Testing web applications is a critical component of software development, ensuring that applications function correctly across different browsers and platforms. Playwright, developed by Microsoft, is a powerful tool designed for reliable end-to-end testing of modern web applications.
Playwright supports multiple programming languages, including JavaScript, TypeScript, Python, Java, and C#. It provides a unified API that works seamlessly across different browsers, such as Chromium, Firefox, and WebKit. This flexibility allows developers to write tests in their preferred language and still achieve consistent results across various environments.
Getting Started with Playwright
To begin using Playwright, the first step is to integrate it with your development environment. The VSCode extension for Playwright simplifies the installation process. By installing the extension and running the 'Install Playwright' command in the command panel, you can easily set up your testing environment.
Once installed, you can select the browsers you want to test against. Playwright allows you to choose from Chromium, Firefox, and WebKit, or even select all three for comprehensive testing coverage. The setup process also includes integrating GitHub Actions for continuous integration, making it effortless to run tests on every push and pull request.
Executing Tests with Playwright
Running tests with Playwright is straightforward and efficient. Tests can be executed in parallel without any additional configuration, speeding up the testing process significantly. You have the flexibility to run all tests, a subset of tests, or individual tests, depending on your needs.
The integration with VSCode allows for a visual representation of test execution. You can see browser windows opening and running tests in real-time. This feature is particularly useful for debugging, as it provides immediate feedback on the test's progress and outcome.
Debugging and Error Handling
Playwright provides robust debugging features, making it easier to identify and resolve errors in your tests. If a test fails, you can use live debugging and detailed error messages within VSCode. By setting breakpoints, you can inspect the state of your application at any point during the test execution.
Locators are a key feature in Playwright, offering a way to find elements on the page with built-in auto-waiting and retry capabilities. This means you don't need to manually set timeouts, as Playwright handles it automatically, ensuring that your tests wait for elements to be ready before interacting with them.
Advanced Features: Codegen and Trace Viewer
Codegen is a standout feature in Playwright, allowing you to generate tests by recording your actions. It helps beginners ease into testing by providing a starting point for creating tests. While it's not perfect, it significantly reduces the time required to write initial test scripts.
The Trace Viewer is another powerful tool that records every action during a test. It provides a detailed timeline of events, allowing you to review and analyze each step. This feature is invaluable for debugging, as it lets you pinpoint where and why a test failed.
Running Tests on Continuous Integration
Integrating Playwright with CI/CD pipelines is seamless thanks to GitHub Actions. Once configured, your tests will automatically run on every commit, providing immediate feedback on the health of your application. This ensures that issues are caught early in the development process.
Playwright's reporting features allow you to generate detailed reports of test results. These reports can highlight failures and provide insights into browser-specific issues, helping teams address compatibility problems efficiently.
Choosing Playwright Over Other Tools
Playwright offers several advantages over other testing frameworks like Cypress. Its ability to handle chat applications, test across multiple domains, and interact with iframes sets it apart. Additionally, Playwright's parallel execution and cross-browser support make it an attractive option for comprehensive testing.
While Cypress remains a popular choice, Playwright's extensive features and flexibility make it a compelling alternative, particularly for complex testing scenarios.
Conclusion
Playwright is a versatile and robust tool for web application testing, offering features that cater to both beginners and experienced developers. Its seamless integration with development environments, coupled with advanced debugging and reporting capabilities, makes it an invaluable asset in any software development toolkit. By adopting Playwright, teams can enhance their testing processes, improve application quality, and deliver a seamless user experience across different browsers and platforms.
Testing is hard, testing takes time to learn and to write, and time is money. As developers we want to test. We know we should but we don't have time. So how can we get more developers to do testing? We can create better tools.
Let me introduce you to Playwright - Reliable end-to-end cross browser testing for modern web apps, by Microsoft and fully open source. Playwright's codegen generates tests for you in JavaScript, TypeScript, Dot Net, Java or Python. Now you really have no excuses. It's time to play your tests wright.
This talk has been presented at TestJS Summit 2022, check out the latest edition of this JavaScript Conference.
Playwright is a tool for reliable end-to-end testing of modern web applications that works across all browsers and platforms. It is suitable for developers and testers who want to automate testing in multiple programming languages such as C#, Java, Python, JavaScript, and TypeScript.
To install Playwright in VSCode, look for the 'Playwright Test for VSCode by Microsoft' extension. Use the command panel and write 'Install Playwright'. Follow the prompts to configure browsers and other settings.
Yes, during the installation of Playwright, you can select which browsers to test on, including Chromium, Firefox, and WebKit. You can choose one or all of them, and modify these selections later if needed.
Yes, Playwright supports testing in full isolation where tests run in separate browser contexts, ensuring they do not interfere with each other.
