What are some best practices and features in Playwright to improve its speed and performance?


Speeding Up Playwright Tests

Playwright supports parallel execution of tests. This means you can run multiple tests simultaneously. If you have many independent tests in a single file, consider running them in parallel. Here's how you can configure this:

test.describe.configure({ mode: 'parallel' })

You can also shard your test suite across multiple machines with Playwright. This distributes the workload and executes tests concurrently on different machines, reducing overall execution time. Here's how to shard your test suite:

npx playwright test --shard=1/3

Soft assertions are another way to improve speed. They allow your test to continue running even if an assertion fails, providing more comprehensive feedback.

Keep your Playwright dependency up to date to maximize speed and ensure compatibility with the latest browser versions. Update Playwright regularly using:

npm install -D @playwright/test@latest

Playwright offers various tools that contribute to faster development and debugging processes. The VS Code extension provides an enhanced developer experience for writing, running, and debugging tests. The trace viewer allows you to inspect DOM snapshots for each action during testing and view network requests.

By following these best practices, you can optimize the speed and performance of your Playwright tests. For more tips, check out Tips for Writing Efficient Playwright Test Scripts.


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Rayrun is a community for QA engineers. I am constantly looking for new ways to add value to people learning Playwright and other browser automation frameworks. If you have feedback, email luc@ray.run.