1. How to test Reports in Impromptu on Production Server ? What are the Steps involved ?
2. How to Test Catalogs in Impromptu ? What are the Steps involved ?
Are you talking about testing the installation and configuration of the tools?
If so the documentation provides the steps and samples to do this.
If no then are you saying you already have an Impromptu production environment and want to test new or modified reports?
If yes then do this in a development and/or test environment first then migrate to production.