Multiple test files
Back here http://msmvps.com/blogs/richardsiddaway/archive/2009/11/05/creating-temporary-files.aspx or http://richardsiddaway.spaces.live.com/blog/cns!43CFA46A74CF3E96!2595.entry I showed how to create temporary test files.
We can simply create multiple test files like this
1..10 | foreach {new-tempfile -path c:\test\test1 -size $(Get-Random -Maximum 1mb -Minimum 1kb)}
A one line PowerShell script that generates 10 files in the given folder with random names and sizes.