Jvm-bdd-quality-driven
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The document appears to be a presentation on quality driven development and behavior driven development. It discusses testing strategies like unit testing, TDD, integration testing and acceptance testing. It also covers benefits of techniques like TDD, limitations of classic QA approaches, and introduces concepts like feature-first development, outside-in testing, and using a language like Gherkin to define testable features and scenarios. Tools mentioned include jBehave, Scalatest, Cucumber and Capybara.
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Jvm-bdd-quality-driven
- 1. AMIR BARYLKO QUALITY DRIVEN BEHAVIOUR DRIVEN DEVELOPMENT JVM UG JAN 2012 Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 2. WHO AM I? • Architect • Developer • Mentor • Great cook • The one who’s entertaining you for the next hour! Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 3. TESTING Unit tests TDD Integration Tests Acceptance Tests Amir Barylko - BDD Training OCT ‘11 MavenThought Inc. Tuesday, January 10, 2012
- 4. UNIT TESTING • Test for a class or method • No dependencies • Should use mocking • Small • Clear Amir Barylko - BDD Training OCT ‘11 MavenThought Inc. Tuesday, January 10, 2012
- 5. TDD • First write a test that fails (RED) • Write code to make it pass (GREEN) • Check if code can be improved (REFACTOR) • Start again until it’s done Amir Barylko - BDD Training OCT ‘11 MavenThought Inc. Tuesday, January 10, 2012
- 6. BENEFITS OF TDD • Prove that your code • Regression tests as works byproduct • Avoid waste • Makechanges with (debugging) confidence • Increment code quality • Bring back the joy of coding! • Better design Amir Barylko - BDD Training OCT ‘11 MavenThought Inc. Tuesday, January 10, 2012
- 7. WHEN TDD IS NOT ENOUGH •Legacy Code •Refactoring is not viable •Verify functionality across layers •Validate feature end to end Amir Barylko - BDD Training OCT ‘11 MavenThought Inc. Tuesday, January 10, 2012
- 8. INTEGRATION TEST •More than one class •Still some parts can be mocked •Partial functionality of subsystem Amir Barylko - BDD Training OCT ‘11 MavenThought Inc. Tuesday, January 10, 2012
- 9. ACCEPTANCE TEST •Black box testing •Crossing all layers •Should cover all scenarios •External subsystems may be mocked Amir Barylko - BDD Training OCT ‘11 MavenThought Inc. Tuesday, January 10, 2012
- 10. SOFTWARE QUALITY What is it? Low Quality Classic QA Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 11. WHAT DOES IT MEAN? • Better code? • Faster delivery? • Less bugs? • Make sure we deliver the right thing? • Better Processes? Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 12. LOW QUALITY • Lack of testing • Lack of communication • Lack of metrics • Lack of traceability • Wrong tools Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 13. CLASSIC QA • Team separated from developments • Follow scripts or requirements • Done after the feature is implemented • May have more than one project in the queue • Feedback cycle may take weeks • Manual (no automation) Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 14. DOES IT WORK? •Your opinion here...... Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 15. A NEW CONCEPT Feature First Benefits Outside In Approach Runnable features Roles Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 16. FEATURE FIRST • Write the feature before implementation • Developers will implement feature using TDD • QA will validate against feature • Repeat until all features are done Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 17. BENEFITS • Focus on the feature • Testing all the way • Traceability • Quality every step of the process Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 18. OUTSIDE IN APPROACH Red BDD Red Refactor Refactor TDD Green Green Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 19. RUNNABLE FEATURES • Features describe functionality • What if we could run them? • Then features would validate functionality • Becoming live documentation Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 20. ROLES • Who writes the feature? • Who implements the feature? • Who validates the feature? • What’s the role of QA, PM, etc? Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 21. WRITING FEATURES Gherkin Syntax Feature Scenario Steps Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 22. GHERKIN DSL • Business readable DSL • Flush out requirements • Documentation • Automated testing • Used by Cucumber, SpecFlow, jBehave Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 23. SYNTAX Feature: Listing movies As a User I want to list movies So I can see the contents of the library Scenario: Browse available movies Given I have the following movies When I go to "Movies" Then I should see in the listing Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 24. FEATURES • Keyword Feature • The rest is free text Feature: Listing movies As a User I want to list movies So I can see the contents of the library Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 25. SCENARIOS • Each feature file can have multiple scenarios • Each scenario can contain multiple steps • Keywords: • Given When Then • And Not But Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 26. STEPS Scenario: Browse available movies Given I have some movies When I go to the listing page Then I should see all the movies Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 27. TOOLS jBehave Scalatest Cucumber + Capybara jDave Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 28. JBEHAVE Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 29. SCALATEST Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 30. CUCUMBER Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 31. BDD DEMO Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 32. QUESTIONS? Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 33. RESOURCES • Contact me: amir@barylko.com, @abarylko • Download: http://www.orthocoders.com/presentations Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012
- 34. RESOURCES II • jBehave: http://jbehave.org • Cucumber: http://cukes.info • ScalaTest: http://scalatest.org • Selenium: http://seleniumhq.org • jDave: http://jdave.org • EasyB: http://easyb.org Amir Barylko - BDD MavenThought Inc. Tuesday, January 10, 2012