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Agile Testing Best Practices
The document outlines best practices for agile testing, emphasizing the importance of automated tests in achieving quality software and addressing common obstacles. Key principles include automation, speed, clear results, and timely test-driven development, while challenges such as evolving requirements and test code management are discussed. Additional resources and contact information for the presenter, Stephen Ritchie, are provided.
Agile Testing Best Practices
- 1. Agile Testing BestPractices Stephen Ritchie DCAST March Meeting 19-Mar-2013
- 2. Agenda 1 Motivation 2 Principles 3 Obstacles Excella Consulting -2-
- 3. Motivation Why Test Software? Excella Consulting
- 5. Chrysler New Yorker Excella Consulting
- 6. Motivation Why Write Automated Tests? Excella Consulting
- 7. Achieve Desired Results • Software costs too much • Users demand quality • Testing takes too long • New features take too long Excella Consulting
- 8. Microscope: Visibility andInsight Excella Consulting
- 9. Smoke Detector: ProblemDetection Excella Consulting
- 10. Weather Satellite: AdvancedWarning Excella Consulting
- 11. Automated Tests Make Sure Software Works As Intended
- 12. Agenda 1 Motivation 2 Principles 3 Obstacles Excella Consulting - 12 -
- 13. Agile Test Pyramid:Vision Testers Automated Engineers Google “Agile Test Pyramid” http://bit.ly/10Qubsy Excella Consulting
- 14. Agile Test Pyramid:Reality Ice-Cream Cone Anti-Pattern http://bit.ly/10QpUFG Excella Consulting
- 15. Agile Test Quadrants Excella Consulting
- 16. Principles 1. Unit Test Developer Tests “Intention Checking” Excella Consulting
- 17. Principles 2. Automate • Always running • Can't be bargained with • Can't be reasoned with • Tests don't feel pity or remorse or fear • Absolutely will not stop, ever, until you deliver a quality software product. Excella Consulting
- 18. Principles 2. Automate • CI Server • Per Commit • Overnight Functional • Smoke Testing • Stability Testing • Performance/Load • Automate Deployments • Project “Dashboard” Excella Consulting
- 19. Principles 3. Zero Configuration* I can run your tests, You can run mine. * One-time configuration is okay Excella Consulting
- 20. Principles 4. Fast All tests run time efficiently Excella Consulting
- 21. Principles 5. Clear Results Pass/Fail Focused Test Isolates Issue Excella Consulting
- 22. Principles 6. Easy to Maintain Conventional Brief Excella Consulting
- 23. Principles 7. Timely Test-Driven Development (TDD) Test As-It’s-Built Test As-It’s-Fixed Excella Consulting
- 24. Agenda 1 Motivation 2 Principles 3 Obstacles Excella Consulting - 24 -
- 25. Requirements, Requirements, Requirements Obstacle 1 •Too Abstract •Changing •Over Specification Excella Consulting
- 27. Specification by Example Examples& Feature Files Excella Consulting
- 28. One Primary AssertTo Rule Them All One Primary Assert Excella Consulting
- 29. Time Crunch Obstacle 2 Time Crunch Excella Consulting
- 30. Four Ways toFake Time Fake Time • Virtual Machine • Isolate The System • Inspect The Clock • Dummy IClock Excella Consulting
- 31. Dummy Real System Clock Clock IClock Interface System Under Test
- 32. Database Killed TheIntegration Test Obstacle 3 Database Integration Excella Consulting
- 33. Fixture Setup andData Arrangement Excella Consulting
- 34. Fixture Setup andData Arrangement • Schema Migration – RoundhousE – Flyway Db – Liquibase • Data Arrangement – DbUnit & NDbUnit Excella Consulting
- 35. Now We HaveToo Much Test Code Obstacle 4 Explosion of Test Code Excella Consulting
- 36. Monitor Test CodeGrowth Rate Control Growth • Monitor The Ratio • Data-Drive Tests • Boundary Analysis Excella Consulting
- 38. Bad Coupling Obstacle 5 Unhelpful Reuse Unhelpful Repetition Unhelpful Coupling Excella Consulting
- 39. In Test Code,Do Repeat Yourself ... Do Repeat Yourself Test Code Is Different • Avoid Inheritance Reuse • Use “Context” Helpers • Repetition Is Better Than Coupling Excella Consulting
- 41. Agenda 1 Motivation 2 Principles 3 Obstacles Excella Consulting - 41 -
- 42. Of Course It’sSafe … After You Excella Consulting
- 43. Shameless Self PromotionTime! • “Best Practices” Initiative • Tips and Tricks • Generate Ideas • Quantifying Value • Biases & Aversions • Tools & Technologies • Avoid Making the Same Mistake Once. Excella Consulting
- 44. Code and Slides •Code: https://github.com/ruthlesshelp • Slides: http://www.slideshare.net/ruthlesshelp Excella Consulting
- 45. Contact Me • Email: stephen.ritchie@excella.com • Twitter: @ruthlesshelp • Blog: http://ruthlesslyhelpful.net • LinkedIn: http://www.linkedin.com/in/sritchie Excella Consulting