How to use Download class of Microsoft.Playwright.Core package

1// Licensed to the .NET Foundation under one or more agreements.2// The .NET Foundation licenses this file to you under the MIT license.3using System;4using System.Collections.Generic;5using System.IO;6using System.IO.Compression;7using System.Runtime.InteropServices;8using System.Threading;9using System.Threading.Tasks;10#if INSTALLPLAYWRIGHT11using PlaywrightSharp;12#endif13namespace RunTests14{15    public class TestRunner16    {17        public TestRunner(RunTestsOptions options)18        {19            Options = options;20            EnvironmentVariables = new Dictionary<string, string>();21        }22        public RunTestsOptions Options { get; set; }23        public Dictionary<string, string> EnvironmentVariables { get; set; }24        public bool SetupEnvironment()25        {26            try27            {28                EnvironmentVariables.Add("DOTNET_CLI_HOME", Options.HELIX_WORKITEM_ROOT);29                EnvironmentVariables.Add("PATH", Options.Path);30                EnvironmentVariables.Add("helix", Options.HelixQueue);31                Console.WriteLine($"Current Directory: {Options.HELIX_WORKITEM_ROOT}");32                var helixDir = Options.HELIX_WORKITEM_ROOT;33                Console.WriteLine($"Setting HELIX_DIR: {helixDir}");34                EnvironmentVariables.Add("HELIX_DIR", helixDir);35                EnvironmentVariables.Add("NUGET_FALLBACK_PACKAGES", helixDir);36                var nugetRestore = Path.Combine(helixDir, "nugetRestore");37                EnvironmentVariables.Add("NUGET_RESTORE", nugetRestore);38                var dotnetEFFullPath = Path.Combine(nugetRestore, helixDir, "dotnet-ef.exe");39                Console.WriteLine($"Set DotNetEfFullPath: {dotnetEFFullPath}");40                EnvironmentVariables.Add("DotNetEfFullPath", dotnetEFFullPath);41                var appRuntimePath = $"{Options.DotnetRoot}/shared/Microsoft.AspNetCore.App/{Options.RuntimeVersion}";42                Console.WriteLine($"Set ASPNET_RUNTIME_PATH: {appRuntimePath}");43                EnvironmentVariables.Add("ASPNET_RUNTIME_PATH", appRuntimePath);44                var dumpPath = Environment.GetEnvironmentVariable("HELIX_DUMP_FOLDER");45                Console.WriteLine($"Set VSTEST_DUMP_PATH: {dumpPath}");46                EnvironmentVariables.Add("VSTEST_DUMP_PATH", dumpPath);47#if INSTALLPLAYWRIGHT48                // Playwright will download and look for browsers to this directory49                var playwrightBrowsers = Environment.GetEnvironmentVariable("PLAYWRIGHT_BROWSERS_PATH");50                Console.WriteLine($"Setting PLAYWRIGHT_BROWSERS_PATH: {playwrightBrowsers}");51                EnvironmentVariables.Add("PLAYWRIGHT_BROWSERS_PATH", playwrightBrowsers);52                var playrightDriver = Environment.GetEnvironmentVariable("PLAYWRIGHT_DRIVER_PATH");53                Console.WriteLine($"Setting PLAYWRIGHT_DRIVER_PATH: {playrightDriver}");54                EnvironmentVariables.Add("PLAYWRIGHT_DRIVER_PATH", playrightDriver);55#else56                Console.WriteLine($"Skipping setting PLAYWRIGHT_BROWSERS_PATH");57#endif58                Console.WriteLine($"Creating nuget restore directory: {nugetRestore}");59                Directory.CreateDirectory(nugetRestore);60                // Rename default.runner.json to xunit.runner.json if there is not a custom one from the project61                if (!File.Exists("xunit.runner.json"))62                {63                    File.Copy("default.runner.json", "xunit.runner.json");64                }65                DisplayContents(Path.Combine(Options.DotnetRoot, "host", "fxr"));66                DisplayContents(Path.Combine(Options.DotnetRoot, "shared", "Microsoft.NETCore.App"));67                DisplayContents(Path.Combine(Options.DotnetRoot, "shared", "Microsoft.AspNetCore.App"));68                DisplayContents(Path.Combine(Options.DotnetRoot, "packs", "Microsoft.AspNetCore.App.Ref"));69                return true;70            }71            catch (Exception e)72            {73                Console.WriteLine($"Exception in SetupEnvironment: {e.ToString()}");74                return false;75            }76        }77        public void DisplayContents(string path = "./")78        {79            try80            {81                Console.WriteLine();82                Console.WriteLine($"Displaying directory contents for {path}:");83                foreach (var file in Directory.EnumerateFiles(path))84                {85                    Console.WriteLine(Path.GetFileName(file));86                }87                foreach (var file in Directory.EnumerateDirectories(path))88                {89                    Console.WriteLine(Path.GetFileName(file));90                }91                Console.WriteLine();92            }93            catch (Exception e)94            {95                Console.WriteLine($"Exception in DisplayContents: {e.ToString()}");96            }97        }98#if INSTALLPLAYWRIGHT99        public async Task<bool> InstallPlaywrightAsync()100        {101            try102            {103                Console.WriteLine($"Installing Playwright