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Are test cases dead?
The second life with lean test cases
Alexei Vinogradov
Vojtech Barta
Alexei Vinogradov
IT-Consultant
testing, test management, test
automation, coaching
email: alexei@vinogradov-it.de
skype: ...
http://radio-qa.com
Vojtěch Barta
QA, Trainer, Agile guy, photographer
email: bartavoj@gmail.com
website: bartavoj.cz
What is a Test Case?
• Test Cases are for testers to execute functional testing in the most
efficient way providing follow...
Positive motivation
• Functional testing requires structure
• Plan
• Execute
• Track the progress
• Report results
• Repeat
Wrong motivation
• Lack of knowledge
• Bad Requirements
• Trust Issues
Do we need them?
Overview
• Proposition of Lean Test Cases (LTC)
• What is different on LTC from TC
• Examples of LTC
• Comparison to Check...
Lean Test Cases
Lean test cases (LTC) are the written test ideas
that can be executed by a tester who knows and
understand...
Lean Test Cases
like classic Test Cases, but without
• (formal) preconditions
• steps
• (formal) postconditions
• (very of...
Classic Test Cases
Example: (Calculator App) - simple addition
• Preconditions: the app is started, no operation is active...
Lean Test Cases
Examples: (Calculator App)
• It must be possible to add 2 numbers
• It must be possible to multiply 2 numb...
Lean Test Cases
Examples: (Calculator App)
• It must be possible to add the number to
displayed value from previous operat...
Lean Test Cases
Examples: (Calculator App)
• After pressing „M+“ the result of „memory“-cell
is added to the number showin...
Lean Test Cases
Examples: (Traffic Lights App)
• 2 lights at the crossing switch from Red <->
Green:
1. Light 1: Red Light...
LTC vs Classic Test Cases
Similar to test cases:
• manage in TestCase Management Tools
• add meta-data (creation date, lin...
LTC vs Checklists
Format of any given lean test case is similar to
the format of one checklist entry, but:
• LTC not a lis...
LTC vs Explorative
Similarity:
• input test data „generated“ during execution
Difference:
• LTC - test design before execu...
LTC in Agile
• create after user story is defined
• acceptance criterias + more
• share with developers and PO ASAP
• get ...
LTC in Agile
• assign LTC to test automation levels (Module,
Integration, EndToEnd)
LTC-1
LTC-2
LTC-3
..
LTC-N
LTC in Agile
• manage formally or not - up to team
• let’em test! (it works)
LTC in large projects
• even more important to switch to LTC
• help to find bad requirements
• enforce to gather knowledge...
Lean Test Cases: Tips
• in some situations use classic test cases with
steps ( if very complex logic, etc)
• structure you...
Lean test cases: benefits
• time (faster)
• cost (cheaper)
• easier to read for not-testers
Lean test cases: benefits
• less maintenance
Lean test cases: benefits
• more interesting to
execute
Lean test cases: benefits
Lean test cases: summary
• test design more effective and more efficient
• better quality of test execution (more use of
h...
Summary
Test cases are dead!
Long Live (Lean) Test Cases!
Have fun at SQA Days 20!
Photo: Sekhar, India ©
The End.
Questions?
skype: alexejv
email: alexei@vinogradov-it.de
twitter: @i_vino
Test Cases - are they dead?
Test Cases - are they dead?
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Доклад Алексея Виноградова и Войтеха Барты на конференции SQA Days-20. 24-26 ноября 2016. Минск
www.sqadays.com

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Test Cases - are they dead?

