Cucumber And Bdd

Cucumber and BDD
Nashville Ruby on Rails meetup November 19, 2009 Josh Crews

Behavior Driven Development (BDD)
first: describe what the software does
second: write the code to fulfill it
(behavior drives development)

BDD
Separate software design (one job)
from
writing code (a different job)

BDD - design example Given I am a bureau owner When I go to the homepage And I am logged in When I go to the speakers page And I click on "Add a speaker" And I fill in "speaker_name" with "Tad" And I press "Create profile" Then I should see "Tad" And I should see "Exclusive with Steve's speakers"

Cucumber
software for BDD
that takes plain english,
Ruby translations of plain english,
and runs integration test/stories against your application

Cucumber - step definition Given /^I am a bureau owner$/ do bureau = Factory(:bureau, :name => "Steve's speakers") @user = Factory(:user, :bureau => bureau)end

Cucumber’s sidekick: webrat
Cucumber reads the story
Webrat drives the browser
When /^I go to (.+)$/ do |page_name| visit path_to(page_name) end end end

Cucumber benefits
Joy in programming
clears the mind
controls feature-drift
defines mini-milestones and git commits

Cucumber benefits
Leaves a trail of feature-still-works guarantees
Easy re-factor with confidence

Cucumber setup
http://cukes.info /
Railscasts #155, #159

Cucumber: other
Not a direct replacement for Test::Unit, Shoulda, Rspec
Cucumber can run integration tests on any application (different languages or frameworks)

Cucumber: Let’s use it!
End of presentation--now to the terminal.

http://www.joshcrews.com	14
http://www.slideshare.net	3
http://joshcrews.com	1

Cucumber And Bdd

by joshcrews on Nov 20, 2009

Accessibility

Categories

Tags

Upload Details

Usage Rights

3 Embeds 18

Statistics

Cucumber And Bdd — Presentation Transcript