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BDD with Visual Studio 2012 and SpecFlow

BDD with Visual Studio 2012 and SpecFlow. Learn how SpecFlow enables you to do TDD with friction-free plain-English executable tests. Larry Apke Agile Expert www.agile-doctor.com larry@agile-doctor.com. Agenda. Who are You? Who I am and What I Believe What is BDD? SpecFlow Overview

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BDD with Visual Studio 2012 and SpecFlow

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  1. BDD with Visual Studio 2012 and SpecFlow Learn how SpecFlow enables you to do TDD with friction-free plain-English executable tests. Larry Apke Agile Expert www.agile-doctor.com larry@agile-doctor.com

  2. Agenda Who are You? Who I am and What I Believe What is BDD? SpecFlow Overview Visual Studio 12 SpecFlow Installation Interacting with Code!

  3. Who are you? How many .net programmers? How many using Visual Studio 2012? How many familiar with TDD? How many familiar with BDD? How many using/used SpecFlow?

  4. Who I am: A Certified Scrum Master and Certified Scrum Professional with over 5 years experience in Agile development. A former Director of Software Development, Manager of Software Development, Project Manager, etc. Who I am not: A .Net Programmer

  5. What I believe: If you are a programmer and have not acquainted yourself with and mastered BDD/TDD then you are no longer a true craftsman. “TDD is probably the single most important practice discovered in the last 10 years.“ - Robert MartinFounder, CEO and President Object Mentor Inc. Without automated executable specifications (like those created through BDD), it is nearly impossible to be truly Agile. Over the next five years BDD/TDD will become THE standard for software development.

  6. What is BDD (Behavioral Driven Development)? BDD is a software development process based on test-driven development (TDD). Sometimes described as “TDD done right.” Developed by Dan North as a response to the issues encountered teaching test-driven development. “BDD is a second-generation, outside–in, pull-based, multiple-stakeholder, multiple-scale, high-automation, agile methodology. It describes a cycle of interactions with well-defined outputs, resulting in the delivery of working, tested software that matters.” – Dan North

  7. What is BDD (Behavioral Driven Development)? BDD utilizes Ubiquitous Business Language (UBL), which is composed of plain English, to create executable specifications. Because of UBL, BDD is concerned with the communication between business needs and developers. BDD allows for frameworks like SpecFlow to automate the running of the executable specifications by using Scenarios written using the Gherkin language (Given, When, Then) - called Gherkin because of Cucumber (a Ruby BDD Framework that inspired SpecFlow).

  8. SpecFlow Overview – File Creation Input SpecFlow Feature File Output Unit Test File Step Definitions File

  9. SpecFlow Overview – Running Tests SpecFlow Unit Test File Test Results File Step Definitions File Test Results Report Class File

  10. Visual Studio 12 SpecFlow Installation Easy to install with Visual Studio Gallery Nearly impossible to get working under Visual Studio Express but you can try -http://watirmelon.com/2011/02/18/c-sharp-atdd-on-a-shoestring/ Make sure that you add SpecFlow and Nunit to your Windows path If you use Nunit you will need something to run the tests – like Resharper– but you can create a batch file that will run Nunit and add it to your Tools menu

  11. Visual Studio 12 SpecFlow Installation Batch File Copy and Paste: @echo off nunit-console %1 specflow.exe nunitexecutionreport %2 /xmlTestResult:%3 if NOT %errorlevel% == 0 ( echo "Error generating report - %errorlevel%" GOTO :exit ) if %errorlevel% ==0 TestResult.html :exit

  12. Visual Studio 12 SpecFlow Installation External Tools Setup: Title – Run SpecFlow Command – C:\PATH TO FILE\nameofbatfile.bat Arguments - $(TargetName)$(TargetExt) $(ProjectDir)$(ProjectFileName) $(BinDir)TestResult.xml Initial Directory - $(BinDir) Check Use Output Window

  13. Interacting with Code Setup Project Setup the test engine for your project through NuGet - PM> Install-Package SpecFlow.Nunit Create Feature File Create Step Definitions Run Test(s) Write and Refactor

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