Jimmy is the creator and maintainer of the popular OSS libraries AutoMapper and MediatR, and the originator of Vertical Slice Architecture. Jimmy is an independent software consultant based in Austin, TX. Jimmy has received the "Microsoft Most Valuable Professional" (MVP) award every year since 2009.
English session - Intermediate
Unit tests meant mocking everything, until one refactor broke a slew of tests. Integration tests are a better safety net but harder to build. This session covers .NET integration testing tools, handling shared state with TestContainers, uncontrollable dependencies, and patterns for maintainable tests across web apps, APIs, and messaging endpoints.
English session - Intermediate
Books and workshops describe domain-driven design for greenfield code. But what about existing code? This session covers spotting code smells in anemic, procedural code, applying standard design patterns for complex behaviors and knowing when not to, and safely refactoring toward a more cohesive, domain-driven model.