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Behavior Driven DevelopmentRoman Yankovskyroman@yankovsky.mehttp://roman.yankovsky.me/http://plus.google.com/+RomanYankovsky/

12th August, 2014Download a free trial – NOW!http://embt.co/trialdownloads

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This Skill Sprint Works with . . .

• Windows• OS X• Android• iOS• RAD Studio• Appmethod• Object Pascal• C++

• RAD Studio XE6 DocWiki– http://embt.co/raddocwiki– http://docwiki.embarcadero.com/RADStudio/XE6/en/

• Appmethod 1.14 DocWiki– http://embt.co/appmethoddocwiki – http://docwiki.appmethod.com/appmethod/1.14/topics/en/

• Appmethod supports the FireMonkey framework on all 4 platforms while RAD Studio, Delphi and C++Builder also support VCL on Windows. Contact sales with any questions!

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Communication is the Key

Customer := TCustomer.Create;

…

We would like to encourage new users to buy in your shop. Therefore we offer

10% discount for their first order.

1. Register a user2. Order a book3. Verify price

Product Owner Software Engineer QA

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Shared Understanding

Product Owner Software Engineer QA

Given the user has not ordered yetWhen the user adds a book with the price of EUR 10 into his shopping cartThen the shopping cart sub-total is EUR 9

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Behavior Driven DevelopmentGherkinBusiness Readable, Domain Specific Language that lets you describe software’s behaviour without detailing how that behaviour is implemented.https://github.com/cucumber/cucumber/wiki/Gherkin

I do think that the greatest potential benefit of DSLs comes when business people participate directly in the writing of the DSL code. The sweet spot, however is in making DSLs business-readable rather than business-writeable. If business people are able to look at the DSL code and understand it, then we can build a deep and rich communication channel between software development and the underlying domain.

© Martin Fowler

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User Story in BDD

In order to …As a …I want …

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User Story in BDD

In order to avoid silly mistakesAs a math idiotI want to be told the sum of two numbers

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User Story in BDD

Context

Event

Outcome

Scenario:

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User Story in BDD

Context

Event

Outcome

Scenario:GIVEN

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User Story in BDD

Context

Event

Outcome

Scenario:GIVEN

WHEN

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User Story in BDD

Context

Event

Outcome

Scenario:GIVEN

WHEN

THEN

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User Story in BDD

Feature: Calculator In order to avoid silly mistakes As a math idiot I want to be told the sum and the multiplication of two numbers

Scenario: Add two numbers Given I have entered 50 in calculator And I have entered 50 in calculator When I press Add Then the result should be 100 on the screen

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DEMONSTRATIONDelphiSpec

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Resources

• DelphiSpec– https://github.com/RomanYankovsky/DelphiSpec

• Samples– https://github.com/RomanYankovsky/DelphiSpec/tree/master/Demo

• Gherkin– https://github.com/cucumber/cucumber/wiki/Gherkin

• Blog Posts– http://roman.yankovsky.me/?p=1299– http://roman.yankovsky.me/?p=1458– http://roman.yankovsky.me/?p=1648

Download a free trial – NOW!http://embt.co/trialdownloads

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Q & A

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