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How to use Read method of Microsoft.Playwright.Core.WritableStream class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Core.WritableStream.Read

ElementHandleChannel.cs

Source:ElementHandleChannel.cs

...279                ["timeout"] = timeout,280            };281            return Connection.SendMessageToServerAsync<ElementHandleChannel>(Guid, "selectText", args);282        }283        internal async Task<IReadOnlyList<string>> SelectOptionAsync(object values, bool? noWaitAfter = null, bool? force = null, float? timeout = null)284        {285            var args = new Dictionary<string, object>();286            if (values is IElementHandle[])287            {288                args["elements"] = values;289            }290            else291            {292                args["options"] = values;293            }294            args["force"] = force;295            args["timeout"] = timeout;296            args["noWaitAfter"] = noWaitAfter;297            return (await Connection.SendMessageToServerAsync(Guid, "selectOption", args).ConfigureAwait(false))?.GetProperty("values").ToObject<List<string>>().AsReadOnly();298        }299        internal async Task<bool> IsVisibleAsync()300            => (await Connection.SendMessageToServerAsync(Guid, "isVisible", null).ConfigureAwait(false))?.GetProperty("value").GetBoolean() ?? default;301        internal async Task<bool> IsHiddenAsync()302            => (await Connection.SendMessageToServerAsync(Guid, "isHidden", null).ConfigureAwait(false))?.GetProperty("value").GetBoolean() ?? default;303        internal async Task<bool> IsEnabledAsync()304            => (await Connection.SendMessageToServerAsync(Guid, "isEnabled", null).ConfigureAwait(false))?.GetProperty("value").GetBoolean() ?? default;305        internal async Task<bool> IsEditableAsync()306            => (await Connection.SendMessageToServerAsync(Guid, "isEditable", null).ConfigureAwait(false))?.GetProperty("value").GetBoolean() ?? default;307        internal async Task<bool> IsDisabledAsync()308            => (await Connection.SendMessageToServerAsync(Guid, "isDisabled", null).ConfigureAwait(false))?.GetProperty("value").GetBoolean() ?? default;309        internal async Task<string> InputValueAsync(float? timeout)310        {311            var args = new Dictionary<string, object>()...

WritableStream.cs

Source:WritableStream.cs

...49        internal WritableStreamImpl(WritableStream stream)50        {51            _stream = stream;52        }53        public override bool CanRead => throw new NotImplementedException();54        public override bool CanSeek => throw new NotImplementedException();55        public override bool CanWrite => true;56        public override long Length => throw new NotImplementedException();57        public override long Position { get => throw new NotImplementedException(); set => throw new NotImplementedException(); }58        public override void Flush() => throw new NotImplementedException();59        public override int Read(byte[] buffer, int offset, int count) => throw new NotImplementedException();60        public override Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken) =>61            throw new NotImplementedException();62        public override void Close() => _stream.CloseAsync().ConfigureAwait(false);63        public override long Seek(long offset, SeekOrigin origin) => throw new NotImplementedException();64        public override void SetLength(long value) => throw new NotImplementedException();65        public override void Write(byte[] buffer, int offset, int count) => throw new NotImplementedException();66        public override async Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)67        {68            await this._stream.WriteAsync(Convert.ToBase64String(buffer)).ConfigureAwait(false);69        }70    }71}...

Read

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Core;5{6    {7        static async Task Main(string[] args)8        {9            await using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync();11            var page = await browser.NewPageAsync();12            var stream = await page.EvaluateHandleAsync<WritableStream>("() => document.createDocumentFragment().appendChild(document.createElement('script')).srcObject = new MediaSource();");13            var bytes = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x61, 0x76, 0x63, 0x31 };14            await stream.ReadAsync(bytes);15        }16    }17}18using System;19using System.Threading.Tasks;20using Microsoft.Playwright;21using Microsoft.Playwright.Core;22{23    {24        static async Task Main(string[] args)25        {26            await using var playwright = await Playwright.CreateAsync();27            await using var browser = await playwright.Chromium.LaunchAsync();28            var page = await browser.NewPageAsync();29            var stream = await page.EvaluateHandleAsync<ReadableStream>("() => new ReadableStream()");30            var bytes = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x61, 0x76, 0x63, 0x31 };31            await stream.WriteAsync(bytes);32        }33    }34}35using System;36using System.Threading.Tasks;37using Microsoft.Playwright;38using Microsoft.Playwright.Core;39{40    {41        static async Task Main(string[] args)42        {43            await using var playwright = await Playwright.CreateAsync();44            await using var browser = await playwright.Chromium.LaunchAsync();45            var page = await browser.NewPageAsync();

Read

Using AI Code Generation

1using Microsoft.Playwright.Core;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var playwright = await Playwright.CreateAsync();9            var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions10            {11            });12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            var stream = await page.EvaluateHandleAsync("() => document.querySelector('title').innerHTML");15            var readableStream = stream.AsReadableStream();16            var readableStreamReader = readableStream.GetReader();17            var result = await readableStreamReader.ReadAsync();18            Console.WriteLine(result.Value);19            await browser.CloseAsync();20        }21    }22}