to Browsers: {Environment.GetEnvironmentVariable("PLAYWRIGHT_BROWSERS_PATH")} Driver: {Environment.GetEnvironmentVariable("PLAYWRIGHT_DRIVER_PATH")}");104                await Playwright.InstallAsync(Environment.GetEnvironmentVariable("PLAYWRIGHT_BROWSERS_PATH"), Environment.GetEnvironmentVariable("PLAYWRIGHT_DRIVER_PATH"));105                DisplayContents(Environment.GetEnvironmentVariable("PLAYWRIGHT_BROWSERS_PATH"));106                return true;107            }108            catch (Exception e)109            {110                Console.WriteLine($"Exception installing playwright: {e.ToString()}");111                return false;112            }113        }114#endif115        public async Task<bool> InstallDotnetToolsAsync()116        {117            try118            {119                // Install dotnet-dump first so we can catch any failures from running dotnet after this (installing tools, running tests, etc.)120                await ProcessUtil.RunAsync($"{Options.DotnetRoot}/dotnet",121                    $"tool install dotnet-dump --tool-path {Options.HELIX_WORKITEM_ROOT} --version 5.0.0-*",122                    environmentVariables: EnvironmentVariables,123                    outputDataReceived: Console.WriteLine,124                    errorDataReceived: Console.Error.WriteLine,125                    throwOnError: false,126                    cancellationToken: new CancellationTokenSource(TimeSpan.FromMinutes(2)).Token);127                Console.WriteLine($"Adding current directory to nuget sources: {Options.HELIX_WORKITEM_ROOT}");128                await ProcessUtil.RunAsync($"{Options.DotnetRoot}/dotnet",129                    $"nuget add source {Options.HELIX_WORKITEM_ROOT} --configfile NuGet.config",130                    environmentVariables: EnvironmentVariables,131                    outputDataReceived: Console.WriteLine,132                    errorDataReceived: Console.Error.WriteLine,133                    throwOnError: false,134                    cancellationToken: new CancellationTokenSource(TimeSpan.FromMinutes(2)).Token);135                // Write nuget sources to console, useful for debugging purposes136                await ProcessUtil.RunAsync($"{Options.DotnetRoot}/dotnet",137                    "nuget list source",138                    environmentVariables: EnvironmentVariables,139                    outputDataReceived: Console.WriteLine,140                    errorDataReceived: Console.Error.WriteLine,141                    throwOnError: false,142                    cancellationToken: new CancellationTokenSource(TimeSpan.FromMinutes(2)).Token);143                await ProcessUtil.RunAsync($"{Options.DotnetRoot}/dotnet",144                    $"tool install dotnet-ef --version {Options.EfVersion} --tool-path {Options.HELIX_WORKITEM_ROOT}",145                    environmentVariables: EnvironmentVariables,146                    outputDataReceived: Console.WriteLine,147                    errorDataReceived: Console.Error.WriteLine,148                    throwOnError: false,149                    cancellationToken: new CancellationTokenSource(TimeSpan.FromMinutes(2)).Token);150                await ProcessUtil.RunAsync($"{Options.DotnetRoot}/dotnet",151                    $"tool install dotnet-serve --tool-path {Options.HELIX_WORKITEM_ROOT}",152                    environmentVariables: EnvironmentVariables,153                    outputDataReceived: Console.WriteLine,154                    errorDataReceived: Console.Error.WriteLine,155                    throwOnError: false,156                    cancellationToken: new CancellationTokenSource(TimeSpan.FromMinutes(2)).Token);157                return true;158            }159            catch (Exception e)160            {161                Console.WriteLine($"Exception in InstallDotnetTools: {e}");162                return false;163            }164        }165        public async Task<bool> CheckTestDiscoveryAsync()166        {167            try168            {169                // Run test discovery so we know if there are tests to run170                var discoveryResult = await ProcessUtil.RunAsync($"{Options.DotnetRoot}/dotnet",171                    $"vstest {Options.Target} -lt",172                    environmentVariables: EnvironmentVariables,173                    cancellationToken: new CancellationTokenSource(TimeSpan.FromMinutes(2)).Token);174                if (discoveryResult.StandardOutput.Contains("Exception thrown"))175                {176                    Console.WriteLine("Exception thrown during test discovery.");177                    Console.WriteLine(discoveryResult.StandardOutput);178                    return false;179                }180                return true;181            }182            catch (Exception e)183            {184                Console.WriteLine($"Exception in CheckTestDiscovery: {e.ToString()}");185                return false;186            }187        }188        public async Task<int> RunTestsAsync()189        {190            var exitCode = 0;191            try192            {193                // Timeout test run 5 minutes before the Helix job would timeout194                var cts = new