Playwright supports testing in multiple programming languages including C#, Java, Python, JavaScript, and TypeScript, making it a versatile choice for diverse development teams.
Playwright offers powerful tooling including Code Gen, which auto-generates tests from actions, and Trace viewer for detailed debugging. It also integrates with GitHub Actions for CI/CD pipelines and supports live debugging in VSCode.
Yes, Playwright can emulate mobile devices and test mobile-specific functionalities, allowing comprehensive testing across device types.
Locators in Playwright are methods used to find elements on the page with built-in auto-waiting and retry ability. They are strict by default and can be used with various selectors like getByText, getByRole, and more.
Playwright tests run in parallel by default, which speeds up execution. It also has built-in auto-wait features to manage dynamic content without manual timeouts.
Playwright allows you to view test executions and failures through the Trace viewer, which provides detailed snapshots and logs of the test. You can analyze actions, network requests, and other elements to debug issues.
Testing web applications with Playwright, a reliable end-to-end testing tool. Playwright offers fast execution, powerful tooling, and support for multiple languages. It provides precise selectors, web-first assertions, and code generation for easy testing. Playwright also offers features like live debugging, tracing, and running tests on CI. The future of Playwright aims to make testing easy and fun, with a focus on creating frustration-free web experiences.
Testing web applications with Playwright. Playwright testing is reliable end-to-end testing for modern web apps. It works on any browser and any platform. Tests run in full isolation, with fast execution and powerful tooling. You can run your tests in multiple languages, such as C#, Java, Python, JavaScript, or TypeScript. The VSCode extension for Playwright provides seamless integration and allows you to choose browsers, configure options, and use GitHub Actions for automated testing.
2. Running Tests and Live Debugging with Playwright
Once you've installed Playwright, you'll have access to the GitHub folder with actions, a test folder with example files, and the Playwright config. Running tests is easy with the VS Code extension, which provides live debugging and error messaging. By setting breakpoints, you can analyze and debug your tests to resolve any issues. Playwright also offers parallel test execution and the option to show or hide the browser window during testing.
3. Selectors and Locators in Playwright
Selectors in Playwright allow you to choose elements on a page with precision. Playwright provides built-in auto waiting and retry ability for locators, eliminating the need for timeouts. New APIs inspired by testing library, such as getByText, getByRole, and getByLabel, offer even more options. Playwright also offers a pick selector option in VS Code, making selector selection easier. By hovering over elements, you can obtain locators and quickly insert them into your code.
4. Selectors, Assertions, and Code Gen in Playwright
Playwright provides a variety of selectors for choosing elements on a page. Web-first assertions, such as to be checked, to be disabled, to be editable, and many more, ensure accurate testing. Code Gen is a helpful tool for generating tests by recording actions. It's a great way to start testing, especially for beginners. Using the VS Code extension or the terminal, you can easily record tests and generate code.
5. Testing Help Center and Live Chat
Continuing actions by clicking on logo and heading. Testing Help Center features, live chat, and iframe interaction. Chatting with Martial and ending the chat.
6. Testing with Playwright and Generating Code
Clicking around and finding bugs without writing code. Testing multiple domains and iframes. Playwright generates code for testing. No timeouts needed. Use web assertions and improve tests.
7. Using Code Gen and Analyzing Traces
When writing tests, using code gen can make it easier to get started. Show reports provide a comprehensive view of test results, including logs and traces. Traces record every action during a test, allowing for detailed analysis and troubleshooting. Traces can be run locally using the command npx playwright test --trace on.
8. Debugging Tests and Running on CI with Playwright
Now you can debug your tests with the Trace viewer, which provides a comprehensive view of test actions, including DOM snapshots, network requests, and source code. Additionally, you can run tests on CI using GitHub Actions and analyze the Playwright Report to debug and improve your tests. Playwright testing offers the VS Code extension and Code Gen for auto-generating tests.
9. Benefits of Playwright and Community Engagement
You can run tests in debug mode, with locators and frame locators for testing iframes. The Trace viewer provides a full trace of actions, and you can also take screenshots and videos. Auto-wait is built-in, eliminating the need for timeouts. Tests run in parallel across all browsers and devices, with interception of requests, following redirects, and cookie management. Playwright is used by everyone, is open source, and free. Connect with our ambassadors for amazing content and get involved in the Playwright community. Are you ready to join us in improving testing and having fun? Check out our documentation, Twitter, YouTube, and Slack channel.
