Best JavaScript code snippet using playwright-internal
helper.js
Source: helper.js
...162 if (timeoutTimer)163 clearTimeout(timeoutTimer);164 }165}166async function readProtocolStream(client, handle, path) {167 let eof = false;168 let file;169 if (path)170 file = await openAsync(path, 'w');171 const bufs = [];172 while (!eof) {173 const response = await client.send('IO.read', { handle });174 eof = response.eof;175 const buf = Buffer.from(response.data, response.base64Encoded ? 'base64' : undefined);176 bufs.push(buf);177 if (path)178 await writeAsync(file, buf);179 }180 if (path)...
crProtocolHelper.js
Source: crProtocolHelper.js
...44 await client.send('Runtime.releaseObject', {45 objectId46 }).catch(error => {});47}48async function readProtocolStream(client, handle, path) {49 let eof = false;50 let fd;51 if (path) {52 await (0, _utils.mkdirIfNeeded)(path);53 fd = await _fs.default.promises.open(path, 'w');54 }55 const bufs = [];56 while (!eof) {57 const response = await client.send('IO.read', {58 handle59 });60 eof = response.eof;61 const buf = Buffer.from(response.data, response.base64Encoded ? 'base64' : undefined);62 bufs.push(buf);...
Tracing.js
Source: Tracing.js
...54 async stop() {55 let fulfill;56 const contentPromise = new Promise(x => fulfill = x);57 this._client.once('Tracing.tracingComplete', event => {58 helper.readProtocolStream(this._client, event.stream, this._path).then(fulfill);59 });60 await this._client.send('Tracing.end');61 this._recording = false;62 return contentPromise;63 }64}...
Using AI Code Generation
1const fs = require('fs');2const { chromium } = require('playwright');3(async () => {4 const browser = await chromium.launch({ headless: false });5 const context = await browser.newContext();6 const page = await context.newPage();7 const stream = fs.createWriteStream('trace.json');8 await page.tracing.start({ screenshots: true, snapshots: true });9 await page.tracing.stop({ path: stream });10 await browser.close();11})();12const fs = require('fs');13const { chromium } = require('playwright');14(async () => {15 const browser = await chromium.launch({ headless: false });16 const context = await browser.newContext();17 const page = await context.newPage();18 const stream = fs.createWriteStream('trace.json');19 await page.tracing.start({ screenshots: true, snapshots: true });20 await page.tracing.stop({ path: stream });21 await browser.close();22})();23 at Tracing._throwIfAlreadyStarted (C:\Users\ashish\Documents\playwright\playwright\lib\server\tracing\tracing.js:34:11)24 at Tracing.start (C:\Users\ashish\Documents\playwright\playwright\lib\server\tracing\tracing.js:25:14)25 at Page.startTracing (C:\Users\ashish\Documents\playwright\playwright\lib\server\page.js:308:29)26 at Page.startTracing (C:\Users\ashish\Documents\playwright\playwright\lib\server\chromium\chromiumPage.js:34:15)27 at Page.startTracing (C:\Users\ashish\Documents\playwright\playwright\lib\server\firefox\firefoxPage.js:34:15)28 at Page.startTracing (C:\Users\ashish\Documents\playwright\playwright\lib\server\webkit\webkitPage.js:34:15
Using AI Code Generation
1const { readProtocolStream } = require('playwright/lib/server/protocol');2const { createReadStream } = require('fs');3const stream = createReadStream('./protocol.json');4const protocol = await readProtocolStream(stream);5console.log(protocol);6{7 {8 {9 },10 {11 },12 {13 {14 },15 {16 },17 {18 "description": "Line offset of the script within the resource with given URL (for script tags)."19 },20 {21 },22 {23 },24 {25 }26 },27 {28 {29 },30 {31 },32 {
Using AI Code Generation
1const { readProtocolStream } = require('playwright/lib/server/supplements/recorder/recorderApp');2const fs = require('fs');3(async () => {4 const stream = fs.createReadStream('recording.har', { encoding: 'utf-8' });5 const result = await readProtocolStream(stream);6 console.log(result);7})();8export type ProtocolCommand = {9 method: string;10 params: any;11 timestamp: number;12 sessionId?: string;13};14export async function readProtocolStream(stream: Readable) {15 const commands: ProtocolCommand[] = [];16 const parser = new HARParser();17 const har = await parser.parse(stream);18 for (const entry of har.log.entries) {19 for (const command of entry.playwrightCommands) {20 commands.push(command);21 }22 }23 return commands;24}25export class HARParser {26 async parse(stream: Readable) {27 const chunks: Buffer[] = [];28 for await (const chunk of stream)29 chunks.push(chunk);30 const text = Buffer.concat(chunks).toString('utf8');31 return JSON.parse(text);32 }33}34export class HARParser {35 async parse(stream: Readable) {36 const chunks: Buffer[] = [];37 for await (const chunk of stream)38 chunks.push(chunk);39 const text = Buffer.concat(chunks).toString('utf8');40 return JSON.parse(text);41 }42}
