gistfile1.rb

module RR::Adapters::RRMethods
  def has_keys(*expected_keys)
    RR::WildcardMatchers::HasKeys.new(expected_keys)
  end
end

module RR::WildcardMatchers
  class HasKeys
    def initialize(keys)
      @keys = keys.flatten
    end

    def ==(other)
      @keys.all?  do |key|
        if key.is_a?(Hash)
          key.keys.all? {|hash_key| key[hash_key] == other[hash_key] }
        else
          other.has_key?(key)
        end
      end
    end

    def inspect
      "keys to include #{@keys.map(&:inspect).join(',')}"
    end
  end
end