@gil_zilberfeld

Introduction to BDD

@gil_zilberfeld

Hello!

I AM GIL ZILBERFELD

www.gilzilberfeld.comwww.everydayunittesting.com

@gil_zilberfeld

@gil_zilberfeld

A history lesson…

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eXtreme Programming

◉User stories◉System metaphor (and DDD’s ubiquitous

language)◉Customer is always available◉Unit-test first◉Acceptance tests

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What are the benefits of test-first?

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The Three AmigosGeorge Dinwiddie

DeveloperTester

Business analyst

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Behavior driven developmentDan North

AKA:Acceptance test DD

Specification by exampleExample DD

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It’s all about the conversations!

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Where do stories come from?

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Give me an example!

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Ambiguous requirements

The Movie

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BDD/ATDD frameworks

FitFitnesseJBehave

CucumberSpecFlow

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The Gherkin language

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Steps

Scenarios

Narratives/Features

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Scenario

Given I’m driving a Formula 1 carWhen I start accelerating from 0km/hThen I get to 100km/h in 2 seconds

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The Story (or Narrative)

In order to drive fasterAs a driverI want a better engine

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What is the acceptance criteria?

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How’s this story?

In order to approve a transactionAs a userI want to press the “Approve” button

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And this one?

In order to transfer moneyAs a userI want to login to the app

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BDD/ATDD frameworks

FitFitnesse

ConcordionJBehave

CucumberSpecFlow

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Demo

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Good user stories

IndependentNegotiableValuableEstimableSmallTestableBill Wake, 2003

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Good user stories

IndependentNegotiableValuableEstimableSmallTestable

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Ron Jeffries said

As an author of the Agile Manifesto

I want  that stupid story format to go away

So that people can get to the essence of

user stories

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Better user stories

◉ Drop the template

◉ Tell the story in a sentence

◉ Anchor it

◉ Unveil the motive

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Better user stories

◉ Imagine the demo

◉ Give context

◉ The general rules

◉ Exception to the rules

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Thanks!

ANY QUESTIONS?

You can find me at:@gil_zilberfeld

http://www.GilZilberfeld.comhttp://www.EverydayUnitTesting.com