:) @romanandreg and I just implemented animated replay of event-sourced UI test fixtures http://rxtest.dentalle.com/#fixture:separate_post_metals::animate vs http://rxtest.dentalle.com/#fixture:separate_post_metals which just jumps to the end state and highlights the last change.
The fixtures here are defined as a sequence of domain events (AddCrown, ChangeParam, etc.) *not* as synthetic browser DOM UI events. The UI events are generated from them. Thus, our fixtures, tests, and animations are resilient to UI changes.
We’re already using this as an aid in client communication and acceptance reviews. It might also be used in training materials for our client’s customers.