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

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

PageEmulateMediaTests.cs

Source:PageEmulateMediaTests.cs

...29{30    public class PageEmulateMediaTests : PageTestEx31    {32        [PlaywrightTest("page-emulate-media.spec.ts", "should emulate scheme work")]33        public async Task ShouldEmulateSchemeWork()34        {35            await Page.EmulateMediaAsync(new() { ColorScheme = ColorScheme.Light });36            Assert.True(await Page.EvaluateAsync<bool>("() => matchMedia('(prefers-color-scheme: light)').matches"));37            Assert.False(await Page.EvaluateAsync<bool>("() => matchMedia('(prefers-color-scheme: dark)').matches"));38            await Page.EmulateMediaAsync(new() { ColorScheme = ColorScheme.Dark });39            Assert.True(await Page.EvaluateAsync<bool>("() => matchMedia('(prefers-color-scheme: dark)').matches"));40            Assert.False(await Page.EvaluateAsync<bool>("() => matchMedia('(prefers-color-scheme: light)').matches"));41        }42        [PlaywrightTest("page-emulate-media.spec.ts", "should default to light")]43        public async Task ShouldDefaultToLight()44        {45            Assert.True(await Page.EvaluateAsync<bool>("() => matchMedia('(prefers-color-scheme: light)').matches"));46            Assert.False(await Page.EvaluateAsync<bool>("() => matchMedia('(prefers-color-scheme: dark)').matches"));47            await Page.EmulateMediaAsync(new() { ColorScheme = ColorScheme.Dark });...

ShouldEmulateSchemeWork

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Text;4using System.Threading.Tasks;5using Microsoft.Playwright;6using Xunit;7using Xunit.Abstractions;8{9    {10        public PageEmulateMediaTests(ITestOutputHelper output) : base(output)11        {12        }13        [PlaywrightTest("page-emulate-media.spec.ts", "should work")]14        [Fact(Timeout = TestConstants.DefaultTestTimeout)]15        public async Task ShouldWork()16        {17            await Page.EmulateMediaAsync();18            Assert.Null(await ShouldEmulateSchemeWorkAsync());19            await Page.EmulateMediaAsync(media: "screen");20            Assert.Null(await ShouldEmulateSchemeWorkAsync());21            await Page.EmulateMediaAsync(media: "print");22            Assert.Null(await ShouldEmulateSchemeWorkAsync());23        }24        [PlaywrightTest("page-emulate-media.spec.ts", "should work with colorScheme")]25        [Fact(Timeout = TestConstants.DefaultTestTimeout)]26        public async Task ShouldWorkWithColorScheme()27        {28            await Page.EmulateMediaAsync(colorScheme: ColorScheme.Light);29            Assert.Equal("light", await ShouldEmulateSchemeWorkAsync());30            await Page.EmulateMediaAsync(colorScheme: ColorScheme.Dark);31            Assert.Equal("dark", await ShouldEmulateSchemeWorkAsync());32        }33        [PlaywrightTest("page-emulate-media.spec.ts", "should throw for invalid color scheme")]34        [Fact(Timeout = TestConstants.DefaultTestTimeout)]35        public async Task ShouldThrowForInvalidColorScheme()36        {37            var exception = await Assert.ThrowsAsync<PlaywrightException>(() => Page.EmulateMediaAsync(colorScheme: ColorScheme.Light, media: "print"));38            Assert.Contains("Cannot combine 'colorScheme' with 'media'", exception.Message);39        }40        [PlaywrightTest("page-emulate-media.spec.ts", "should throw for invalid color scheme")]41        [Fact(Timeout = TestConstants.DefaultTestTimeout)]42        public async Task ShouldThrowForInvalidColorScheme2()43        {44            var exception = await Assert.ThrowsAsync<PlaywrightException>(() => Page.EmulateMediaAsync(colorScheme: ColorScheme.Light, prefersColorScheme: "dark"));45            Assert.Contains("Cannot combine 'colorScheme' with 'prefers-color-scheme'", exception.Message);46        }

ShouldEmulateSchemeWork

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            var media = "print";14            var result = await page.ShouldEmulateSchemeWorkAsync(media);15            Console.WriteLine(result);16        }17    }18}

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.
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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.
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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.