapshot(snapshot)).toBe('<!DOCTYPE foo>hi');
|
|
});
|
|
|
|
it('should respect subresource CSSOM change', async ({ page, server, toImpl, snapshotter }) => {
|
|
await page.goto(server.EMPTY_PAGE);
|
|
await page.route('**/style.css', route => {
|
|
route.fulfill({ body: 'button { color: red; }', }).catch(() => {});
|
|
});
|
|
await page.setContent('<link rel="stylesheet" href="style.css"><button>Hello</button>');
|
|
|
|
const snapshot1 = await snapshotter.captureSnapshot(toImpl(page), 'snapshot1');
|
|
expect(distillSnapshot(snapshot1)).toBe('<LINK rel=\"stylesheet\" href=\"style.css\"><BUTTON>Hello</BUTTON>');
|
|
|
|
await page.evaluate(() => { (document.styleSheets[0].cssRules[0] as any).style.color = 'blue'; });
|
|
const snapshot2 = await snapshotter.captureSnapshot(toImpl(page), 'snapshot1');
|
|
const resource = snapshot2.resourceByUrl(`http://localhost:${server.PORT}/style.css`);
|
|
expect((await snapshotter.resourceContentForTest(resource.response.content._sha1)).toString()).toBe('button { color: blue; }');
|
|
});
|
|
|
|
it('should capture iframe', async ({ page, server, toImpl, browserName, snapshotter }) => {
|
|
it.skip(browserName === 'firefox');
|
|
|
|
await page.route('**/empty.html', route => {
|
|
route.fulfill({
|
|
body: '<iframe src="iframe.html"></iframe>',
|
|
contentType: 'text/html'
|
|
}).catch(() => {});
|
|
});
|
|
await page.route('**/iframe.html', route => {
|
|
route.fulfill({
|
|
body: '<html><button>Hello iframe</button></html>',
|
|
contentType: 'text/html'
|
|
}).catch(() => {});
|
|
});
|
|
await page.goto(server.EMPTY_PAGE);
|
|
|
|
// Marking iframe hierarchy is racy, do not expect snapshot, wait for it.
|
|
let counter = 0;
|
|
let snapshot: any;
|
|
for (; ; ++counter) {
|
|
snapshot = await snapshotter.captureSnapshot(toImpl(page), 'snapshot' + counter);
|
|
const text = distillSnapshot(snapshot).replace(/frame@[^"]+["]/, '<id>"');
|
|
if (text === '<IFRAME src=\"/snapshot/<id>\"></IFRAME>')
|
|
break;
|
|
await page.waitForTimeout(250);
|
|
}
|
|
});
|
|
|
|
it('should capture snapshot target', async ({ page, toImpl, snapshotter }) => {
|
|
await page.setContent('<button>Hello</button><button>World</button>');
|
|
{
|
|
const handle = await page.$('text=Hello');
|
|
const snapshot = await snapshotter.captureSnapshot(toImpl(page), 'snapshot', toImpl(handle));
|
|
expect(distillSnapshot(snapshot, false /* distillTarget */)).toBe('<BUTTON __playwright_target__=\"snapshot\">Hello</BUTTON><BUTTON>World</BUTTON>');
|
|
}
|
|
{
|
|
const handle = await page.$('text=World');
|
|
const snapshot = await snapshotter.captureSnapshot(toImpl(page), 'snapshot2', toImpl(handle));
|
|
expect(distillSnapshot(snapshot, false /* distillTarget */)).toBe('<BUTTON __playwright_target__=\"snapshot\">Hello</BUTTON><BUTTON __playwright_target__=\"snapshot2\">World</BUTTON>');
|
|
}
|
|
});
|
|
|
|
it('should collect on attribute change', async ({ page, toImpl, snapshotter }) => {
|
|
await page.setContent('<button>Hello</button>');
|
|
{
|
|
const snapshot = await snapshotter.captureSnapshot(toImpl(page), 'snapshot');
|
|
expect(distillSnapshot(snapshot)).toBe('<BUTTON>Hello</BUTTON>');
|
|
}
|
|
const handle = await page.$('text=Hello')!;
|
|
await handle.evaluate(element => element.setAttribute('data', 'one'));
|
|
{
|
|
const snapshot = await snapshotter.captureSnapshot(toImpl(page), 'snapshot2');
|
|
expect(distillSnapshot(snapshot)).toBe('<BUTTON data="one">Hello</BUTTON>');
|
|
}
|
|
await handle.evaluate(element => element.setAttribute('data', 'two'));
|
|
{
|
|
const snapshot = await snapshotter.captureSnapshot(toImpl(page), 'snapshot2');
|
|
expect(distillSnapshot(snapshot)).toBe('<BUTTON data="two">Hello</BUTTON>');
|
|
}
|
|
});
|
|
|
|
it('empty adopted style sheets should not prevent node refs', async ({ page, toImpl, snapshotter, browserName }) => {
|
|
it.skip(browserName !== 'chromium', 'Constructed stylesheets are only in Chromium.');
|
|
|
|
await page.setContent('<button>Hello</button>');
|
|
await page.evaluate(() => {
|
|
const sheet = new CSSStyleSheet();
|
|
(document as any).adoptedStyleSheets = [sheet];
|
|
|
|
const sheet2 = new CSSStyleSheet();
|
|
for (const element of [document.createElement('div'), document.createElement('span')]) {
|
|
const root = element.attachShadow({
|
|
mode: 'open'
|
|
});
|
|
root.append('foo');
|
|
(root as any).adoptedStyleSheets = [sheet2];
|
|
document.body.appendChild(element);
|
|
}
|
|
});
|
|
|
|
const renderer1 = await snapshotter.captureSnapshot(toImpl(page), 'snapshot1');
|
|
// Expect some adopted style sheets.
|
|
expect(distillSnapshot(renderer1)).toContain('__playwright_style_sheet_');
|
|
|
|
const renderer2 = await snapshotter.captureSnapshot(toImpl(page), 'snapshot2');
|
|
const snapshot2 = renderer2.snapshot();
|
|
// Second snapshot should be just a copy of the first one.
|
|
expect(snapshot2.html).toEqual([[1, 13]]);
|
|
});
|
|
});
|
|
|
|
function distillSnapshot(snapshot, distillTarget = true) {
|
|
let { html } = snapshot.render();
|
|
if (distillTarget)
|
|
html = html.replace(/\s__playwright_target__="[^"]+"/g, '');
|
|
return html
|
|
.replace(/<script>[.\s\S]+<\/script>/, '')
|
|
.replace(/<style>.*__playwright_target__.*<\/style>/, '')
|
|
.replace(/<BASE href="about:blank">/, '')
|
|
.replace(/<BASE href="http:\/\/localhost:[\d]+\/empty.html">/, '')
|
|
.replace(/<HTML>/, '')
|
|
.replace(/<\/HTML>/, '')
|
|
.replace(/<HEAD>/, '')
|
|
.replace(/<\/HEAD>/, '')
|
|
.replace(/<BODY>/, '')
|
|
.replace(/<\/BODY>/, '').trim();
|
|
}
|