# encoding: utf-8
require 'simplecov'

$LOAD_PATH.unshift File.expand_path("../../lib", __FILE__)
require "io_shuten"

### MONKEY PATCH raise

# usage: raise my_instance
#        raise :foo
#        raise anything_else_which_is_an_object
#        raise foo.bar.baz

class Module
  def alias_method_chain( target, feature )
    alias_method "#{target}_without_#{feature}", target
    alias_method target, "#{target}_with_#{feature}"
  end
end

class Object
  def raise_with_helpfulness(*args)
    raise_without_helpfulness(*args)
  rescue TypeError => e
    raise_without_helpfulness args.first.inspect if ['exception class/object expected', 'exception object expected'].include?(e.to_s)
    raise_without_helpfulness e
  end
  alias_method_chain :raise, :helpfulness
end

### Custom Matchers

require 'rspec/expectations'

RSpec::Matchers.define :inherit_from do |expected|
  match do |actual|
    actual.ancestors.include?(expected)
  end
end