Testing PHP – Testing File Uploads

Uploading files is a key part of many web apps - from CVs to invoices to profile pictures. But how do you test it properly in Symfony?

In this video, I’ll walk you through how to test file uploads using Symfony’s `UploadedFile` class inside a real application test.

We’ll cover:

How to use fixture files for predictable, repeatable test data
Simulating file uploads with `UploadedFile` in test mode
Submitting a complete form with a file included
Asserting that a file was uploaded and stored correctly
Validating filenames, extensions, and upload behavior

By the end of this video, you’ll know how to write meaningful tests that verify file uploads work — not just for the happy path, but with confidence they’ll keep working in production.

Learn how to test PHP properly — with PHPUnit, Pest, Laravel and Symfony:
👉 https://www.garyclarke.tech/p/testing...