CHESS on Channel9

CHESS is a test tool for finding and reproducing Heisenbugs. Put simply, it takes the non out of non deterministic when testing concurrent code.

Toward the beginning there is quite a nice illustration of why you might not find Heisenbugs by stress testing. Further in there is a more detailed explanation of how CHESS works, and how the thread interleaving state space is reduced to a manageable level.

In this installment we see how to use the managed version of CHESS within a Visual Studio concurrency unit test.

Finally, here we get an overview of the tooling which helps visualise different thread interleavings.