CancellationTokenSource(Options.Timeout.Subtract(TimeSpan.FromMinutes(5)));195                var diagLog = Path.Combine(Environment.GetEnvironmentVariable("HELIX_WORKITEM_UPLOAD_ROOT"), "vstest.log");196                var commonTestArgs = $"test {Options.Target} --diag:{diagLog} --logger:xunit --logger:\"console;verbosity=normal\" --blame \"CollectHangDump;TestTimeout=15m\"";197                if (Options.Quarantined)198                {199                    Console.WriteLine("Running quarantined tests.");200                    // Filter syntax: https://github.com/Microsoft/vstest-docs/blob/master/docs/filter.md201                    var result = await ProcessUtil.RunAsync($"{Options.DotnetRoot}/dotnet",202                        commonTestArgs + " --TestCaseFilter:\"Quarantined=true\"",203                        environmentVariables: EnvironmentVariables,204                        outputDataReceived: Console.WriteLine,205                        errorDataReceived: Console.Error.WriteLine,206                        throwOnError: false,207                        cancellationToken: cts.Token);208                    if (result.ExitCode != 0)209                    {210                        Console.WriteLine($"Failure in quarantined tests. Exit code: {result.ExitCode}.");211                    }212                }213                else214                {215                    Console.WriteLine("Running non-quarantined tests.");216                    // Filter syntax: https://github.com/Microsoft/vstest-docs/blob/master/docs/filter.md217                    var result = await ProcessUtil.RunAsync($"{Options.DotnetRoot}/dotnet",218                        commonTestArgs + " --TestCaseFilter:\"Quarantined!=true|Quarantined=false\"",219                        environmentVariables: EnvironmentVariables,220                        outputDataReceived: Console.WriteLine,221                        errorDataReceived: Console.Error.WriteLine,222                        throwOnError: false,223                        cancellationToken: cts.Token);224                    if (result.ExitCode != 0)225                    {226                        Console.WriteLine($"Failure in non-quarantined tests. Exit code: {result.ExitCode}.");227                        exitCode = result.ExitCode;228                    }229                }230            }231            catch (Exception e)232            {233                Console.WriteLine($"Exception in RunTests: {e.ToString()}");234                exitCode = 1;235            }236            return exitCode;237        }238        public void UploadResults()239        {240            // 'testResults.xml' is the file Helix looks for when processing test results241            Console.WriteLine("Trying to upload results...");242            if (File.Exists("TestResults/TestResults.xml"))243            {244                Console.WriteLine("Copying TestResults/TestResults.xml to ./testResults.xml");245                File.Copy("TestResults/TestResults.xml", "testResults.xml");246            }247            else248            {249                Console.WriteLine("No test results found.");250            }251            var HELIX_WORKITEM_UPLOAD_ROOT = Environment.GetEnvironmentVariable("HELIX_WORKITEM_UPLOAD_ROOT");252            if (string.IsNullOrEmpty(HELIX_WORKITEM_UPLOAD_ROOT))253            {254                Console.WriteLine("No HELIX_WORKITEM_UPLOAD_ROOT specified, skipping log copy");255                return;256            }257            Console.WriteLine($"Copying artifacts/log/ to {HELIX_WORKITEM_UPLOAD_ROOT}/");258            if (Directory.Exists("artifacts/log"))259            {260                foreach (var file in Directory.EnumerateFiles("artifacts/log", "*.log", SearchOption.AllDirectories))261                {262                    // Combine the directory name + log name for the copied log file name to avoid overwriting duplicate test names in different test projects263                    var logName = $"{Path.GetFileName(Path.GetDirectoryName(file))}_{Path.GetFileName(file)}";264                    Console.WriteLine($"Copying: {file} to {Path.Combine(HELIX_WORKITEM_UPLOAD_ROOT, logName)}");265                    File.Copy(file, Path.Combine(HELIX_WORKITEM_UPLOAD_ROOT, logName));266                }267            }268            else269            {270                Console.WriteLine("No logs found in artifacts/log");271            }272            Console.WriteLine($"Copying TestResults/**/Sequence*.xml to {HELIX_WORKITEM_UPLOAD_ROOT}/");273            if (Directory.Exists("TestResults"))274            {275                foreach (var file in Directory.EnumerateFiles("TestResults", "Sequence*.xml", SearchOption.AllDirectories))276                {277                    var fileName = Path.GetFileName(file);278                    Console.WriteLine($"Copying: {file} to {Path.Combine(HELIX_WORKITEM_UPLOAD_ROOT, fileName)}");279                    File.Copy(file, Path.Combine(HELIX_WORKITEM_UPLOAD_ROOT, fileName));280                }281            }282            else283            {284                Console.WriteLine("No TestResults directory found.");285            }286        }287    }288}...

