Bdd, cucumber and freinds

 Introduction to BDD
 Introduction to Cucumber
 Stories and Cucumber features
 Building Cucumber Scenarios and Steps
 Tools
 Slicing Cucumber
 Cucumber Catalyst

“I believe that the hardest part of software projects, the
most common source of project failure, is
communication with the customers and users of that
software.
By providing a clear yet precise language to deal with
domains, a DSL can help improve this
communication.”
Martin Fowler

 To meet requirement
 To guarantee quality
verify confidence Design Behaviour

 Scenario
Scenario: title
Given [Context]
And [More Context]
When [Action]
And [Other Action]
Then [Expected Outcome]
But [Unexpected Outcome]

Scenario: search by director
Given the store has movies directed by “Steven
Spielberg”
When I search for “Steven Spielberg”
Then I should see all of the movies directed by “Steven
Spielberg”

 Meet Advanced Gherkin –Multi-Line String
Scenario: register successfully
Given I am on on the registration page
When I sign up as "Jojo Binks"
Then I should receive the following email:
"""
Thanks for signing up Jojo!
Important information about here.
"""

 Building step definition (Example)
Scenario: Create a new company
Given I am logged in
When I create a new company named Acme
Then I should see that a company named Acme exists

 Building step definition – Given
 Given == Setup
Given "I am logged in" do
user = Factory(:user)
visits new_session_path
fills_in ‘Login’, :with => user.login
fills_in ‘Password’, :with => user.password
clicks_button ‘Login’
end

 Building step definition – When
 When == Change
When "I create a new company named $name" do
|name|
visits new_company_path
fills_in 'Name', :with => name
clicks_button 'Create'
end

 Building step definition – Then
 Then == Outcome
Then "I should see that a company named $name exists"
do |name|
response.body.should =~ Regexp.new(name)
end

 Hooks – Before and After
 Generic hooks or hooks by tags
 Background

 Adpating rspec DSL for validation
 DOESN’T adpate rspec mock module
 Use factory_girl instead

 factory_girl: load data into database for test
Given "I am logged in" do
user = Factory(:user)
visits new_session_path
fills_in ‘Login’, :with => user.login
fills_in ‘Password’, :with =>
user.password
clicks_button ‘Login’
end Factory.sequence(:email) {|n| "user#{n}@example.com" }
Factory.define :user do |user|
user.name 'User'
user.email { Factory.next(:email) }
user.login {|u| u.email }
user.password 'password'
user.password_confirmation 'password'
end

 Simulating or drive Browsers
 Feature on Javascript test
 Flexibility on switching drivers to achieve different test
demand
 Flexibility on switching between css and xpath selector
 Covering most of the popular browser driving
 Remote calling (for IE test on VM)

 Highlight keywords in Gherkin
 Autocomplete by hotkey
 Run by hotkey and present visual report

 A DRb server for testing frameworks (RSpec /
Cucumber currently) that forks before each run to
ensure a clean testing state.

 Soren knows all about that : s

 Lazy coverage-aware running of Cucumber acceptance
tests
 Run a scenario if it needs to

 Distributed testing framework
 Spread your tests over processors and/or multiple
machines to test your code faster

 Don’t force structure
 Avoid Noise!
 Avoid Inconsistency
 Balance Abstraction

 Building step abstraction from steps
 Tagging
 Tagging for focused testing
 Tagging for categorizing test by purpose and environs
 Tagging for loading capybara configuration

 Slow builds are the enemy of continuous integration
 Reuse – Spork, Cucover
 Run Just Enough Tests
 Slicing Features with tags
 Just enough Database and try NullDB
 Distributed testing - hydra

 The Rspec Book
 http://www.slideshare.net/josephwilk/rocket-fuelled-
cucumbers
 http://www.slideshare.net/bkeepers/behavior-driven-
development-with-cucumber-presentation
 http://www.slideshare.net/josephwilk/cucumbered
 http://www.slideshare.net/bmabey/cucumber-
automating-the-requirements-language-you-already-
speak

Bdd, cucumber and freinds

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