acts_as_blog

I using RSpec for testing my Ruby on Rails app.
For testing, if the correct attr_accessible are set, I use the following code.

My Class Media

class Media < ActiveRecord::Base
  attr_accessible :caption
end

Usage in my media_spec.rb

it "should have protected attributes" do
  @media = Media.create!(@valid_attributes)
  @media.should accessible_attributes(:caption)
end

Here the used code in lib/rspec_attributes_accessible.rb

module RspecAttributesAccessible
  class AccessibleAttributes

    def initialize(*attributes)
      @attributes = attributes.to_a
    end

    def matches?(target)
      @target = target
      calculate_accessible_attributes()
      perform_check()
    end

    def failure_message
      "expected #{@failed_attribute} to be accessible"
    end

    def negative_failure_message
      "expected #{@failed_attribute} to not be accessible"
    end

    private

    def calculate_accessible_attributes()
      attr_access = @target.class.send("attr_accessible").to_a.map(&:to_sym)
      @failed_attribute = []
      if((@attributes - attr_access).length != 0 or (attr_access - @attributes).length != 0)
        @failed_attribute << (@attributes - attr_access)
        @failed_attribute << (attr_access - @attributes)
      end
      nil
    end   

    def perform_check()
      @failed_attribute.empty?
    end
  end

  def accessible_attributes(*attributes)
    AccessibleAttributes.new(*attributes)
  end
end

You have to include the lib in your spec_helper.rb

Spec::Runner.configure do |config|
   config.include RspecAttributesAccessible # lib/rspec_attributes_accessible.rb
end

Useful links:

• http://railspikes.com/2008/9/22/is-your-rails-application-safe-from-mass-assignment
• http://afreshcup.com/2008/12/14/auditing-for-attr_accessible/
• http://snippets.dzone.com/posts/show/4712

Be Sociable, Share!

•