SpecFlow Executable Specifications
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This document outlines an agenda for a lunch and learn on SpecFlow, a .NET framework for behavior-driven development (BDD). The agenda includes introductions to BDD, SpecFlow, and a demo of creating SpecFlow specifications. Benefits are discussed such as creating shared understanding and reducing assumptions. Challenges like test organization and state sharing are also covered. It concludes that capturing acceptance criteria in Gherkin specs and iterating with the business can lead to detailed requirements and automated regression tests.
![© Copyright 2011 ADP, Inc. Proprietary and Confidential Information2
Agenda - 1 hour
• [10 min] - Introduction to BDD & Executable
Specifications
• [05 min] - Overview of .NET BDD Tools
• [05 min] - Introducing SpecFlow
• [20 min] - DEMO / Hands on
• [05 min] - Benefits
• [05 min] - Problems & Pro Tips
• [05 min] - BDD vs. Unit Tests
• [05 min] – Conclusion & further study](https://image.slidesharecdn.com/adventuresinspecflow-150304050405-conversion-gate01/85/SpecFlow-Executable-Specifications-2-320.jpg)
![© Copyright 2011 ADP, Inc. Proprietary and Confidential Information20
Conclusion
Sam’s 3 step guide to success!
1. Capture the User Story Acceptance Criteria as
Gherkins
2. Implement SpecFlow Specs and iterate with changes
to Gherkins [Acceptance Criteria WILL change]
3. You get detailed and correct acceptance criteria and
automated regression tests. Everybody wins.](https://image.slidesharecdn.com/adventuresinspecflow-150304050405-conversion-gate01/85/SpecFlow-Executable-Specifications-20-320.jpg)
![© Copyright 2011 ADP, Inc. Proprietary and Confidential Information22
Further Study
http://stackoverflow.com/questions/307895/what-is-the-
most-mature-bdd-framework-for-net
http://www.specflow.org/resources/
Specification by Example [Gojko Adzic, 2011]
The Cucumber Book [Matt Waynne, 2012]
The Art of Unit Testing [Roy Osherove, 2009]](https://image.slidesharecdn.com/adventuresinspecflow-150304050405-conversion-gate01/85/SpecFlow-Executable-Specifications-22-320.jpg)
SpecFlow Executable Specifications
- 1. Agile Continuous Improvement Lunch & Learn Adventures in SpecFlow BDD in Data Hub Configuration (a.k.a. SEC)
- 2. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information2 Agenda - 1 hour • [10 min] - Introduction to BDD & Executable Specifications • [05 min] - Overview of .NET BDD Tools • [05 min] - Introducing SpecFlow • [20 min] - DEMO / Hands on • [05 min] - Benefits • [05 min] - Problems & Pro Tips • [05 min] - BDD vs. Unit Tests • [05 min] – Conclusion & further study
- 3. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information3 Agenda - 1 hour *NO FREE PIZZA*
- 4. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information4 Introduction to BDD & Executable Specifications
- 5. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information5 The Question What does the Customer want?
- 6. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information6 Not (only) about testing 1. User Story Acceptance Criteria 2. Shared understanding about outcomes 3. Removes implicit expectations (assumptions) 4. Reduces friction in the team 5. What does our solution do and not do?
- 7. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information7 * Driven Development “Behavior Driven Development” – Dan North “Specification by Example” “Executable Specifications” “Acceptance Test Driven Development” (ATDD) “Test Driven Development”
- 8. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information8 Overview of .NET BDD Tools (there are a lot)
- 9. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information9 .NET BDD Frameworks & Libraries SpecFlow – Cucumber for .NET NSpec MSpec TestStack.BDDify NBehave “Vanila” NUnit/MSTest/xUnit.net
- 10. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information10 Explore what’s out there Have a play and figure out which is best for your team and organisation SpecFlow is one of many options A new awesome framework might be released tomorrow
- 11. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information11 Introducing SpecFlow
- 12. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information12 DEMO CODE
- 13. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information13 Benefits
- 14. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information14 Benefits Human readable (Gherkin - DSL) Build Context Incrementally Specification & Documentation Early discovery of assumptions in acceptance criteria Early discovery of technical assumptions Intermediary (Gherkin) between User Story and Code
- 15. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information15 Problems & Pro Tips
- 16. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information16 Problems & Pro Tips SpecFlow comes from Cucumber (Ruby) Sharing state between Steps Test organisation & structure Test naming Mock or end-to-end? Maintenance
- 17. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information17 BDD and Unit Tests
- 18. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information18 BDD and Unit Tests Do SpecFlow Specs replace unit tests? SpecFlow more suited for larger End-to-end tests Unit Tests for Devs, BDDS for SCRUM Team & Stackholders SpecFlow generates NUnit tests automatically DEMO
- 19. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information19 Conclusion
- 20. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information20 Conclusion Sam’s 3 step guide to success! 1. Capture the User Story Acceptance Criteria as Gherkins 2. Implement SpecFlow Specs and iterate with changes to Gherkins [Acceptance Criteria WILL change] 3. You get detailed and correct acceptance criteria and automated regression tests. Everybody wins.
- 21. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information21 Conclusion Was it worth it? Is anyone going to read our Gherkin Specs? The effort (money) needed to create and maintain the Specs needs to taken into account The Team needs to be agile & adopt Gherkin and “Spec first mentality” Change in thinking & culture
- 22. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information22 Further Study http://stackoverflow.com/questions/307895/what-is-the- most-mature-bdd-framework-for-net http://www.specflow.org/resources/ Specification by Example [Gojko Adzic, 2011] The Cucumber Book [Matt Waynne, 2012] The Art of Unit Testing [Roy Osherove, 2009]
- 23. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information23 Questions? BE AGILE
- 24. © Copyright 2011 ADP, Inc. Proprietary and Confidential Information24 Thank you