I think every programmer should get a chance to be on a testing project because it will make him or her a better programmer. On one project I supported the complete software development lifecycle process to develop a multi-tiered, Intranet-based, Product Data Management System from a software quality assurance perspective. The company is a global consumer products company, and they were creating a system to manage information about their products.
To do this the testing team, of which I was a part, analyzed business requirements and functional specifications, and designed test cases. Then we built test data and executed the test cases. For the most part, each of us would concentrate on a specific aspect of the system.
Since my time on this and other testing projects, I’ve found myself approaching development from the perspective as a tester, and it’s helped me be a better programmer. I wish the same for every programmer.