require 'spec_helper'

describe Immutable::Set do
  describe '#marshal_dump/#marshal_load' do
    let(:ruby) { File.join(RbConfig::CONFIG['bindir'], RbConfig::CONFIG['ruby_install_name']) }

    let(:child_cmd) do
      %Q|#{ruby} -I lib -r immutable -e 'set = Immutable::Set[:one, :two]; $stdout.write(Marshal.dump(set))'|
    end

    let(:reloaded_hash) do
      IO.popen(child_cmd, 'r+') do |child|
        reloaded_hash = Marshal.load(child)
        child.close
        reloaded_hash
      end
    end

    it 'can survive dumping and loading into a new process' do
      reloaded_hash.should eql(S[:one, :two])
    end

    it 'is still possible to test items by key after loading' do
      reloaded_hash.should include :one
      reloaded_hash.should include :two
    end
  end
end