...13using Xunit;14using Xunit.Abstractions;15namespace Microsoft.AspNetCore.Components.E2ETest.Tests16{17    public class DownloadAnchorTest18        : ServerTestBase<ToggleExecutionModeServerFixture<Program>>19    {20        public DownloadAnchorTest(21            ToggleExecutionModeServerFixture<Program> serverFixture,22            ITestOutputHelper output)23            : base(serverFixture, output)24        {            25        }26        protected override Type TestComponent { get; } = typeof(TestRouter);27        [QuarantinedTest("New experimental test that need bake time.")]28        [ConditionalTheory]29        [InlineData(BrowserKind.Chromium)]30        [InlineData(BrowserKind.Firefox)]31        // NOTE: BrowserKind argument must be first32        public async Task DownloadFileFromAnchor(BrowserKind browserKind)33        {34            if (ShouldSkip(browserKind)) 35            {36                return;37            }38            // Arrange39            var initialUrl = TestPage.Url;40            var downloadTask = TestPage.WaitForEventAsync(PageEvent.Download);41            // Act42            await Task.WhenAll(43                downloadTask,44                TestPage.ClickAsync("a[download]"));45            // Assert URL should still be same as before click46            Assert.Equal(initialUrl, TestPage.Url);47            // Assert that the resource was downloaded            48            var download = downloadTask.Result.Download;49            Assert.Equal($"{_serverFixture.RootUri}subdir/images/blazor_logo_1000x.png", download.Url);50            Assert.Equal("blazor_logo_1000x.png", download.SuggestedFilename);51        }52    }53}

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            await using var playwright = await Playwright.CreateAsync();9            var browser = await playwright.Chromium.LaunchAsync();10            var context = await browser.NewContextAsync();11            var page = await context.NewPageAsync();12            var download = await page.RunAndWaitForDownloadAsync(async () =>13            {14                await page.ClickAsync("text=Download");15            });16            Console.WriteLine(download.SuggestedFilename);17            await browser.CloseAsync();18        }19    }20}21using Microsoft.Playwright;22using System;23using System.Threading.Tasks;24{25    {26        static async Task Main(string[] args)27        {28            await using var playwright = await Playwright.CreateAsync();29            var browser = await playwright.Chromium.LaunchAsync();30            var context = await browser.NewContextAsync();31            var page = await context.NewPageAsync();32            var download = await page.RunAndWaitForDownloadAsync(async () =>33            {34                await page.ClickAsync("text=Download");35            });36            Console.WriteLine(download.SuggestedFilename);37            await browser.CloseAsync();38        }39    }40}41using Microsoft.Playwright;42using NUnit.Framework;43using System;44using System.Threading.Tasks;45{46    {47        private IPlaywright playwright;48        private IBrowser browser;49        private IBrowserContext context;50        private IPage page;51        public async Task OneTimeSetUp()52        {53            playwright = await Playwright.CreateAsync();54        }55        public async Task OneTimeTearDown()56        {57            await playwright?.DisposeAsync();58        }59        public async Task SetUp()60        {61            browser = await playwright.Chromium.LaunchAsync();62            context = await browser.NewContextAsync();63            page = await context.NewPageAsync();64        }65        public async Task TearDown()66        {

