issue-141.rb

require 'mongoid'
require 'rspec'

Mongoid.configure do |config|
  config.master = Mongo::Connection.new.db('testing')
end

class Person
  include Mongoid::Document
  collection.remove

  field :ssn

  embeds_one :pet
  embeds_many :favorites
  accepts_nested_attributes_for :pet, :favorites
end

class Pet
  include Mongoid::Document
  field :name
  embedded_in :person, :inverse_of => :pet
end

class Favorite
  include Mongoid::Document
  field :title
  embedded_in :person, :inverse_of => :favorites
end

describe Mongoid::Associations do
  context "embeds_one" do
    describe "creating associated document" do
      let(:person) { Person.create!( :ssn => "1234", :pet_attributes => { :name => 'odie' } ) }
      specify { person.reload.pet.name.should == 'odie' }
    end

    describe "updating associated document" do
      let(:person) { Person.create!( :ssn => "1234", :pet_attributes => { :name => 'garfield' } ) }
      before { person.update_attributes(:pet_attributes => { :name => 'odie' } ) }
      specify { person.reload.pet.name.should == 'odie' }
    end

  end

  context "embeds_many" do

    describe "creating associated document" do
      let(:person) { Person.create!( :ssn => "1234", :favorites_attributes => { '0' => { :title => 'something' } } ) }
      specify { person.reload.favorites.first.title.should == 'something' }
    end

    describe "updating associated document" do
      let(:person) { Person.create!( :ssn => "1234", :favorites => { '0' => { :title => 'nothing' } } ) }
      before { person.update_attributes(:favorites_attributes => { '0' => { :title => 'something' } } ) }
      specify { person.reload.favorites.first.title.should == 'something' }
    end

  end
end