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Testing In Agile

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Ari Tanninen
Ari Tanninen

Slides for my presentation about testing in agile projects given December 1st 2009 at Agile Dinner in Helsinki, Finland.

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Testing in Agile Ari Tanninen Agile Dinner Helsinki December 1st 2009 Wednesday, December 2, 2009
Agenda Introductions Motivation Wednesday, December 2, 2009
Assumptions • Understanding of software development • Familiarity of agile • Basic testing know-how Wednesday, December 2, 2009
My Biases • Java developer • Object-orientation • Consulting Wednesday, December 2, 2009
Everything About Testing Wednesday, December 2, 2009
Functional testing... • Black box • White box • Grey box • Regression • Smoke • User Wednesday, December 2, 2009
Levels of testing... • Unit • Module • Component • Integration • System • System integration Wednesday, December 2, 2009
More testing! • Performance, scalability, stability, stress • Destructive • Usability • Security • Exploratory • Monkey Wednesday, December 2, 2009
Wednesday, December 2, 2009
Back to Basics Wednesday, December 2, 2009
Purposes of Testing • Product validation (the right product?) • Support development (built right?) • User / Technology • System / Code Wednesday, December 2, 2009
Wednesday, December 2, 2009 Source: Brian Marick, Mary Poppendieck, additions by me http://www.exampler.com/old-blog/2003/08/21/#agile-testing-project-1 http://stopandfix.blogspot.com/2009/04/all-about-testing.html
Agile Needs from Testing Wednesday, December 2, 2009
Waterfall Planning Analysis Design Coding Testing Deploying Done! Risk analysis Test planning Test case design Wednesday, December 2, 2009
Risk analysis Agile Test planning Risk analysis Test case design Test planning Test case design Planning Analysis Design Coding Testing Deploying Done! Planning Analysis Design Coding Testing Deploying Done! Planning Analysis Design Coding Testing Deploying Done! Planning Analysis Design Coding Testing Deploying Done! Risk analysis Test planning Test case design Definition of done: tested Wednesday, December 2, 2009
Potentially shippable functionality at the end of every iteration? Wednesday, December 2, 2009
Wednesday, December 2, 2009 Source: Brian Marick, Mary Poppendieck, additions by me http://www.exampler.com/old-blog/2003/08/21/#agile-testing-project-1 http://stopandfix.blogspot.com/2009/04/all-about-testing.html
The Problem Features to be tested 1 2 3 4 Iteration Wednesday, December 2, 2009
Test Automation Wednesday, December 2, 2009
Automated testing? Automated test case execution! Who designs and automates the test cases? Wednesday, December 2, 2009
Agile Development Up-front Design must design evolve impossible Iterative and Regression Test incremental Refactoring testing automation development Features Test-first added, Changing development changed, codebase removed Tests, too! Wednesday, December 2, 2009
The Key to Test Automation Testing tools? Software development http://stopandfix.blogspot.com/2009/03/key-to-test-automation.html Wednesday, December 2, 2009
Tests are software, too • Evolution • Architecture & design • Iterative & incremental development • Readability (➙DSL) Wednesday, December 2, 2009
Why test-first? • Efficient, least boring way to regression • Minimalism (“do only what is needed”) • “Done” • Design • Collaboration Wednesday, December 2, 2009
Unit Test Driven Development Acceptance Test Driven Development Wednesday, December 2, 2009
Challenges to Testing • Changing spec, code, and tests • “Potentially shippable” after every iteration • Usability & property testing • Tester’s role Wednesday, December 2, 2009
Tester’s Role Redefined • Acceptance tests, user view of system • Business value focus, PO liaison • Exploratory testing & the difficult stuff • Thinking, contributing team member • Learn programming, train developers Wednesday, December 2, 2009
Keys to Agile Testing • Developer testing • Evolving testing tools ➙ programming • Lazy & adaptive mindset • Collaboration Wednesday, December 2, 2009
Beer. Wednesday, December 2, 2009