  1. 1. Are test cases dead? The second life with lean test cases Alexei Vinogradov Vojtech Barta
  2. 2. Alexei Vinogradov IT-Consultant testing, test management, test automation, coaching email: alexei@vinogradov-it.de skype: alexejv twitter: @i_vino blog: http://qa-blog.alexei-vinogradov.de https://www.softwerkskammer.org/groups/testing
  3. 3. http://radio-qa.com
  4. 4. Vojtěch Barta QA, Trainer, Agile guy, photographer email: bartavoj@gmail.com website: bartavoj.cz
  5. 5. What is a Test Case? • Test Cases are for testers to execute functional testing in the most efficient way providing following information if relevant • Pre-condition • Description • Steps • Post-condition • Test Data • …. Anything else you need... • All of these are optional, specially Steps
  6. 6. Positive motivation • Functional testing requires structure • Plan • Execute • Track the progress • Report results • Repeat
  7. 7. Wrong motivation • Lack of knowledge • Bad Requirements • Trust Issues
  8. 8. Do we need them?
  9. 9. Overview • Proposition of Lean Test Cases (LTC) • What is different on LTC from TC • Examples of LTC • Comparison to Checklists & Explorative • LTC and Agile • LTC and large scale projects
  10. 10. Lean Test Cases Lean test cases (LTC) are the written test ideas that can be executed by a tester who knows and understands the System Under Test (SUT) Not yet
  11. 11. Lean Test Cases like classic Test Cases, but without • (formal) preconditions • steps • (formal) postconditions • (very often) input values
  12. 12. Classic Test Cases Example: (Calculator App) - simple addition • Preconditions: the app is started, no operation is active, display is showing 0. • Steps: 1. press „2“. Expected: 2 is displayed 2. press „+“. Expected: 2 is displayed 3. press „5“, Expected: 5 is displayed 4. press „=„, Expected: 7 is displayed • Postcondition: „7“ is still displayed and will be used for the next operation.
  13. 13. Lean Test Cases Examples: (Calculator App) • It must be possible to add 2 numbers • It must be possible to multiply 2 numbers
  14. 14. Lean Test Cases Examples: (Calculator App) • It must be possible to add the number to displayed value from previous operation (with informal precondition)
  15. 15. Lean Test Cases Examples: (Calculator App) • After pressing „M+“ the result of „memory“-cell is added to the number showing. The result is not displayed, but stays as a new value of „memory“-cell (with informal postcondition)
  16. 16. Lean Test Cases Examples: (Traffic Lights App) • 2 lights at the crossing switch from Red <-> Green: 1. Light 1: Red Light 2: Green 2. Light 1: Red Light 2: Yellow 3. Light 1: Red Light 2: Red 4. Light 1: Red+Yellow Light 2: Red 5. Light 1: Green Light 2: Red (with test data)
  17. 17. LTC vs Classic Test Cases Similar to test cases: • manage in TestCase Management Tools • add meta-data (creation date, links to reqs, creator, priority, functional sets etc.) • test coverage • regression testing
  18. 18. LTC vs Checklists Format of any given lean test case is similar to the format of one checklist entry, but: • LTC not a list, but „database“ of tests • LTC share similarities with classic TC, Checklists - not
  19. 19. LTC vs Explorative Similarity: • input test data „generated“ during execution Difference: • LTC - test design before execution, Explorative - during
  20. 20. LTC in Agile • create after user story is defined • acceptance criterias + more • share with developers and PO ASAP • get feedback from developers and PO
  21. 21. LTC in Agile • assign LTC to test automation levels (Module, Integration, EndToEnd) LTC-1 LTC-2 LTC-3 .. LTC-N
  22. 22. LTC in Agile • manage formally or not - up to team • let’em test! (it works)
  23. 23. LTC in large projects • even more important to switch to LTC • help to find bad requirements • enforce to gather knowledge about project • works very well with clear user stories
  24. 24. Lean Test Cases: Tips • in some situations use classic test cases with steps ( if very complex logic, etc) • structure your (many) tests • make the best use of your test case management tools
  25. 25. Lean test cases: benefits • time (faster) • cost (cheaper)
  26. 26. • easier to read for not-testers Lean test cases: benefits
  27. 27. • less maintenance Lean test cases: benefits
  28. 28. • more interesting to execute Lean test cases: benefits
  29. 29. Lean test cases: summary • test design more effective and more efficient • better quality of test execution (more use of humans cognitive abilities) • can be used for wide variety of projects
  30. 30. Summary Test cases are dead! Long Live (Lean) Test Cases!
  31. 31. Have fun at SQA Days 20! Photo: Sekhar, India ©
  32. 32. The End. Questions? skype: alexejv email: alexei@vinogradov-it.de twitter: @i_vino

Доклад Алексея Виноградова и Войтеха Барты на конференции SQA Days-20. 24-26 ноября 2016. Минск www.sqadays.com

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