Behavior Driven Development with Cucumber

Behavior Driven Development Cucumber with Brandon Keepers ● Collective idea ● http://opensoul.org http://ﬂickr.com/photos/nickatkins/527421404/

Feature: Cucumber In order to share the love As a presenter I will demonstrate behavior driven development with Cucumber Scenario: Behavior Driven Development with Cucumber Given a desire for higher quality software And a tool that executes feature documentation written in plain text When you watch this presentation Then you will gain an understanding of behavior driven development And see examples of behavior driven development with cucumber And be equipped to integrate Cucumber into your development process

Quality

1 Quality meets requirements

Developer Language Client

Developer Stories Client

In order to keep of track movies that I want to see As a NetFlix customer I can add movies to a queue http://dannorth.net/whats-in-a-story

va l ue p ro p o s i t i o n In order to keep of track movies that I want to see As a NetFlix customer I can add movies to a queue http://dannorth.net/whats-in-a-story

In order to keep of track movies that I want to see As a NetFlix customer role I can add movies to a queue http://dannorth.net/whats-in-a-story

In order to keep of track movies that I want to see As a NetFlix customer I can add movies to a queue e at u re f http://dannorth.net/whats-in-a-story

2 Quality works as expected

Test Driven

Behavior Driven

Verify

Conﬁdence

Design

Behavior

Testing Specifying

Cucumber http://ﬂickr.com/photos/nickatkins/527421404/

rbehave rSpec Story Runner Cucumber

http://github.com/aslakhellesoy/cucumber

$ gem install cucumber

Rakeﬁle require 'rubygems' require 'cucumber/rake/task' Cucumber::Rake::Task.new

$ rake features

Rails $ ruby script/plugin install git://github.com/aslakhellesoy/cucumber.git git://github.com/brynary/webrat.git git://github.com/dchelimsky/rspec.git git://github.com/dchelimsky/rspec-rails.git $ ruby script/plugin install git://brandon.local/cucumber git://brandon.local/webrat git://brandon.local/rspec git://brandon.local/rspec-rails

Dependencies $ gem install term-ansicolor treetop diff-lcs hpricot

$ ruby script/generate cucumber

Feature: Manage companies In order to keep track of companies A user Should be able to manage companies 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

features/ companies.feature steps/ company_steps.rb

Given == Setup Given quot;I am logged inquot; do user = Factory(:user) visits new_session_path fills_in ‘Login’, :with => user.login fills_in ‘Password’, :with => user.password clicks_button ‘Login’ end

Given quot;I am logged inquot; do user = Factory(:user) f ac t o r y_g i r l visits new_session_path fills_in ‘Login’, :with => user.login fills_in ‘Password’, :with => user.password clicks_button ‘Login’ end Factory.sequence(:email) {|n| quot;user#{n}@example.comquot; } 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

Given quot;I am logged inquot; do user = Factory(:user) visits new_session_path fills_in 'Login', :with => user.login fills_in 'Password', :with => user.password clicks_button 'Login' end we b rat

When == Change When quot;I create a new company named $namequot; do |name| visits new_company_path fills_in 'Name', :with => name clicks_button 'Create' end

When == Change v a r i a ble When quot;I create a new company named $namequot; do |name| visits new_company_path fills_in 'Name', :with => name clicks_button 'Create' end When I create a new company named Acme

Then == Outcome Then quot;I should see that a company named $name existsquot; do |name| response.body.should =~ Regexp.new(name) end

Feature: Manage companies In order to keep track of companies A user Should be able to manage companies 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 3 steps passsed

Scenario: Paging through leads and rejecting Given a company called Apple Corp. And a company called Pear Inc. And a list for Client A And Apple Corp. is a new lead in a list for Client A And Pear Inc. is a new lead in a list for Client A And I am logged in as a staff member When I view the company overview for Apple Corp. And I reject Apple Corp. And I go to the next lead Then I see the company overview for Pear Inc.

Cucumber or RSpec?

Cucumber or RSpec? BOTH

http://github.com/bmabey/cucumber-tmbundle/

Feature: Cucumber In order to share the love As a presenter I will demonstrate behavior driven development with Cucumber Scenario: Behavior Driven Development with Cucumber Given a desire for higher quality software And a tool that executes feature documentation written in plain text When you watch this presentation Then you will gain an understanding of behavior driven development And see examples of behavior driven development with cucumber And be equipped to integrate Cucumber into your development process 6 steps passed

@bkeepers github.com/ brandon collectiveidea opensoul.org sessions.collectiveidea.com

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Behavior Driven Development with Cucumber

by Brandon Keepers

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Behavior Driven Development with Cucumber Presentation Transcript