This session dives deep into testing non-deterministic code and asynchronous processes. With growing adoption of microservices, multi-parallelism, and migration to the cloud; Testing of processes that involve multiple microservices and multiple asynchronous processes has never been more complex. Asynchronous bugs in software are often hard to reproduce because of this complexity and sometimes bugs may seem transient. This session is a deep dive into Coyote which is a tool to test concurrent and asynchronous code.