2022 API World - Testing Pyramid for Event-Driven Systems

Transcript

1. Testing Pyramid for Event-Driven Systems Dan Siwiec
2. Hi. I’m a software architect with 15 years of experience across multiple domains - health care, telco, travel, banking, retail, recently in love with Kotlin. 🌍 https://danoncoding.com 󰞵 https://github.com/danielsiwiec ✉ me@dansiwiec.com
3. What is a TESTING PYRAMID?
4. Testing Pyramid Demystified End to End Service Unit
5. Testing Pyramid Demystified End to End Service Unit In-memory tests, exercising the smallest, testable part of the application. Often a method or a class.
6. Testing Pyramid Demystified End to End Unit Service In-memory tests, exercising one component at a time, treating it as a black box. Also called service tests.
7. Testing Pyramid Demystified End to End Service Unit Browser tests or cross-service tests on a deployed environment exercising a complete flow
8. Testing Pyramid Demystified End to End Service Unit Exploratory, ad-hoc testing or investigation. Focus on learning, rather than validation. Manual
9. Testing Pyramid Demystified End to End Manual Service Unit
10. Use Case: ORDER PROCESSING
11. Happy Order Flow 1. User submits order 2. Is there inventory? 3. Process payment 4. Send shipment On each step send customer a notification
12. Point-to-point system
13. Event-Driven System
14. Test Pyramid APPLIED
15. Unit Testing End to End Service Unit
16. Payment Service
17. Unit Testing
18. Unit Testing
25. Service Testing End to End Unit Service
26. Service Testing
27. Service Testing
40. End-to-End Testing End to End Service Unit
41. System Under Test: End-to-End Testing
45. Bonus: Performance Tests
49. Event-Driven System
50. Event-Driven System
54. Final Considerations
55. Pyramid Revisited Flakiness User Focus Time End to End Service Unit
56. Pyramid Revisited Flakiness User Focus Time End to End Service Unit
57. Pyramid Revisited Flakiness User Focus Time Resilience to Refactoring End to End Service Unit
58. Testing Diamond End to End Service Unit Flakiness User Focus Time Resilience to Refactoring
59. https:/ /github.com/danielsiwiec/event-driven-demo
60. Thank you. me@dansiwiec.com https:/ /danoncoding.com