This Ruby script generates uploader test files in increments of 10Mb, within a given range. To set your values, open up the create_files.rb file and change the min_size, and max_size variables. Save and close the file. To run the script, just run the following command in your command line utility:
ruby create_files.rb
This script is created by Missional Digerati and is under the GNU General Public License v3.