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How to use ShouldReturnNullForNonIframes method of Microsoft.Playwright.Tests.ElementHandleContentFrameTests class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Tests.ElementHandleContentFrameTests.ShouldReturnNullForNonIframes

ElementHandleContentFrameTests.cs

Source:ElementHandleContentFrameTests.cs

...56            var elementHandle = (IElementHandle)await frame.EvaluateHandleAsync("() => window.top.document.querySelector('#frame1')");57            Assert.AreEqual(frame, await elementHandle.ContentFrameAsync());58        }59        [PlaywrightTest("elementhandle-content-frame.spec.ts", "should return null for non-iframes")]60        public async Task ShouldReturnNullForNonIframes()61        {62            await Page.GotoAsync(Server.EmptyPage);63            await FrameUtils.AttachFrameAsync(Page, "frame1", Server.EmptyPage);64            var frame = Page.Frames.ElementAt(1);65            var elementHandle = (IElementHandle)await frame.EvaluateHandleAsync("() => document.body");66            Assert.Null(await elementHandle.ContentFrameAsync());67        }68        [PlaywrightTest("elementhandle-content-frame.spec.ts", "should return null for document.documentElement")]69        public async Task ShouldReturnNullForDocumentDocumentElement()70        {71            await Page.GotoAsync(Server.EmptyPage);72            await FrameUtils.AttachFrameAsync(Page, "frame1", Server.EmptyPage);73            var frame = Page.Frames.ElementAt(1);74            var elementHandle = (IElementHandle)await frame.EvaluateHandleAsync("() => document.documentElement");...

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.
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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.
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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.