require 'rubygems'

$LOAD_PATH.unshift(File.dirname(__FILE__))
$LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
require 'differ'

RSpec.configure do |config|
  # config.order            = 'random'
  # config.profile_examples = 3
end

def diff(*parts)
  x = Differ::Diff.new
  x.instance_variable_set(:@raw, parts)
  return x
end

class String
  def +@
    Differ::Change.new(:insert => self)
  end

  # this breaks rspec currently
  # undefined method `call' for nil:NilClass
  # def -@
  #   Differ::Change.new(:delete => self)
  # end

  def >>(to)
    Differ::Change.new(:delete => self, :insert => to)
  end
end