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EMBARCADERO TECHNOLOGIESEMBARCADERO TECHNOLOGIES
Behavior Driven
Development
Roman Yankovsky
roman@yankovsky.me
http://roman.yankovsky.me/
http://plus.google.com/+RomanYankovsky/
12th August, 2014
Download a free trial – NOW!
http://embt.co/trialdownloads
EMBARCADERO TECHNOLOGIES
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!
EMBARCADERO TECHNOLOGIES
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 user
2. Order a book
3. Verify price
Product Owner Software Engineer QA
EMBARCADERO TECHNOLOGIES
Shared Understanding
Product Owner Software Engineer QA
Given the user has not ordered yet
When the user adds a book with the price of EUR 10 into his shopping cart
Then the shopping cart sub-total is EUR 9
EMBARCADERO TECHNOLOGIES
Behavior Driven Development
Gherkin
Business 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
EMBARCADERO TECHNOLOGIES
User Story in BDD
In order to …
As a …
I want …
EMBARCADERO TECHNOLOGIES
User Story in BDD
In order to avoid silly mistakes
As a math idiot
I want to be told the sum of two numbers
EMBARCADERO TECHNOLOGIES
User Story in BDD
Context
Event
Outcome
Scenario:
EMBARCADERO TECHNOLOGIES
User Story in BDD
Context
Event
Outcome
Scenario:
GIVEN
EMBARCADERO TECHNOLOGIES
User Story in BDD
Context
Event
Outcome
Scenario:
GIVEN
WHEN
EMBARCADERO TECHNOLOGIES
User Story in BDD
Context
Event
Outcome
Scenario:
GIVEN
WHEN
THEN
EMBARCADERO TECHNOLOGIES
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
EMBARCADERO TECHNOLOGIES
DEMONSTRATION
DelphiSpec
EMBARCADERO TECHNOLOGIES
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
EMBARCADERO TECHNOLOGIESEMBARCADERO TECHNOLOGIES
Q & A
Download your free trial now!
http://embt.co/trialdownloads
@EmbarcaderoTech

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Behavior driven development in Delphi

  • 1. EMBARCADERO TECHNOLOGIESEMBARCADERO TECHNOLOGIES Behavior Driven Development Roman Yankovsky roman@yankovsky.me http://roman.yankovsky.me/ http://plus.google.com/+RomanYankovsky/ 12th August, 2014 Download a free trial – NOW! http://embt.co/trialdownloads
  • 2. EMBARCADERO TECHNOLOGIES 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!
  • 3. EMBARCADERO TECHNOLOGIES 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 user 2. Order a book 3. Verify price Product Owner Software Engineer QA
  • 4. EMBARCADERO TECHNOLOGIES Shared Understanding Product Owner Software Engineer QA Given the user has not ordered yet When the user adds a book with the price of EUR 10 into his shopping cart Then the shopping cart sub-total is EUR 9
  • 5. EMBARCADERO TECHNOLOGIES Behavior Driven Development Gherkin Business 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
  • 6. EMBARCADERO TECHNOLOGIES User Story in BDD In order to … As a … I want …
  • 7. EMBARCADERO TECHNOLOGIES User Story in BDD In order to avoid silly mistakes As a math idiot I want to be told the sum of two numbers
  • 8. EMBARCADERO TECHNOLOGIES User Story in BDD Context Event Outcome Scenario:
  • 9. EMBARCADERO TECHNOLOGIES User Story in BDD Context Event Outcome Scenario: GIVEN
  • 10. EMBARCADERO TECHNOLOGIES User Story in BDD Context Event Outcome Scenario: GIVEN WHEN
  • 11. EMBARCADERO TECHNOLOGIES User Story in BDD Context Event Outcome Scenario: GIVEN WHEN THEN
  • 12. EMBARCADERO TECHNOLOGIES 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
  • 14. EMBARCADERO TECHNOLOGIES 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
  • 15. EMBARCADERO TECHNOLOGIESEMBARCADERO TECHNOLOGIES Q & A Download your free trial now! http://embt.co/trialdownloads @EmbarcaderoTech

Editor's Notes

  1. Few Slides, more demos Include links on the reference slide
  2. Specifiy the samples used Add in links to Code Central for the code and DocWiki for the Tutorials (Appmethod / RAD Studio)