require 'test_helper'

class OneEmbeddedProxyTest < Test::Unit::TestCase
  def setup
    @post_class = Doc('Post') do
      key :title, String
    end
    @author_class = EDoc('Author') do
      key :name, String
      embedded_in :post
    end
  end

  should "default to nil" do
    @post_class.one :author, :class => @author_class
    @post_class.new.author.should be_nil
  end

  should "be able to build" do
    @post_class.one :author, :class => @author_class

    post = @post_class.create
    author = post.author.build(:name => "John")
    post.author.should be_instance_of(@author_class)
    post.author.should be_new
    post.author.name.should == 'John'
    post.author.should == author
    post.author.post.should == post
  end

  should "be able to replace the association" do
    @post_class.one :author, :class => @author_class

    post = @post_class.new
    author = @author_class.new(:name => 'Frank')
    post.author = author
    post.save
    post.reload

    post.author.should == author
    post.author.nil?.should be_false

    new_author = @author_class.new(:name => 'Emily')
    post.author = new_author
    post.author.should == new_author
  end

  should "not have problem loading root document if embedded one is nil" do
    @post_class.one :author, :class => @author_class
    post = @post_class.create
    
    lambda {
      @post_class.find(post.id)
    }.should_not raise_error
  end

  should "load the parent and root documents for nested embedded documents" do
    @address_class = EDoc('Address') do
      key :city, String
      key :state, String
    end
    @author_class.one :address, :class => @address_class
    @post_class.one :author, :class => @author_class

    post = @post_class.create(:title => 'Post Title', :author => { :name => 'Frank', :address => { :city => 'Boston', :state => 'MA' } })

    post.author.address._parent_document.should == post.author
    post.author.address._root_document.should == post
  end

  should "have boolean method for testing presence" do
    @post_class.one :author, :class => @author_class

    post = @post_class.new
    post.author?.should be_false

    post.author = @author_class.new(:name => 'Frank')
    post.author?.should be_true
  end

end