KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use ShouldEmulateDeviceWidth method of Microsoft.Playwright.Tests.BrowserContextViewportTests class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.BrowserContextViewportTests.ShouldEmulateDeviceWidth

BrowserContextViewportTests.cs

Source:BrowserContextViewportTests.cs

...38            await Page.SetViewportSizeAsync(123, 456);39            await TestUtils.VerifyViewportAsync(Page, 123, 456);40        }41        [PlaywrightTest("browsercontext-viewport.spec.ts", "should emulate device width")]42        public async Task ShouldEmulateDeviceWidth()43        {44            await TestUtils.VerifyViewportAsync(Page, 1280, 720);45            await Page.SetViewportSizeAsync(200, 200);46            Assert.AreEqual(200, await Page.EvaluateAsync<int>("window.innerWidth"));47            Assert.True(await Page.EvaluateAsync<bool?>("() => matchMedia('(min-device-width: 100px)').matches"));48            Assert.False(await Page.EvaluateAsync<bool?>("() => matchMedia('(min-device-width: 300px)').matches"));49            Assert.False(await Page.EvaluateAsync<bool?>("() => matchMedia('(max-device-width: 100px)').matches"));50            Assert.True(await Page.EvaluateAsync<bool?>("() => matchMedia('(max-device-width: 300px)').matches"));51            Assert.False(await Page.EvaluateAsync<bool?>("() => matchMedia('(device-width: 500px)').matches"));52            Assert.True(await Page.EvaluateAsync<bool?>("() => matchMedia('(device-width: 200px)').matches"));53            await Page.SetViewportSizeAsync(500, 500);54            Assert.True(await Page.EvaluateAsync<bool?>("() => matchMedia('(min-device-width: 400px)').matches"));55            Assert.False(await Page.EvaluateAsync<bool?>("() => matchMedia('(min-device-width: 600px)').matches"));56            Assert.False(await Page.EvaluateAsync<bool?>("() => matchMedia('(max-device-width: 400px)').matches"));...

ShouldEmulateDeviceWidth

Using AI Code Generation

1{2    {3        public BrowserContextViewportTests(ITestOutputHelper output) : base(output)4        {5        }6        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]7        public async Task ShouldEmulateDeviceWidth()8        {9            var context = await Browser.NewContextAsync(new BrowserContextOptions10            {11                Viewport = new ViewportSize { Width = 400, Height = 500 },12            });13            var page = await context.NewPageAsync();14            await page.GoToAsync(TestConstants.ServerUrl + "/mobile.html");15            Assert.Equal(400, await page.EvaluateAsync<int>("window.innerWidth"));16            Assert.Equal("foobar", await page.EvaluateAsync<string>("window.navigator.userAgent"));17            await context.CloseAsync();18        }19    }20}21{22    {23        public BrowserContextViewportTests(ITestOutputHelper output) : base(output)24        {25        }26        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]27        public async Task ShouldNotOverrideViewportSizeWhenIsNotSet()28        {29            var context = await Browser.NewContextAsync(new BrowserContextOptions30            {31            });32            var page = await context.NewPageAsync();33            await page.GoToAsync(TestConstants.ServerUrl + "/mobile.html");34            Assert.Equal(800, await page.EvaluateAsync<int>("window.innerWidth"));

ShouldEmulateDeviceWidth

Using AI Code Generation

1{2    using System;3    using System.Collections.Generic;4    using System.Text;5    using System.Threading.Tasks;6    using PlaywrightSharp;7    using Xunit;8    using Xunit.Abstractions;9    [Trait("Category", "firefox")]10    {11        internal BrowserContextViewportTests(ITestOutputHelper output) : base(output)12        {13        }14        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]15        public async Task ShouldEmulateDeviceWidth()16        {17            await using var context = await Browser.NewContextAsync(new BrowserContextOptions18            {19            });20            var page = await context.NewPageAsync();21            await page.GoToAsync(TestConstants.ServerUrl + "/mobile.html");22            Assert.Equal(TestConstants.IPhone.ViewPort.Width, await page.EvaluateAsync<int>("window.innerWidth"));23        }24    }25}26{27    using System;28    using System.Collections.Generic;29    using System.Text;30    using System.Threading.Tasks;31    using PlaywrightSharp;32    using Xunit;33    using Xunit.Abstractions;34    [Trait("Category", "firefox")]35    {36        internal BrowserContextViewportTests(ITestOutputHelper output) : base(output)37        {38        }39        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]40        public async Task ShouldSupportNullViewport()41        {42            await using var context = await Browser.NewContextAsync(new BrowserContextOptions

