![]() ![]() On line 19, I create a Map with the required keys for this command. ![]() However, to streamline this a bit by only passing the required parameters, I’m going to use the raw executeCdpCommand() instead as shown in the code below. For any of the 8 optional arguments that we don’t need to send, we can pass Optional.empty(). In our Selenium tests, we could use the DevTools::send() method using the built-in setDeviceMetricsOverride() command, however, this Selenium API accepts 12 arguments – the 4 that are required as well as 8 optional ones. These four keys are mandatory for this scenario, but there are several optional ones as well. The CDP command to modify the device’s metrics is tDeviceMetricsOverride, and this command requires input of width, height, mobile, and deviceScaleFactor. How can we use Selenium’s new CDP functionality to accomplish this? Most of the applications we build today are responsive to cater to the needs of the end users coming from a variety of platforms, devices like phones, tablets, wearable devices, desktops and orientations.Īs testers, we might want to place our application in various dimensions to trigger the responsiveness of the application. Let’s explore how we can utilize these new Selenium 4 APIs to solve various use cases. The Chromium-based drivers such as ChromeDriver and EdgeDriver now inherit from ChromiumDriver, so you also have access to the Selenium CDP APIs from these drivers as well. The executeCdpCommand() can be used if there isn’t a Selenium wrapper API for the CDP command, or if you’d like to make the call in a different way than the Selenium APIs provide. ![]() It does not use the wrapper APIs but instead allows you to directly pass in a Chrome DevTools command and the parameters for that command. The executeCdpCommand() method also allows you to execute CDP methods but in a more raw sense. These commands are wrapper methods that make it cleaner and easier to invoke CDP functions. The getDevTools() method returns the new DevTools object which allows you to send() the built-in Selenium commands for CDP. Selenium 4 introduces the new ChromiumDriver class, which includes two methods to access Chrome DevTools: getDevTools() and executeCdpCommand(). Change the device mode and exercise the responsiveness of the application.Mock geolocations for location-aware testing, localization, and internationalization.Capture and monitor the network traffic and performance.Selenium 4 has added native support for Chrome DevTools APIs. Check and monitor the site’s performance.With Chrome DevTools, developers have deeper access to the website and are able to: These commands are wrapper methods that make it cleaner and easier to invoke CDP functions.” Shama ugaleīut first, what is Chrome DevTools? Introduction to Chrome DevToolsĬhrome DevTools is a set of tools built directly into Chromium-based browsers like Chrome, Opera, and Microsoft Edge to help developers debug and investigate websites. “The getDevTools() method returns the new DevTools object which allows you to send() the built-in Selenium commands for CDP. I’ll share some of the capabilities of the Selenium 4 CDP APIs as well as practical use cases that can take our tests to the next level! In this post, we will discuss one of the most anticipated features of Selenium 4 which is the new APIs for CDP (Chrome DevTools Protocol)! This addition to the framework provides a much greater control over the browser used for testing. In the previous post of the Selenium 4 blog series, we discussed some of the new features in Selenium 4. SDKs & Integrations Integrate with all your favorite frameworks and platforms.Ultrafast Grid Functional and visual testing run on our Ultrafast Grid.Execution Cloud Self-healing test infrastructure in the cloud.Eyes Functional and visual testing based on Visual AI.Preflight No-code test creation, execution, and maintenance.The Ultrafast Test Cloud Modern cross browser testing platform powered by Visual AI. ![]()
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