Read

Using AI Code Generation

1using System;2using System.Collections.Generic;3using Microsoft.Playwright;4using Microsoft.Playwright.Core;5{6    {7        static async System.Threading.Tasks.Task Main(string[] args)8        {9            using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });11            var page = await browser.NewPageAsync();12            await page.ClickAsync("text=Sign in");13            await page.ClickAsync("text=Create an account");14            await page.FillAsync("input[name=\"firstName\"]", "FirstName");15            await page.FillAsync("input[name=\"lastName\"]", "LastName");16            await page.FillAsync("input[name=\"Username\"]", "UserName");17            await page.FillAsync("input[name=\"Passwd\"]", "Password");18            await page.FillAsync("input[name=\"ConfirmPasswd\"]", "Password");19            await page.ClickAsync("text=Next");20            await page.ClickAsync("text=Next");21            await page.ClickAsync("text=I agree");22            await page.ClickAsync("text=Next");

Read

Using AI Code Generation

1using Microsoft.Playwright;2using System.Threading.Tasks;3using System;4using System.IO;5using System.Threading;6{7    {8        static async Task Main(string[] args)9        {10            using var playwright = await Playwright.CreateAsync();11            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });12            var context = await browser.NewContextAsync();13            var page = await context.NewPageAsync();14            await page.SetContentAsync(@"15            var stream = new WritableStream({16                write(chunk) {17                document.body.innerHTML += chunk;18                }19            });20            var writer = stream.getWriter();21            writer.write('Hello, ');22            writer.write('world!');23            writer.close();24            ");25            var stream = await page.EvaluateHandleAsync("stream");26            var reader = await stream.GetPropertyAsync("getReader");27            var read = await reader.CallAsync("call", stream);28            await read.GetPropertyAsync("value");29            await Task.Delay(1000);30            await browser.CloseAsync();31        }32    }33}34await page.ClickAsync("text=Download");35var downloadPath = Path.Combine(Directory.GetCurrentDirectory(), "Downloads");36var fileName = "Sample.pdf";37var filePath = Path.Combine(downloadPath, fileName);38Assert.True(File.Exists(filePath));39Assert.True() Failure

Read

Using AI Code Generation

1var data = await stream.ReadAsync();2var dataString = Encoding.UTF8.GetString(data);3Console.WriteLine(dataString);4var data = await stream.ReadAsync();5var dataString = Encoding.UTF8.GetString(data);6Console.WriteLine(dataString);7var data = await stream.ReadAsync();8var dataString = Encoding.UTF8.GetString(data);9Console.WriteLine(dataString);10var data = await stream.ReadAsync();11var dataString = Encoding.UTF8.GetString(data);12Console.WriteLine(dataString);13var data = await stream.ReadAsync();14var dataString = Encoding.UTF8.GetString(data);15Console.WriteLine(dataString);16var data = await stream.ReadAsync();17var dataString = Encoding.UTF8.GetString(data);18Console.WriteLine(dataString);19var data = await stream.ReadAsync();20var dataString = Encoding.UTF8.GetString(data);21Console.WriteLine(dataString);22var data = await stream.ReadAsync();23var dataString = Encoding.UTF8.GetString(data);24Console.WriteLine(dataString);

Read

Using AI Code Generation

1var stream = await page.CreateWritableStreamAsync();2var stream = await page.CreateWritableStreamAsync();3var stream = await page.CreateWritableStreamAsync();4var stream = await page.CreateWritableStreamAsync();5var stream = await page.CreateWritableStreamAsync();6var stream = await page.CreateWritableStreamAsync();

Read

Using AI Code Generation

1await using var stream = await page.Context.NewPageAsync();2await page.ClickAsync("text=\"Sign in\"");3await page.ClickAsync("text=\"Create account\"");4await page.FillAsync("input[name=\"firstName\"]", "John");5await page.FillAsync("input[name=\"lastName\"]", "Doe");6await page.FillAsync("input[name=\"Username\"]", "johndoe");7await page.FillAsync("input[name=\"Passwd\"]", "12345");8await page.FillAsync("input[name=\"ConfirmPasswd\"]", "12345");9await page.ClickAsync("text=\"Next\"");10await page.ClickAsync("text=\"I agree\"");

Read

Using AI Code Generation

1var readableStream = stream.Body;2var writableStream = new WritableStream();3await readableStream.ReadAsync(writableStream);4var text = await writableStream.ReadTextAsync();5Console.WriteLine(text);6var readableStream = stream.Body;7var writableStream = new WritableStream();8await readableStream.ReadAsync(writableStream);9var text = await writableStream.ReadTextAsync();10Console.WriteLine(text);11var readableStream = stream.Body;12var writableStream = new WritableStream();13await readableStream.ReadAsync(writableStream);14var text = await writableStream.ReadTextAsync();15Console.WriteLine(text);16var readableStream = stream.Body;17var writableStream = new WritableStream();18await readableStream.ReadAsync(writableStream);19var text = await writableStream.ReadTextAsync();20Console.WriteLine(text);

Playwright tutorial

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.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.