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File testing guides
Understand upload boundaries and file-format checks before testing your application. These guides explain what to measure and which fixture to use.
How to Test File Upload Limits: A Practical Guide
Testing an upload limit properly means three exact files, not one: at the limit, one byte over, and comfortably under — here's how and why.
EXE Test Files: PE Headers and Upload Rules
Check extension, MIME and upload rules with a PE-header fixture. Learn what its zero PE sections and legacy DOS stub mean, and when a working program is needed.
File Upload Limits: Check Your Platform and Account
Find the official limit for your account and upload method, choose MB or MiB correctly, and verify the accepted byte size with boundary tests.
How to Create a Test File of Any Size
Learn how to create exact-size test files for upload limits, API testing, email attachments, storage checks and QA workflows.