Using AI Code Generation
1const fs = require('fs');2const { readProtocolStream } = require('playwright/lib/server/protocol');3const stream = fs.createReadStream('protocol.json');4readProtocolStream(stream).then( protocol => {5 console.log(protocol);6});7const fs = require('fs');8const { readProtocolStream } = require('playwright/lib/server/protocol');9const stream = fs.createReadStream('protocol.json');10stream.on('data', (chunk) => {11 console.log(chunk);12});13const fs = require('fs');14const { readProtocolStream } = require('playwright/lib/server/protocol');15const stream = fs.createReadStream('protocol.json');16stream.on('data', (chunk) => {17 console.log(chunk);18});
firefox browser does not start in playwright
firefox browser does not start in playwright
Jest + Playwright - Test callbacks of event-based DOM library
How to run a list of test suites in a single file concurrently in jest?
Is it possible to get the selector from a locator object in playwright?
Running Playwright in Azure Function
I found the error. It was because of some missing libraries need. I discovered this when I downgraded playwright to version 1.9 and ran the the code then this was the error msg:
(node:12876) UnhandledPromiseRejectionWarning: browserType.launch: Host system is missing dependencies!
Some of the Universal C Runtime files cannot be found on the system. You can fix
that by installing Microsoft Visual C++ Redistributable for Visual Studio from:
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads
Full list of missing libraries:
vcruntime140.dll
msvcp140.dll
Error
at Object.captureStackTrace (D:\Projects\snkrs-play\node_modules\playwright\lib\utils\stackTrace.js:48:19)
at Connection.sendMessageToServer (D:\Projects\snkrs-play\node_modules\playwright\lib\client\connection.js:69:48)
at Proxy.<anonymous> (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:64:61)
at D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:64:67
at BrowserType._wrapApiCall (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:77:34)
at BrowserType.launch (D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:55:21)
at D:\Projects\snkrs-play\index.js:4:35
at Object.<anonymous> (D:\Projects\snkrs-play\index.js:7:3)
at Module._compile (internal/modules/cjs/loader.js:1063:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:12876) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:12876) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
A list of missing libraries was provided. After successful installments, firefox ran fine. I upgraded again to version 1.10 and firefox still works.
Check out the latest blogs from LambdaTest on this topic:
I was once asked at a testing summit, “How do you manage a QA team using scrum?” After some consideration, I realized it would make a good article, so here I am. Understand that the idea behind developing software in a scrum environment is for development teams to self-organize.
As everyone knows, the mobile industry has taken over the world and is the fastest emerging industry in terms of technology and business. It is possible to do all the tasks using a mobile phone, for which earlier we had to use a computer. According to Statista, in 2021, smartphone vendors sold around 1.43 billion smartphones worldwide. The smartphone penetration rate has been continuously rising, reaching 78.05 percent in 2020. By 2025, it is expected that almost 87 percent of all mobile users in the United States will own a smartphone.
The web development industry is growing, and many Best Automated UI Testing Tools are available to test your web-based project to ensure it is bug-free and easily accessible for every user. These tools help you test your web project and make it fully compatible with user-end requirements and needs.
While there is a huge demand and need to run Selenium Test Automation, the experts always suggest not to automate every possible test. Exhaustive Testing is not possible, and Automating everything is not sustainable.
There is just one area where each member of the software testing community has a distinct point of view! Metrics! This contentious issue sparks intense disputes, and most conversations finish with no definitive conclusion. It covers a wide range of topics: How can testing efforts be measured? What is the most effective technique to assess effectiveness? Which of the many components should be quantified? How can we measure the quality of our testing performance, among other things?
LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.
Get 100 minutes of automation test minutes FREE!!