![]() While they might fail for a good reason, like the website no longer loading, they might also fail for a bad reason, like the website provider changing the HTML structure your scripts navigate. When that happens, tests built with tools like Selenium WebDriver are likely going to fail. This is because, by definition, your website doesn’t control the content you load in an iframe.Ī website you load in an iframe can change out from underneath you with no warning. When you test iframe content, that’s very tricky. You also don’t want them to tell you when something insignificant changes. When you’re testing your website, you want your tests to tell you when something meaningful breaks. What Are the Pitfalls of Testing iframes? When you’ve finished testing the iframe’s contents, you can switch back out of the content by navigating back to the root of the webpage. ![]() So, what function does the iframe serve to your users? That’s what you should be testing within your functional tests. Your goal with functional testing is to ensure that the website functions as expected. What exactly you’ll test inside the iframe is up to you. Because Selenium WebDriver involves rendering the webpage just like it would render to the end-user, you will have the final contents of the site loaded in the iframe. You can script tests against the iframe’s contents just as if you were running them on your site. Once you’ve navigated into the iframe, Selenium WebDriver treats the iframe’s contents just like they were displayed in their own browser window. This way, if you modify the page and add another iframe element, your tests won’t break as soon as you modify the layout. When writing tests, it’s usually wiser and safer to search for elements by their ID. Selenium catalogs all elements on the screen, which means that you can search for iframes either by their HTML ID or by the numerical index by which they appear on the screen. You can also use the Selenium WebDriver to test iframe content. This includes examining the content of HTML elements, simulating user interactions like clicking or typing, and verifying that elements lay out on the page correctly. The WebDriver allows you to script interactions with a browser. The most common way to script tests on rendered browser content is the Selenium WebDriver. Start Testing Free Selenium WebDriver and SwitchTo You’ll be loading up the website on a real server, serving the real content, and then writing scripts to ensure what you see is what you expect.įast and flexible authoring of AI-powered end-to-end tests - built for scale. Functional testing is the part of the test plan where you determine if the entire application is working at the point where the end-user interacts with it.įor a website, this means testing the website as it appears in a real browser. ![]() Instead, we test iFrames during the period of testing known as functional testing. When unit testing, you want to test the smallest possible “unit” of code. Well-designed unit tests shouldn’t include dependencies on external resources. This is because unit tests are designed to test your code’s application logic. We talked earlier about unit tests: You’re not going to test iframe content during the unit testing phase. To test iframes, we first need to talk about when you can test iframe content. If you’re using iframes to display external content on your website, you need to ensure they’re working correctly. Iframe usage was much more popular before the explosion of JavaScript usage on the web, but it still maintains an important place in today’s web world. A typical example of using an iframe is to embed a Google Map of your business location within an About Us page on a business website. In short, using an iframe on your website means that you can take web content from a website that’s not part of your current domain. An iframe is another name for the HTML Inline Frame element. What Is an Iframe?īefore we dive into testing iframes, let’s first talk quickly about what iframes are. In this post, we’re going to break down the best ways to test iframes within your normal testing flow. For instance, if you need to test iframes, you might have a tough time knowing how to do that with your current tools. But testing some parts of a webpage can be trickier than testing others. You might already do this with a tool like Selenium. The ultimate testing plan requires that you test your entire website when integrated with a complete production system. You also need to make sure to test at higher levels of integration. While unit testing is a key part of any test plan, it’s not the last word on testing. It would be best if you made sure that the code you ship to your customers does what you expect-and doesn’t break when they need it most. Testing your web-based software is a critical part of any modern deployment strategy.
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