QnA
Q&A and Advantages of Playwright
And if you want to reach out for anything, you can find me, Debs underscore Brian on Twitter. My website Debbie dot codes. I really look forward to seeing more of you in the playwright community. Thanks everyone, bye. Debbie's talk was power packed and informative. Playwright works with languages like C#, .NET, Python, TypeScript, JavaScript, and Java. You can use different languages for testing in the same project. Playwright offers flexibility in running tests within or outside your project. There's a question about the advantages of Playwright over Cypress.
Advantages and Future of Playwright
Advantages of Playwright over Cypress include testing chat applications, multiple domains, and iframes. The new API page.getByTestId allows custom attribute configuration. Getting started with Playwright is simple and can be done in three minutes using the provided guide and VS Code extension. The future of Playwright is to make testing easy and fun, creating a culture of testing for frustration-free web experiences.
Favorite Feature of Playwright
The future of Playwright is bright, with testing becoming common and easy. The Codegen feature is a favorite among users, as it automatically generates tests, saving time and effort. The Trace viewer is also appreciated for troubleshooting failed tests. With Codegen doing the heavy lifting, Debbie has more time for sports, spending around three hours and twenty minutes on physical activities.
Staying Motivated and Thank You
To stay motivated and energetic, put activities in your calendar. Debbie thanks the audience for the talk and sharing information about Playwright.
Cypress is a powerful tool for end-to-end testing and API testing. It provides instant feedback on test errors and allows tests to be run inside the browser. Cypress enables testing at both the application and network layers, making it easier to reach different edge cases. With features like AppActions and component testing, Cypress allows for comprehensive testing of individual components and the entire application. Join the workshops to learn more about full circle testing with Cypress.
Playwright is a reliable end-to-end testing tool for modern web apps that provides one API, full isolation, fast execution, and supports multiple languages. It offers features like auto-weighting, retrying assertions, seamless testing of iframes and shadow DOM, test isolation, parallelism, and scalability. Playwright provides tools like VS Code extension, UiMode, and Trace Viewer for writing, debugging, and running tests. Effective tests prioritize user-facing attributes, use playwright locators and assertions, and avoid testing third-party dependencies. Playwright simplifies testing by generating tests, providing code generation and UI mode, and allows for easy running and debugging of tests. It helps in fixing failed tests and analyzing DOM changes, fixing locator mismatches, and scaling tests. Playwright is open source, free, and continuously growing.
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Component testing is a gray area between integration and unit testing. The demo app focuses on the cart component and writing test cases for Playwright component test and VTest. The first cart test encounters a bug with the invisible method in View Test.
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Compared to unit testing, end-to-end testing aims to interact with your application just like a real user. And as we all know it can be pretty challenging. Especially when we talk about Mobile applications. Tests rely on many conditions and are considered to be slow and flaky. On the other hand - end-to-end tests can give the greatest confidence that your app is working. And if done right - can become an amazing tool for boosting developer velocity. Detox is a gray-box end-to-end testing framework for mobile apps. Developed by Wix to solve the problem of slowness and flakiness and used by React Native itself as its E2E testing tool. Join me on this workshop to learn how to make your mobile end-to-end tests with Detox rock. Prerequisites- iOS/Android: MacOS Catalina or newer- Android only: Linux- Install before the workshop
This workshop will teach you the basics of writing useful end-to-end tests using Cypress Test Runner. We will cover writing tests, covering every application feature, structuring tests, intercepting network requests, and setting up the backend data. Anyone who knows JavaScript programming language and has NPM installed would be able to follow along.
We're all taught to follow the Testing Pyramid but the reality is that we build out the Testing Christmas Tree. In this workshop, David will talk you through how to break down projects and put the tests where they need to be. By the end of the workshop you will be able to update your projects so that anyone and everyone can start contributing and truly living up to "Quality is everyone job". He will walk you through:- Component Testing- API Testing- Visual Regression Testing- A11Y testing He will also talk you through how to get these all setup in your CI/CD pipeline so that you can get shorter and faster feedback loops.
Live e2e test debugging for a distributed serverless application
WorkshopFree
2 authors
In this workshop, we will be building a testing environment for a pre-built application, then we will write and automate end-to-end tests for our serverless application. And in the final step, we will demonstrate how easy it is to understand the root cause of an erroneous test using distributed testing and how to debug it in our CI/CD pipeline with Thundra Foresight.
Table of contents: - How to set up and test your cloud infrastructure - How to write and automate end-to-end tests for your serverless workloads - How to debug, trace, and troubleshot test failures with Thundra Foresight in your CI/CD pipelines
In this workshop, I will show you how to quickly deploy and use browser automation infrastructure with Moon solution. We will start deploying everything on your workstation and will soon be able to run Selenium, Playwright and Puppeteer tests in parallel in the same cluster. Then I will demonstrate how to easily deliver the same experience for your team using a remote cluster in the cloud platform.
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