To meet the demands of the modern application development lifecycle, application testing techniques have incorporated several cutting-edge practices, especially automation testing. Test automation has become a golden practice for developing valuable, more practical applications.
The desire for quicker feedback, better code quality, greater testing efficiency, and enhanced team cooperation has been the main forces for the adoption of test automation. It is a crucial step in the application development process because it raises the overall quality of the application and helps to increase testing’s effectiveness.
Choosing the appropriate tool is one of the most important tasks in test automation. However, there is no all-inclusive option, the finest tool is the one that best meets the testing needs and objectives. The Playwright is one of the recently added frameworks for web application test automation. It’s common knowledge that this framework is among the top options for automation testing.
We will examine the top key features of Playwright for Java developers in this article, but first, we will talk about Playwright and identify its elements. For developers to fully utilize Playwright’s capabilities, we will also examine when and why one should use it as a test automation framework. Let’s begin by introducing the Playwright.
One of the most distinctive characteristics of this framework is that it uses a single API for automating test cases on modern web-based applications across several major browsers like Chromium, Firefox, and Safari and numerous platforms including Windows, Linux, Mac OS, Android, and iOS. The developers of Playwright do not have to worry about any support or stability issues because it is maintained by Microsoft.
Due to its simplicity and accessibility, Playwright has become very popular. In addition, Playwright has a fairly low learning curve when compared to competing frameworks. hence making it simple for new application developers and testers to become familiar with this tool.
Playwright strives to offer web application testing automation that is quick, reliable, and easy to use. It has many features that make a variety of activities possible.
The browser driver – It is necessary to launch the browser to do the tests. The browser driver manages the browser engine and carries out playwright API instructions.
The browser context- It is an instance of a browser with its cache, cookies, and other settings. In a single instance of the browser, the Playwright framework supports many browser contexts, and each browser context has a unique set of pages that may be used for various scenarios or test sets.
The page- It is a representation of a single web page with its own DOM tree, frame hierarchy, and other content within a browser context. The page will carry out each test-related step.
Here are a few situations when Playwright excels over competing testing automation tools.
- When testing for both mobile and web is required.
- When testing is required on many browsers, particularly WebKit.
- When the best test results are required.
- Whenever an execution trace needs to be captured.
- Testing scenarios that call for interaction with numerous tabs, windows, platforms, or origins
- When an application’s components need to load or wait.
- When it’s necessary to test an application that uses iframes.
- When the application (both the full page view and specific elements/components) is an ideal choice for visual regression testing.
Even though Playwright is new in the market, its contributors are quite active and often release new features. It contains several features that significantly enhance the ease of use and simplicity of this automated testing solution. The top 10 features, which every developer should be aware of, are listed below. Let’s look at them.
Running tests against various configuration files offers an extensive range of options for customizing the environment for almost every test. Playwright can be used by application developers in a variety of development and testing scenarios. By switching between various environments, this automation testing tool enables running tests in a new environment, guaranteeing that the tests are reliably run against the appropriate setup each time. For total test isolation, it produces a fresh instance of the browser with its environment, which includes cookies, cache, and storage.
With Playwright, managing environment-specific setups for different browsers, viewports, devices, URLs, and API endpoints is easy and simple. Testers may easily run tests across numerous environments and adjust them to different setups with just a few lines of code. Playwright enables users to simulate real-world scenarios in various settings, which aids in identifying potential problems and maintaining an effortless user experience.
Thus, Playwright’s good management of numerous environments enables testers to examine test failure and conduct parallel tests, reducing time and testing effort and allowing them to concentrate more on creating high-quality applications.
Cross-browser testing is crucial for expanding an organization’s user base and testing capabilities. This is because browser compatibility issues make it difficult to isolate any specific group of end users. Playwright offers support for multiple browsers. As a result, the developers can automate testing across a variety of browsers, including those in the Chromium family (Chrome, MS Edge), Mozilla Firefox, and WebKit (Apple Safari).
Using this functionality, the developer can locate and fix any browser-specific problems that might occur in the application and can guarantee that the apps will work consistently across all available browser options. This is a highly significant feature since it enables application developers to guarantee that their app performs consistently across a range of browsers and offers users smooth application interactions regardless of the browser they are using.
Playwright helps developers create applications more quickly because they don’t have to spend too much time creating test cases for all the current major web browsers.
