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Table Of Contents
Hands-On Automated Testing with Playwright
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File uploads and downloads might seem simple at first glance, but in practice, they involve a surprising amount of nuance, especially when you need to test them reliably across different browsers, file types, and environments. With Playwright’s powerful APIs, such as setInputFiles(), and its built-in download handling, you can skip the OS-level dialogs, directly control the file life cycle, and validate every step from selection to cleanup.
We’ve covered how to upload single and multiple files, generate test files in memory, verify download integrity, handle failures gracefully, and keep our environment tidy. By automating these tasks, we not only speed up our testing process but also gain confidence that our application can handle real-world scenarios, whether it’s a user uploading a multi-page PDF, downloading a generated report, or accidentally selecting the wrong file.
Ultimately, robust file-handling tests are about more than just “...