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Testing In Agile

  • 1. Testing in Agile Ari Tanninen Agile Dinner Helsinki December 1st 2009 Wednesday, December 2, 2009
  • 2. Agenda Introductions Motivation Wednesday, December 2, 2009
  • 3. Assumptions • Understanding of software development • Familiarity of agile • Basic testing know-how Wednesday, December 2, 2009
  • 4. My Biases • Java developer • Object-orientation • Consulting Wednesday, December 2, 2009
  • 5. Everything About Testing Wednesday, December 2, 2009
  • 6. Functional testing... • Black box • White box • Grey box • Regression • Smoke • User Wednesday, December 2, 2009
  • 7. Levels of testing... • Unit • Module • Component • Integration • System • System integration Wednesday, December 2, 2009
  • 8. More testing! • Performance, scalability, stability, stress • Destructive • Usability • Security • Exploratory • Monkey Wednesday, December 2, 2009
  • 10. Back to Basics Wednesday, December 2, 2009
  • 11. Purposes of Testing • Product validation (the right product?) • Support development (built right?) • User / Technology • System / Code Wednesday, December 2, 2009
  • 12. Wednesday, December 2, 2009 Source: Brian Marick, Mary Poppendieck, additions by me http://www.exampler.com/old-blog/2003/08/21/#agile-testing-project-1 http://stopandfix.blogspot.com/2009/04/all-about-testing.html
  • 13. Agile Needs from Testing Wednesday, December 2, 2009
  • 14. Waterfall Planning Analysis Design Coding Testing Deploying Done! Risk analysis Test planning Test case design Wednesday, December 2, 2009
  • 15. Risk analysis Agile Test planning Risk analysis Test case design Test planning Test case design Planning Analysis Design Coding Testing Deploying Done! Planning Analysis Design Coding Testing Deploying Done! Planning Analysis Design Coding Testing Deploying Done! Planning Analysis Design Coding Testing Deploying Done! Risk analysis Test planning Test case design Definition of done: tested Wednesday, December 2, 2009
  • 16. Potentially shippable functionality at the end of every iteration? Wednesday, December 2, 2009
  • 17. Wednesday, December 2, 2009 Source: Brian Marick, Mary Poppendieck, additions by me http://www.exampler.com/old-blog/2003/08/21/#agile-testing-project-1 http://stopandfix.blogspot.com/2009/04/all-about-testing.html
  • 18. The Problem Features to be tested 1 2 3 4 Iteration Wednesday, December 2, 2009
  • 20. Automated testing? Automated test case execution! Who designs and automates the test cases? Wednesday, December 2, 2009
  • 21. Agile Development Up-front Design must design evolve impossible Iterative and Regression Test incremental Refactoring testing automation development Features Test-first added, Changing development changed, codebase removed Tests, too! Wednesday, December 2, 2009
  • 22. The Key to Test Automation Testing tools? Software development http://stopandfix.blogspot.com/2009/03/key-to-test-automation.html Wednesday, December 2, 2009
  • 23. Tests are software, too • Evolution • Architecture & design • Iterative & incremental development • Readability (➙DSL) Wednesday, December 2, 2009
  • 24. Why test-first? • Efficient, least boring way to regression • Minimalism (“do only what is needed”) • “Done” • Design • Collaboration Wednesday, December 2, 2009
  • 25. Unit Test Driven Development Acceptance Test Driven Development Wednesday, December 2, 2009
  • 26. Challenges to Testing • Changing spec, code, and tests • “Potentially shippable” after every iteration • Usability & property testing • Tester’s role Wednesday, December 2, 2009
  • 27. Tester’s Role Redefined • Acceptance tests, user view of system • Business value focus, PO liaison • Exploratory testing & the difficult stuff • Thinking, contributing team member • Learn programming, train developers Wednesday, December 2, 2009
  • 28. Keys to Agile Testing • Developer testing • Evolving testing tools ➙ programming • Lazy & adaptive mindset • Collaboration Wednesday, December 2, 2009