sub-second-acceptance-tests-seleniumconf-2018.pdf

Programmer flow is only possible when all the tests run in less than 10 seconds. Each test must run in less than a second.

Acceptance tests can run in milliseconds when you decouple your tests from the application as well as decoupling the layers of the application itself.

Transcript

2. Aslak Hellesøy
 aslak@cucumber.io
 Programmer since 1998 Open Source since 1999
 Agile since 2000
 BDD since 2003
 Created Cucumber in 2008 Cucumber Book in 2010 Co-founded Cucumber Ltd in 2013 Professional services (Training) Professional tooling (Cucumber Pro)
 Cucumber maintenance
3. the zone https://www.flickr.com/photos/w4nd3rl0st/12491208355
4. Immediate feedback
 Feeling that you have the potential to succeed
 Feeling so engrossed in the experience, that other needs become negligible
5. Intense concentration
 Merging of action and awareness
 Loss of reflective self- consciousness
 Sense of personal control or agency
 Distortion of temporal experience
 Autotelic experience
6. 3 time limits to keep in mind when optimising application performance
11. https://martinfowler.com/bliki/TestPyramid.html “Testing through the UI like this is slow, increasing build times” “Tests that run end-to- end through the UI are: - brittle
 - expensive to write - time consuming to run”
18. 10s
19. 1s
20. 100ms
21. 10ms
22. 1ms
23. 1ms 1ms
24. Integration confidence Functionality confidence Slow Fast Few Many 10s 1s 100ms 10ms 1ms 1ms
25. Scenario: Breaker joins Maker's 5 letter game Given Molly has started a game with the secret "steak" When Benny joins Molly's game Then Benny must guess a word with 5 letters
27. Domain-specific
 Commands Domain-specific
 Test Views Assertions
 on Test Views getGuessList() => [ { word: “steak”}, 
 { word: “stake”} ] guess({ word: “steak”})
29. https://github.com/subsecondtdd/codebreaker-js https://github.com/subsecondtdd/assembly-diagrams Nat Pryce CukeUp 2017: 
 https://www.youtube.com/watch?v=Fk4rCn4YLLU