ShouldEmulateDeviceWidth

Using AI Code Generation

1using Microsoft.Playwright.Tests;2using NUnit.Framework;3using System.Threading.Tasks;4{5    [Parallelizable(ParallelScope.Self)]6    {7        [PlaywrightTest("browsercontext-viewport.spec.ts", "should emulate device width")]8        [Test, Timeout(TestConstants.DefaultTestTimeout)]9        public async Task ShouldEmulateDeviceWidth()10        {11            await Page.EmulateViewportAsync(320, 480);12            Assert.AreEqual(320, Page.ViewportSize.Width);13            Assert.AreEqual(480, Page.ViewportSize.Height);14            Assert.AreEqual(320, Page.MainFrame.ViewportSize.Width);15            Assert.AreEqual(480, Page.MainFrame.ViewportSize.Height);16        }17    }18}19{20    {21        public Page Page { get; set; }22        public override async Task InitializeAsync()23        {24            await base.InitializeAsync();25            Page = await Context.NewPageAsync();26        }27    }28}29{30    {31        public IBrowserContext Context { get; set; }32        public override async Task InitializeAsync()33        {34            await base.InitializeAsync();35            Context = await Browser.NewContextAsync();36        }37    }38}39{40    {41        public IBrowser Browser { get; set; }42        public override async Task InitializeAsync()43        {44            await base.InitializeAsync();45            Browser = await Playwright.LaunchAsync();46        }47    }48}49{50    {51        public IPlaywright Playwright { get; set; }52        public override async Task InitializeAsync()53        {54            await base.InitializeAsync();55            Playwright = await PlaywrightSharp.Playwright.CreateAsync();56        }57    }58}59{60    {61        public virtual Task InitializeAsync() => Task.CompletedTask;62    }63}64{65    {66        public override async Task InitializeAsync()67        {

ShouldEmulateDeviceWidth

Using AI Code Generation

1using Microsoft.Playwright.Tests;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7using Xunit;8using Xunit.Abstractions;9{10    {11        internal BrowserContextViewportTests(ITestOutputHelper output) : base(output)12        {13        }14        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]15        public async Task ShouldEmulateDeviceWidth()16        {17            await Page.GotoAsync(Server.EmptyPage);18            await Page.EmulateMediaAsync(MediaType.Screen);19            await Page.SetViewportSizeAsync(500, 500);20            Assert.Equal(500, await Page.EvaluateAsync<int>("window.innerWidth"));21            await Page.EmulateMediaAsync(MediaType.Print);22            Assert.Equal(800, await Page.EvaluateAsync<int>("window.innerWidth"));23        }24    }25}26 Assert.Equal() Failure27   at PlaywrightSharp.Tests.BrowserContextViewportTests.ShouldEmulateDeviceWidth() in /home/vsts/work/1/s/src/PlaywrightSharp.Tests/BrowserContextViewportTests.cs:line 28

ShouldEmulateDeviceWidth

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using NUnit.Framework;7using PlaywrightSharp.Tests.BaseTests;8using PlaywrightSharp.Tests.Helpers;9using PlaywrightSharp.Tests.Attributes;10using PlaywrightSharp.Tests.Attributes;11{12    [Parallelizable(ParallelScope.Self)]13    {14        [PlaywrightTest("browsercontext-viewport.spec.ts", "should emulate device width")]15        [Test, Timeout(TestConstants.DefaultTestTimeout)]16        public async Task ShouldEmulateDeviceWidth()17        {18            await Page.EmulateViewportAsync(320, 480);19            await Page.GotoAsync(Server.EmptyPage);20            Assert.AreEqual(320, await Page.EvaluateAsync<int>("window.innerWidth"));21            await Page.EmulateViewportAsync(null, 480);22            Assert.AreEqual(800, await Page.EvaluateAsync<int>("window.innerWidth"));23            await Page.EmulateViewportAsync(0, 0);24            Assert.AreEqual(800, await Page.EvaluateAsync<int>("window.innerWidth"));25        }26    }27}

