...Sooner or later you need:
- a PDF of exactly 10 MB, to find out whether the upload limit is real
- the three files that sit either side of that limit, to catch off by one errors
-10,000 log files, to see what the nightly job does when the folder is big
- a ZIP that genuinely holds 200 documents, not a stub with the right extension
- a 4 GB file, without keeping a 4 GB file in your repository