gistfile1.txt

# example.feature

Feature: Example

  Scenario: Eat

    Given I am hungry
    Then I should eat

# example_steps.rb

World do
  nil
end

Given /^I am hungry$/ do
  Given "I have not eaten for 3 days"
end

Given /^I have not eaten for (.+) days$/ do |days|
  raise "I give up"
end

# raises:

      undefined method `exception=' for nil:NilClass (NoMethodError)
      ./example_steps.rb:6:in `/^I am hungry$/'
      example.feature:5:in `Given I am hungry'