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            await using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync();10            var page = await browser.NewPageAsync();11            var downloadTask = page.WaitForEventAsync(PageEvent.Download);12            await page.ClickAsync("text=English");13            var download = await downloadTask;14            await download.PathAsync();15        }16    }17}18await page.ClickAsync("text=English");19await page.SetDefaultDownloadPathAsync(@"C:\Users\user\Downloads");20await page.ClickAsync("text=English");21await page.ClickAsync("text=हिन्दी");22await page.ClickAsync("text=தமிழ்");23await page.ClickAsync("text=తెలుగు");24await page.ClickAsync("text=मराठी");25await page.ClickAsync("text=বাংলা");26await page.ClickAsync("text=ગુજરાતી");27await page.ClickAsync("text=ಕನ್ನಡ");28await page.ClickAsync("text=മലയാളം");29await page.ClickAsync("text=ਪੰਜਾਬੀ");30await page.ClickAsync("text=اردو");31await page.ClickAsync("text=فارسی");32await page.ClickAsync("text=پ

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {

1using Microsoft.Playwright;2using System;3using System.IO;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            var downloadPath = @"C:\Users\username\Downloads\";10            var fileName = "dummy.pdf";11            var downloadFile = downloadPath + fileName;12            var download = new Download();13            await download.DownloadFile(url, downloadFile);14        }15    }16}17using Microsoft.Playwright;18using System;19using System.IO;20using System.Threading.Tasks;21{22    {23        public async Task DownloadFile(string url, string downloadFile)24        {25            await using var playwright = await Playwright.CreateAsync();26            await using var browser = await playwright.Chromium.LaunchAsync();27            var context = await browser.NewContextAsync();28            var page = await context.NewPageAsync();29            await page.GotoAsync(url);30            await page.WaitForLoadStateAsync(LoadState.NetworkIdle);31            await page.ClickAsync("a");32            await page.WaitForLoadStateAsync(LoadState.NetworkIdle);33            await page.WaitForTimeoutAsync(5000);34            await page.CloseAsync();35        }36    }37}

1var playwright = await Microsoft.Playwright.Core.Playwright.CreateAsync();2var browser = await playwright.Chromium.LaunchAsync();3var page = await browser.NewPageAsync();4await page.ClickAsync("text=Download");5await page.WaitForDownloadAsync();6var downloads = await page.GetDownloadsAsync();7var download = downloads[0];8await download.SaveAsAsync(@"C:\Users\user\Desktop\2.pdf");9await page.CloseAsync();10await browser.CloseAsync();11await playwright.StopAsync();12WebClient webClient = new WebClient();13HttpClient httpClient = new HttpClient();14httpClient.DefaultRequestHeaders.Add("User-Agent", "C# console program");15response.EnsureSuccessStatusCode();16var file = await response.Content.ReadAsByteArrayAsync();17await File.WriteAllBytesAsync(@"C:\Users\user\Desktop\3.pdf", file);18request.Method = "GET";19request.UserAgent = "C# console program";20using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())21{22    response.EnsureSuccessStatusCode();23    using (Stream stream = response.GetResponseStream())24    {25        using (FileStream fileStream = new FileStream(@"C

1using System;2using System.IO;3using System.Threading.Tasks;4using Microsoft.Playwright;5{6    {7        static async Task Main(string[] args)8        {9            var playwright = await Playwright.CreateAsync();10            var browser = await playwright.Chromium.LaunchAsync();11            var context = await browser.NewContextAsync();12            var page = await context.NewPageAsync();13            await page.ClickAsync("text=Images");14            await page.ClickAsync("#islrg > div.islrc > div:nth-child(2) > a.wXeWr.islib.nfEiy.mM5pbd > div.bRMDJf.islir > img");15            await page.ClickAsync("#Sva75c > div > div > div.pxAole > div.tvh9oe.BIB1wf > c-wiz > div > div > div.OUZ5W > div > div > div.irc_mi > a > img");16            await page.ClickAsync("text=Download");17            var download = await page.WaitForDownloadAsync();18            await download.SaveAsAsync(@"C:\Users\jayap\Downloads\img.jpg");19            await browser.CloseAsync();20        }21    }22}23using System;24using System.IO;25using System.Threading.Tasks;26using Microsoft.Playwright;27{28    {29        static async Task Main(string[] args)30        {31            var playwright = await Playwright.CreateAsync();32            var browser = await playwright.Chromium.LaunchAsync();33            var context = await browser.NewContextAsync();34            var page = await context.NewPageAsync();