The playwright thoroughly examines each element to make sure that the proceeding actions are as expected. Playwright has an option called “auto-wait” that enables the test to delay the specified action until all required elements are visible or interactive. This is accomplished without introducing more explicit waits into the code.
It frequently occurs during test automation that an element that has to be used is not yet accessible or interactive. The playwright addresses false-negative findings by waiting off until elements are added to the DOM structure, made visible, and used. This method ensures that actions are carried out at the appropriate time, leading to more precise and reliable tests.
Proper error handling ensures that the tests must be able to smoothly recover from errors to continue running. When running tests, Playwright has strong error-handling features to deal with unexpected situations. It successfully handles failures and exceptions that arise during web page interactions and browser automation activities because of its try-catch blocks and other tried-and-true error-handling techniques.
Debugging Playwright tests is made easier by the graphical user interface (GUI) tool known as the Playwright Inspector. It enables live locator editing, locator selection, breakpoint setting, smooth code navigation, variable inspection, effective obstacle troubleshooting, and log viewing.
Additionally, using its “page. pause ()” method facilitates efficient test case debugging. By using this method, the debugging process is streamlined because there is no longer a need to manually move through each test step to get to the appropriate debugging point. Playwright’s debugging tools make it easier to quickly find and fix issues as they arise during test and development.
Playwright allows developers to quickly create extensive reports that provide in-depth analysis of test scenarios. They can see all relevant logs and screenshots as well as their pass or fail status in detail. This gives them the ability to quickly detect problems, monitor development, and effectively convey findings to all stakeholders.
For testing network requests and performance, Playwright provides a strong network interception API functionality. As a result, developers can modify or block network requests made by a web page. This can be helpful for testing purposes such as imitating slow network conditions, simulating server replies, or testing the behavior of the web application under various network settings to find areas that need improvement.
Using these two tools, users may visualize and evaluate their step-by-step Playwright test run activity. The trace viewer emphasizes the specific problems with each test run’s action, such as network requests, a flow of events, page interactions, and other necessary information. It also aids in locating performance problems or bottlenecks. On the other side, the inspector lets users view and change the page’s state to interact with elements and troubleshoot tests.
Playwright is one of the well-liked alternatives that aid application developers in improving the efficiency and reliability of the web interface automation testing method. The playwright makes use of the DevTools protocol and a browser’s native automation features to provide reliable and stable automated tests that offer more in-depth analysis of the browser and more accurate user scenarios.
This practice aids developers in strengthening the reliability of test findings and reducing the uncertainty of test scenarios. When developers are working on complex applications that require the verification of thousands of different components, it is a crucial feature.
Through Browser Context, Playwright facilitates running numerous tests concurrently across various browsers. When numerous web pages need to be evaluated at once, this speeds up testing and helps testers save significant time and energy. Playwright’s parallel testing features let developers easily perform cross-browser tests and guarantee thorough test coverage.
The developers can run all of the Playwright tests using a variety of platforms and tools. However, the developers need constant access to real devices to increase the effectiveness of the test cases. However, setting up and maintaining a physical device infrastructure that includes older and newer versions of devices is a very costly and time-consuming process that demands a lot of work.
App developers might choose cloud-based platforms to avoid this. Through the use of these platforms, developers may initiate and execute all automated test cases on real devices through the cloud from any location in the world.
LambdaTest is one such AI-powered test orchestration and execution platform that provides more than 3000 real devices, browsers, and operating system combinations online for instant, on-demand testing. In addition to Playwright testing, LambdaTest supports other well-known frameworks like Selenium, Cypress, and Cucumber. All of Playwright’s capabilities, including resiliency, auto-waiting, recording test traces, and others, are also supported by LambdaTest.
Another noteworthy feature of LambdaTest is cross-browser testing, which ensures the best end-user experience while ensuring the app’s stability regardless of the user’s change in operating system, device version, or any other browser aspects. Additionally, the execution of tests in parallel greatly increases test efficiency.
This cloud also offers integrations with well-known CI/CD tools like Jira, Jenkins, TeamCity, Travis CI, and others to guarantee the greatest level of test accuracy. Additionally, the built-in debugging tools give testers the ability to create an activity record and track all finished and continuing test cases to quickly find and fix errors.
In conclusion, Playwright is a well-known framework for test automation that supports quick, reliable, and effective automation across all current browsers. Its extensive feature set streamlines automation and increases testing effectiveness.