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Shallow Depth of Tests Scallable BDD and TDD
- 1. Shallow Depth of Test Scalable TDD/BDD www.fabiopereira.me
- 2. TDD Call Centre • Slow • Brittle • Non-deterministic • Difficult to maintain • They do not scale
- 3. TDD Evolution ??????? TODAY No Tests
- 4. 29 year old man wants: - Car insurance - Travel insurance Quote Car $25 System Travel $15
- 5. 62 year old man wants: - Car insurance - Travel insurance Quote Car $25 System Travel (Too Old)
- 6. Can sell car insurance to people between 18 and 65. Can sell travel insurance to people between 18 and 60 Car Travel 17 L 18 J 17 L 18 J Quote 60 J 60 J 61 J 61 L System 65 J 66 L
- 8. JavaScript WebServer ReverseProxies Authentication JSON Services Controller Repository Domain Model
- 9. Error Handler Validations Pricer JSON Quote Mandatory Controller Validator Pricing Validator Price BusRule Domain Calculator Validator Model Cover1 Cover2 BR1 BR2 BRN … … Repository PRICING DATA
- 10. Error Handler Validations Pricer JSON Quote Mandatory Controller Validator Pricing Validator Price BusRule Domain Calculator Validator Model Cover1 Cover2 BR1 BR2 BRN … … Age Restriction Repository PRICING Rule DATA
- 11. Error Handler Validations Pricer JSON Quote Mandatory Controller Validator Pricing Validator Price BusRule Domain Calculator Validator Model Cover1 Cover2 BR1 BR2 BRN … … Repository PRICING DATA
- 15. Most so6ware organiza;ons today suffer from what I called the “Inverted Tes+ng Pyramid” (…) h#p://blogs.agilefaqs.com/
- 21. Error Handler Validations Pricer JSON Quote Mandatory Controller Validator Pricing Validator Price BusRule Domain Calculator Validator Model Cover1 Cover2 BR1 BR2 BRN … … Age Restriction Repository PRICING Rule DATA
- 22. Shallow Depth of Test
- 23. Shallow Depth of Test
- 24. MyTest Stimulate Operate Mock/Stub Simulate
- 25. Error Handler Validations Pricer JSON Quote Mandatory Controller Validator Pricing Validator Price BusRule Domain Calculator Validator Model Cover1 Cover2 BR1 BR2 BRN … … Repository PRICING DATA
- 28. BDD Business Devs Broker user Renewal Edit Risk UBD_CD Address TB_ADR Insurer en:ty
- 29. Given B When D Then D
- 30. BDD at the Unit Level
- 31. Use Builders and Fixtures h#p://en.wikipedia.org/wiki/Builder_pa#ern
- 32. BDD Concept Tools/ Current Practices
- 34. Simulate Http
- 35. Wiring
- 36. IN MEMORY DB (HSQL)
- 37. You can test Spring Config
- 38. High level and Test Journeys at the UI Level An authenticated insurance adviser should be able to sell insurance to a customer who fulfills all mandatory requirements Business rules should be applied to all customers who attempt to buy insurance Customers should be given the right insurance premium based on their insurance requirements
- 39. High level and Test Journeys at the UI Level An authenticated insurance adviser, should be able to sell insurance to a customer who fulfills all mandatory requirements Business rules should be applied to all customers who attempt to buy insurance Customers should be given the right insurance premium based on their insurance requirements
- 40. High level and Test Journeys at the UI Level An authenticated insurance adviser, should be able to sell insurance to a customer who fulfills all mandatory requirements Business rules should be applied to all customers who attempt to buy insurance Customers should be given the right insurance premium based on their insurance requirements
- 42. TTDD – Tautological TDD Tauto… WHAT?!
- 43. Tautology: from Greek: tauto: the same logos: word/idea Tautological: -‐ needless, redundant repe;;on of an idea -‐ repe;;on of same sense in different words; -‐ the phrase ”a beginner who has just started” is tautological
- 44. T A U T O L O G I C A L
- 46. TTDD – Mocks Setup Mocks Call a method/function Assert that mocks were called
- 49. (Mocks Setup)
- 50. Shallow DoT Let’s evolve… Test Pyramid Unit BDD UI Journeys Stop TTDD Slow, brittle, etc No Tests
- 52. Thanks References h#p://apcj.blogspot.com/2005_04_01_archive.html h#p://wa;rmelon.com h#p://jamescrisp.org h#p://clipboarded.blogspot.com h#p://anton.kovalyov.net/2011/02/20/why-‐i-‐forked-‐jslint-‐to-‐jshint/ h#p://en.wikipedia.org/wiki/Builder_pa#ern h#p://jawr.java.net/ h#p://pivotal.github.com/jasmine/ h#p://code.google.com/p/js-‐test-‐driver/ h#p://blogs.agilefaqs.com/ h#p://fabiopereira.me/blog/2012/03/18/introducing-‐depth-‐of-‐test-‐dot/ Images www.fabiopereira.me h#p://www.flickr.com/photos/nburrows h#p://www.luxury-‐insider.com/uploads/news/2010/06/korean-‐air-‐first-‐class-‐award-‐1.jpg h#p://one7.files.wordpress.com/2010/06/browsers.jpg h#p://www.luxury-‐insider.com/uploads/news/2010/06/korean-‐air-‐first-‐class-‐award-‐1.jpg h#p://www.digital-‐photography-‐student.com/wp-‐content/uploads/2009/01/DOF-‐Shallow-‐Deep.png h#p://www.flickr.com/photos/bullgod/2604300680/ h#p://www.whatsgo#ago.com/wp-‐content/uploads/2007/12/angry_phone2.jpg