I think this is probably best to share in the Server Administration area of the forums. I am moving this thread to that area where other Server administrators might have a response to share their practices.
To test a large number of reports, I would use the tabcmd get or tabcmd export commands to create a png or pdf file for each of the dashboards.
You can create a batch file which polls through each of the views in question, and generates output.
Once completed, check the output for any issues (ie report hasnt been generated correctly)
Hope this helps