You can watch the video here: https://skillsmatter.com/skillscasts/4632-keynote-4632
(note: you have to be logged in to see the video)
(note: you have to be logged in to see the video)
I was reading the Cucumber blog recently, and I stumbled across a page about how the "CukeUp" conference was coming to NYC. Well, don't get too excited because that post was actually two years old, and the conference already happened. However, there are some great videos of presentations that you can watch for free like this one by Cucumber creator Aslak Hellesoy titled, "BDD and DDD".
Key Takeaways
- "DDD is about focusing on the domain and let it affect the software very much." - Jimmy Nilson
This happens by having conversations. - Tho goal/output of BDD is a domain model, and the goal/output of BDD is examples.
- Concrete Examples help expose misunderstandings.
- Think of Gherkin as "english with some constraints".
- BDD is an evolution of TDD where the tests are sentences that are rooted in the domain and help us grow the ubiquitous language.
- In traditional TDD, it's hard to know where to start. BDD gives you a starting point (the conversation and Gherkin statements that result from it).
- Don't write Cucumber tests about UI interaction because then it loses the description of the domain.
- Regression tests are particularly important when the domain changes.
- DDD on testing- test context boundaries, layers, use CI.
- "The one where" to help get the right abstraction in your examples.
- You don't need to keep testing mundane things.
- Estimating Complexity and cynefin.
- Examples as not specifications, but as discovery.
- Try to think of additional outcomes that might happen (when trying to come up with Gherkin features / scenarios).
- Turn Unknown unkowns into known unknowns (and eventually knowns!).
- Examples illustrate user stories.
- Three levels of conversation:
- basic- having a conversation
- little more advanced- write down that conversation
- ultimate- create Gherkin scenarios tied to low level step definitions
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