I see, you're correct it is pretty confusing as it stands. I think we should remove all references to fixtures from the "create a test" example. We should progressively build up knowledge, and don't really need YML based fixtures to get people started. Simple "write new DataObject" will do as well. The first paragraphs should focus on unit testing basics like naming a test method, writing assertions, etc. Fixtures can build on this knowledge later, but should have a concise code example that can stand on its own without relying on knowledge from previous docs. What do you think?