Debugging Tests in Playwright
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Debugging Tests in Playwright
Debugging is a crucial part of writing reliable test automation scripts. In Playwright, debugging is made easier with its powerful tools and features that help identify issues quickly and effectively.
One of the most effective ways to debug Playwright tests is by using the --debug or PWDEBUG=1 flag. This launches tests in an interactive mode, opening the browser with developer tools enabled and allowing you to step through the code. You can pause at breakpoints, inspect elements, and observe the test flow in real-time.
Playwright’s built-in debug() method can be inserted into your script to pause execution at a specific point. This is particularly useful when you want to inspect the state of the page or elements before continuing. During this pause, you can interact with the browser and manually inspect the DOM.
The slowMo option is another valuable tool. By slowing down test execution (e.g., slowMo: 1000), it becomes easier to visually follow what's happening in the browser and detect UI issues that might be missed at normal speed.
For script-level debugging, you can use console.log() or console.dir() to print variables, selectors, or any runtime values. Additionally, Playwright supports integration with IDE debuggers like Visual Studio Code, making it easier to set breakpoints and step through code.
Finally, capturing screenshots and videos using Playwright’s trace or screenshot features helps in analyzing test failures post-execution.
With these tools, Playwright offers a robust and developer-friendly debugging experience.
Read More
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