Add tests for pricing
Add test for if variable prices exist
Fix variable prices being saved incorrectly
Fix download files not saving correctly
Add test for second price option
Add test for lowest and highest price options
Add tests for price range and single price option mode
Add test for download type
Add tests for download earnings and sales
Add tests for increasing and decreasing purchase counts
Add tests for increase and decreasing earnings
Add test for download files
Add test for file download limit
Add test for download limit override
Add test to see if file is at download limit
Add tests for file download conditions
Add test for product notes