BDD Cucumber example Feature File

greeter_says_hello.feature

Feature: greeter says hello

  In order to start learning RSpec and Cucumber
  As a reader of The RSpec Book
  I want a greeter to say Hello
  
  Scenario: Greeter says hello
   Given a greeter
   When I send it the greet message
   Then I should see "Hello Cucumber!"

greeter_steps.rb

class CucumberGreeter
  def greet
    "Hello Cucumber!"
   end
end

Given /^a greeter$/ do
  @greeter = CucumberGreeter.new
end

When /^I send it the greet message$/ do
  @message = @greeter.greet
end

Then /^I should see "([^"]*)"$/ do |greeting|
  @message.should == greeting
end