How to use PageEmulateMediaAsync method of Microsoft.Playwright.Tests.PageEmulateMediaTests class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.PageEmulateMediaTests.PageEmulateMediaAsync

PageEmulateMediaAsync

Using AI Code Generation

1using Microsoft.Playwright;2using System.Threading.Tasks;3{4    {5        static async Task Main(string[] args)6        {7            using var playwright = await Playwright.CreateAsync();8            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions9            {10            });11            var context = await browser.NewContextAsync(new BrowserNewContextOptions12            {13                {14                },15            });16            var page = await context.NewPageAsync();17            await page.EmulateMediaAsync(new PageEmulateMediaOptions18            {19            });20        }21    }22}

PageEmulateMediaAsync

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Tests;3using System.Threading.Tasks;4using Xunit;5using Xunit.Abstractions;6{7    {8        public PageEmulateMediaTests(ITestOutputHelper output) : base(output)9        {10        }11        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]12        public async Task PageShouldWorkWhenEmulatingPrintMedia()13        {14            await Page.SetContentAsync(@"15                @media print {16                  body {17                    background: green;18                  }19                }20            ");21            await Page.EmulateMediaAsync(new PageEmulateMediaOptions22            {23            });24            Assert.Equal("rgb(0, 128, 0)", await Page.EvaluateAsync<string>("window.getComputedStyle(document.body).backgroundColor"));25        }26    }27}28{29    {30        internal PageEmulateMediaTests(ITestOutputHelper output) : base(output)31        {32        }33        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]34        public async Task PageShouldWorkWhenEmulatingPrintMedia()35        {36            await Page.SetContentAsync(@"37                @media print {38                  body {39                    background: green;40                  }41                }42            ");43            await Page.EmulateMediaAsync(new PageEmulateMediaOptions44            {45            });46            Assert.Equal("rgb(0, 128, 0)", await Page.EvaluateAsync<string>("window.getComputedStyle(document.body).backgroundColor"));47        }48    }49}

PageEmulateMediaAsync

Using AI Code Generation

1await Page.EmulateMediaAsync(Media.Print);2await Page.EmulateMediaAsync(Media.Screen);3await Page.EmulateMediaAsync(Media.Print);4await Page.EmulateMediaAsync(Media.Screen);5await Page.EmulateMediaAsync(Media.Screen);6await Page.EmulateMediaAsync(Media.Screen);7await Page.EmulateMediaAsync(Media.Screen);8await Page.EmulateMediaAsync(Media.Screen);9await Page.EmulateMediaAsync(Media.Screen);10await Page.EmulateMediaAsync(Media.Screen);11await Page.EmulateMediaAsync(Media.Screen);12await Page.EmulateMediaAsync(Media.Screen);13await Page.EmulateMediaAsync(Media.Screen);

PageEmulateMediaAsync

Using AI Code Generation

1using Microsoft.Playwright;2using Microsoft.Playwright.Tests;3using Microsoft.Playwright.Tests.Attributes;4using System.Threading.Tasks;5using Xunit;6using Xunit.Abstractions;7{8    [Trait("Category", "firefox")]9    {10        internal PageEmulateMediaTests(ITestOutputHelper output) : base(output)11        {12        }13        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]14        public async Task ShouldWork()15        {16            await Page.EmulateMediaAsync(MediaType.None);17            Assert.False(await Page.EvaluateAsync<bool>("matchMedia('screen').matches"));18            Assert.False(await Page.EvaluateAsync<bool>("matchMedia('print').matches"));19            await Page.EmulateMediaAsync(MediaType.Screen);20            Assert.True(await Page.EvaluateAsync<bool>("matchMedia('screen').matches"));21            Assert.False(await Page.EvaluateAsync<bool>("matchMedia('print').matches"));22            await Page.EmulateMediaAsync(MediaType.Print);23            Assert.False(await Page.EvaluateAsync<bool>("matchMedia('screen').matches"));24            Assert.True(await Page.EvaluateAsync<bool>("matchMedia('print').matches"));25        }26    }27}

PageEmulateMediaAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using System.Collections.Generic;4using System.Linq;5using Microsoft.Playwright.Tests;6using Microsoft.Playwright.Tests.Attributes;7using Microsoft.Playwright.Tests.Helpers;8using Microsoft.Playwright.Tests.BaseTests;9using Microsoft.Playwright.Transport.Channels;10using Microsoft.Playwright.Transport.Protocol;11using Microsoft.Playwright.Transport;12using Microsoft.Playwright;13{14    {15        [Fact(Timeout=PlaywrightSharp.Playwright.DefaultTimeout)]16        public async Task PageEmulateMediaAsync()17        {18            await Page.EmulateMediaAsync(MediaFeature.PrefersColorSchemeLight);19            await Page.GotoAsync(Server.Prefix + "/css-media.html");20            Assert.Equal("light", await Page.EvaluateAsync<string>("() => matchMedia('(prefers-color-scheme: light)').matches"));21            Assert.Equal("dark", await Page.EvaluateAsync<string>("() => matchMedia('(prefers-color-scheme: dark)').matches"));22            await Page.EmulateMediaAsync(MediaFeature.PrefersColorSchemeDark);23            Assert.Equal("dark", await Page.EvaluateAsync<string>("() => matchMedia('(prefers-color-scheme: light)').matches"));24            Assert.Equal("light", await Page.EvaluateAsync<string>("() => matchMedia('(prefers-color-scheme: dark)').matches"));25        }26    }27}28{29    {30        internal async Task EmulateMediaAsync(MediaFeature mediaFeature)31        {32            await Page.EvaluateAsync($"() => matchMedia('(prefers-color-scheme: {mediaFeature})').addEventListener('change', window.__onMediaChanged)");33            await Page.EvaluateAsync($"() => matchMedia('(prefers-color-scheme: {media

PageEmulateMediaAsync

Using AI Code Generation

1    var page = await context.NewPageAsync();2    await page.EmulateMediaAsync(media);3    await page.GoToAsync(TestConstants.ServerUrl + "/css-media.html");4    await page.EvalOnSelectorAsync("css=div", "div => div.className");5}6    var page = await context.NewPageAsync();7    await page.EmulateMediaAsync(media);8    await page.GoToAsync(TestConstants.ServerUrl + "/css-media.html");9    await page.EvalOnSelectorAsync("css=div", "div => div.className");10}11    var page = await context.NewPageAsync();12    await page.EmulateMediaAsync(media);13    await page.GoToAsync(TestConstants.ServerUrl + "/css-media.html");14    await page.EvalOnSelectorAsync("css=div", "div => div.className");15}16    var page = await context.NewPageAsync();17    await page.EmulateMediaAsync(media);18    await page.GoToAsync(TestConstants.ServerUrl + "/css-media.html");19    await page.EvalOnSelectorAsync("css=div", "div => div.className");20}

PageEmulateMediaAsync

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright;7using Microsoft.Playwright.Tests;8using NUnit.Framework;9using NUnit.Framework.Internal;10{11    [Parallelizable(ParallelScope.Self)]12    {13        [PlaywrightTest("page-emulate-media.spec.ts", "should work")]14        [Test, Timeout(TestConstants.DefaultTestTimeout)]15        public async Task ShouldWork()16        {17            await Page.EmulateMediaAsync(null);18            Assert.AreEqual("screen", await Page.EvaluateAsync<string>("window.matchMedia('screen').matches"));19            Assert.AreEqual("screen", await Page.EvaluateAsync<string>("window.matchMedia('print').matches"));20            await Page.EmulateMediaAsync("print");21            Assert.AreEqual("print", await Page.EvaluateAsync<string>("window.matchMedia('screen').matches"));22            Assert.AreEqual("print", await Page.EvaluateAsync<string>("window.matchMedia('print').matches"));23            await Page.EmulateMediaAsync(null);24            Assert.AreEqual("screen", await Page.EvaluateAsync<string>("window.matchMedia('screen').matches"));25            Assert.AreEqual("screen", await Page.EvaluateAsync<string>("window.matchMedia('print').matches"));26        }27        [PlaywrightTest("page-emulate-media.spec.ts", "should work with colorScheme")]28        [Test, Timeout(TestConstants.DefaultTestTimeout)]29        public async Task ShouldWorkWithColorScheme()30        {31            await Page.EmulateMediaAsync(null);32            Assert.AreEqual("light", await Page.EvaluateAsync<string>("window.matchMedia('(prefers-color-scheme: light)').matches"));33            Assert.AreEqual("dark", await Page.EvaluateAsync<string>("window.matchMedia('(prefers-color-scheme: dark)').matches"));34            await Page.EmulateMediaAsync(null, "dark");35            Assert.AreEqual("dark", await Page.EvaluateAsync<string>("window.matchMedia('(prefers-color-s

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