S3 Mockup is an Amazon S3 emulator we develop for one of our projects. It can be easy embedded and used in your test framework or running as an independent service. Using this emulator you can easy setup development and QA environment.
Puffin allows you to test any web application or service. Once customized to your web application, you can use Puffin to unit test individual web pages, system test your entire web application, or load test your entire site.