BDD & Cucumber
- 1. BDD & Cucumber When All Teammates Speak The Same Language
- 2. What is the Software Development Life Cycle?
- 3. Classic Example Of Collaboration Skills
- 4. Building the wrong software There are only 2 problems in software development: Building the software wrong
- 5. Why Teammates Do Not Understand Each Other It’s All About Brains
- 6. How It Looks Like
- 7. How To Write Software That Really Matters Software Development Is All About Knowing And Delivering WHAT MATTERS Most To The Business Only Due To Effective Communication You Will Know What Matters I’m responsible For what I say. But I’m not responsible for what you understand. I don’t mind being hated. But I hate being misunderstood.
- 8. A Lot Of DDs To Solve Our Problems How Many DDs Do You Know? How Many DDs Do You Really Need? …
- 9. What Is BDD? Behavior-Driven Development (BDD) is an agile software development technique that encourages collaboration between developers, QA and non-technical or business participants in software project. BUSINESS TECHNOLOGY Domain Driven Design Test Driven Development B D D
- 10. What Is BDD?
- 11. What Is BDD?
- 12. BDD’s definition: "It's about focusing on the behavior of an application from the point of view of its stakeholders” BDD says you should elevate your mind to a level of behavioral abstraction above the code implementation. BDD asks questions about behavior of app before and during development to reduce miscommunication. Idea (BDD): user story can be formulated as acceptance test before code is written. What Is BDD?
- 14. A Lot Of DDs To Solve Our Problems
- 15. The Traditional Development Process
- 16. The Development Process Is Applying BDD
- 17. Example
- 18. More Examples
- 21. Сomparison Of Approaches TDD BDD ATDD Focus Unit Testing Requirements Acceptance Tests Value New features are focused on requirements New features align with business outcomes Makes unit testing easier to implement End Users TDD tests are technical and should be understood by developers/testers BDD tests should be understandable for both customers and IT team ATDD Tests should be readable and focused for customers Agile Steps Step1 : Test Step2 : Code Step 3: Refactor Build the functionality incrementally guided by expected behavior Step1 : Discuss Step2 : Develop Step 3: Deliver Test Mapping Each functionality should have implementation of test Each story should have behavior test Each story should have acceptance test
- 22. Advantages Of BDD • Writing tests first in a customer friendly language • Your tests are your specifications and your specifications are your tests • Dan North: “BDD takes the position that you can turn an idea for a requirement into implemented, tested, production-ready code simply and effectively, as long as the requirement is specific enough that everyone knows what’s going on.” • Executable specifications • 31% faster delivery • 4 times less defects
- 24. WHAT IS GHERKIN Feature: 15th QA LAB In order to fill the QA LAB schedule As a Cucumber user I want to talk about BDD with Cucumber Scenario: “BDD & Cucumber” talk Given I have manage to prepare a talk And there are people to hear it When I give the talk Then the audience should learn something
- 25. WHAT IS GHERKIN Feature: 15th QA LAB In order to fill the QA LAB schedule As a Cucumber user I want to talk about BDD with Cucumber Scenario: “BDD & Cucumber” talk Given I have manage to prepare a talk And there are people to hear it When I give the talk Then the audience should learn something
- 26. WHAT IS GHERKIN Feature: 15th QA LAB In order to fill the QA LAB schedule As a Cucumber user I want to talk about BDD with Cucumber Given I have manage to prepare a talk And there are people to hear it When I give the talk Then the audience should learn something Scenario: “BDD & Cucumber” talk
- 27. WHAT IS GHERKIN Feature: 15th QA LAB In order to fill the QA LAB schedule As a Cucumber user I want to talk about BDD with Cucumber Given I have manage to prepare a talk And there are people to hear it When I give the talk Then the audience should learn something Scenario: “BDD & Cucumber” talk
- 28. WHAT IS GHERKIN Feature: 15th QA LAB In order to fill the QA LAB schedule As a Cucumber user I want to talk about BDD with Cucumber I have manage to prepare a talk Scenario: “BDD & Cucumber” talk Given When Then And there are people to hear it I give the talk the audience should learn something Context Event Outcome
- 29. GHERKIN LANGUAGE Feature – Description of the feature file Background – Defines common steps across multiple scenarios Scenario – A feature file can have multiple scenarios, each test is described by the scenario keyword Given – Preconditions of a scenario When – Description of the action which will be executed Then – Specific outcome from executing the last step And – Provides ab additional condition to the step But – Negative conditions from the last executed step Scenario Outline – Enables data to be sent to scenarios using template(s) and examples (Stop code duplication) Examples – Used to provide real life examples for a specific scenario outline
- 30. WHAT TOOLS CAN BE USED • JBehave • RSpec • MSpec • SpecUnit • SpecFlow • Fitnesse • Concordion • Capybara • Cucumber
- 32. INTRODUCTION TO CUCUMBER Cucumber is a software tool that is used for testing other software. Cucumber is written in the Ruby programming language. Cucumber is Aslak Hellesoy’s rewrite of RSpec’s “Story Runner” (April 2008), which was originally written by Dan North. Cucumber works well with Browser Automation tools (Selenium Web Driver). A very active open source project. Supports a variety of languages.
- 33. HOW CUCUMBER EXECUTE SCENARIO
- 34. FEATURE FILE
- 35. RUNNER CLASS
- 40. PARAMETRISATION
- 41. PARAMETRISATION
- 42. DATA TABLES
- 43. DATA TABLES
- 44. DATA TABLES
- 46. HOOKS
- 47. CUCUMBER OPTIONS
- 48. TAGS
- 51. VLADIMIR ARUTIN ISTQB CERTIFIED TEST MANAGER