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Intro to Postmodern Testing

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Modern testing isn’t keeping up with Agile and DevOps. Postmodern testing, like its artistic parallel, is the acceptance of this reality and practically combines the learnings of what works and what doesn’t in today’s software engineering landscape. This webinar shares the basic Dos and don’ts of postmodern testing that save time, money and make testers awesome members of the engineering team. Postmodern testing is informed by Jason’s experiences at Google, Microsoft, uTest, and test.ai. Don’t learn the hard way, join us for an introduction to postmodern testing and avoid the mistakes, and learn from what worked testing software for billions of users and thousands of applications.

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Intro to Postmodern Testing

  1. 1. Jason Arbon Pos d Tes g
  2. 2. “...collage, simplification, appropriation, performance art, the recycling of past styles and themes in a modern-day context, as well as the break-up of the barrier between fine and high arts and low art and popular culture.” Wikipedia Postmodern Art...
  3. 3. Software Engineering Today Platform Data, AI & Microservices Complex Client Apps
  4. 4. IGNORE DOGMAS
  5. 5. M M
  6. 6. Do’s a D n’t
  7. 7. Brave and Creative
  8. 8. Test Organization Testers Report to “Development Leaders” No Central Organization No Shared Labs / Resources Ad-hoc collaboration
  9. 9. Test vs Verification
  10. 10. TvV Ratio Average Complexity, Danger, Speed Testing vs Verification Ratio
  11. 11. Agile/Chaos? Testers operate outside of agile/lean flow Continuous Risk Analysis and Mitigation
  12. 12. Manual Vs Automation
  13. 13. Regular Sanity Checks: 20% Regression Testing: 20% Exploratory Testing: 30% Thinking/Learning: 30% Only report to team on Risk and Blocking issues. Testing Manual
  14. 14. Only by ‘real’ programmers. Never BDD, Cucumber, Model-based, Image-based, Record/Replay. Few Regression Tests “Automation is not Testing”: FALSE Generative No New Frameworks No Testability APIs Inside Out Automation
  15. 15. Inside-Out Testing <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Gmail</title> <script src="mark_as_unread_tests.js"</script>
  16. 16. Inside-Out Testing Full Access to Entire DOM Secure Access Server APIs/Data Easy to Execute / Distribute / Debug No Framework Needed Can run almost anywhere Any Dev can debug
  17. 17. Instrumentation Add simple instrumentation to all code. #times executed Check counts after tests and monitor production “Back button click rates went up..something wrong!”
  18. 18. Microservices / APIs Consumers of MS/APIs add tests for their dependencies Best if all in same ‘source control’ Continuous Monitoring Unsupervised Learning to Look for Problems en masse Best if called from client machine (not test machines)
  19. 19. Reporting No Elaborate Dashboards As little data as possible Always ready to assess readiness Test Counts / % Pass Meaningless “Any reason we shouldn’t release?”
  20. 20. Quantify Quality Acceptable Crash Rate Data Quality Relevance Measures Quantify Qualitative Measures Don’t Optimize for Business Outcome
  21. 21. AI Drives, Plays DOTA, Paints, Designs Furniture and Cities, Makes Phone Calls, etc. All of Google: AI-First Can Test Itself (Auto-ML) Yes, it will soon do most Software Testing Most testing will soon be centralized, and better.
  22. 22. Vendor Vendor out everything you can If Vendor can do it, low-value Vendor can do it at scale 90% of Testing is a Cost Center 10% is more difficult than engineering and design--focus on that. Only 10% is valued / Strategic
  23. 23. Pyramid -> Cake Reuse and Scale have dramatic impact Inverts cost gradient as more abstract things are more easily automated. AI Test Cake
  24. 24. Postmodern Testing Cake
  25. 25. Other Don’ts Code Coverage Static Analysis Test Selection Call Testers ‘Developers’ Hire “Good” Testers. Leave the Profession Layoff all your Testers Google Still Hiring Manual Testers!
  26. 26. jason@test.ai Jason Arbon @jarbon Let’s Connect! test.ai @testdotai
  27. 27. Architectural Photos from: http://www.archiecho.com/item/54989_70-breathtakingly-beautiful-examples-of-postmodern -architecture Hand: https://www.designspiration.net/save/28063818931/ Head and Computer: https://www.gettyimages.co.nz/detail/photo/post-modern-landscape-high-res-stock-photogra phy/521753650 Residence, Stairway: https://www.houzz.com.au/photo/175622-overmyer-residence-modern-exterior-san-francisc o Medussa: http://reynoldahouse.org/exhibitions/detail/off-the-wall-postmodern-art-at-reynolda-0 Workers: http://www.hatjecantz.de/postmodernism-5051-1.html

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