ShouldEmulateDeviceWidth

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Microsoft.Playwright.Tests;7{8    {9        [PlaywrightTest("browsercontext-viewport.spec.ts", "should emulate device width")]10        [Test, Ignore("We don't need to test PlaywrightSharp internals")]11        public void ShouldEmulateDeviceWidth()12        {13        }14    }15}16using System;17using System.Collections.Generic;18using System.Linq;19using System.Text;20using System.Threading.Tasks;21using Microsoft.Playwright.Tests;22{23    {24        [PlaywrightTest("browsercontext-viewport.spec.ts", "should emulate device width")]25        [Test, Ignore("We don't need to test PlaywrightSharp internals")]26        public void ShouldEmulateDeviceWidth()27        {28        }29    }30}31using System;32using System.Collections.Generic;33using System.Linq;34using System.Text;35using System.Threading.Tasks;36using Microsoft.Playwright.Tests;37{38    {39        [PlaywrightTest("browsercontext-viewport.spec.ts", "should emulate device width")]40        [Test, Ignore("We don't need to test PlaywrightSharp internals")]41        public void ShouldEmulateDeviceWidth()42        {43        }44    }45}46using System;47using System.Collections.Generic;48using System.Linq;49using System.Text;50using System.Threading.Tasks;51using Microsoft.Playwright.Tests;52{53    {54        [PlaywrightTest("browsercontext-viewport.spec.ts", "should emulate device width")]55        [Test, Ignore("We don

ShouldEmulateDeviceWidth

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();10            var context = await browser.NewContextAsync(new Browser.NewContextOptions11            {12                {13                }14            });15            var page = await context.NewPageAsync();16            var result = await page.EvaluateAsync<bool>("() => window.innerWidth < 800");17            await page.CloseAsync();18            await context.CloseAsync();19            await browser.CloseAsync();20        }21    }22}23using System;24using System.Threading.Tasks;25using Microsoft.Playwright;26{27    {28        static async Task Main(string[] args)29        {30            using var playwright = await Playwright.CreateAsync();31            await using var browser = await playwright.Chromium.LaunchAsync();32            var context = await browser.NewContextAsync(new Browser.NewContextOptions33            {34                {35                }36            });37            var page = await context.NewPageAsync();38            var result = await page.EvaluateAsync<bool>("() => window.innerWidth < 800");39            await page.CloseAsync();40            await context.CloseAsync();41            await browser.CloseAsync();42        }43    }44}45using System;46using System.Threading.Tasks;47using Microsoft.Playwright;48{49    {50        static async Task Main(string[] args)51        {52            using var playwright = await Playwright.CreateAsync();

ShouldEmulateDeviceWidth

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Text;4using System.Threading.Tasks;5using Microsoft.Playwright.Core;6using Microsoft.Playwright.Transport;7using Microsoft.Playwright.Transport.Channels;8using Microsoft.Playwright.Transport.Protocol;9using Microsoft.Playwright.Transport.Protocol.Page;10using Newtonsoft.Json.Linq;11{12    {13        [Fact(Timeout = PlaywrightSharp.Playwright.DefaultTimeout)]14        public async Task ShouldEmulateDeviceWidth()15        {16            await Page.EmulateAsync(new EmulateOptions17            {18                {19                },20            });21            await Page.GoToAsync(TestConstants.ServerUrl + "/mobile.html");22            Assert.Equal(500, await Page.EvaluateAsync<int>("window.innerWidth"));23            Assert.Equal("foobar", await Page.EvaluateAsync<st

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.