BSON id parsing

bson_id_parsing_spec.rb

require 'spec_helper'

def parse_id(id)
  BSON::ObjectId(id)
rescue BSON::InvalidObjectId 
  nil
end

describe BSON do
  describe 'when the id is a valid BSON id' do
    it 'returns it' do
      parse_id("SOME VALID BSON ID").must_be_kind_of BSON::ObjectId
    end
  end

  describe 'otherwise' do
    it 'returns nil' do
      parse_id("aiejfioaej").must_be_nil
    end
  end
end