```ruby
require 'spec_helper'

orm_adapter_path = `bundle show orm_adapter`.chomp
require File.join(orm_adapter_path, 'spec/orm_adapter/example_app_shared')

module Neo4j
  module OrmSpec
    class User
      include Neo4j::ActiveNode

      property :name, :index => :exact
      property :rating, :type => Integer, :index => :exact

      index :name

      has_n(:notes).to('Neo4j::OrmSpec::Note')
    end
  
    class Note
      include Neo4j::ActiveNode

      property  :body, :index => :exact
      
      has_one(:owner).from('Neo4j::OrmSpec::User', :notes)
    end
  
    describe '[Neo4j orm adapter]', :type => :integration do
      before :each do
        Neo4j::Session.current._query('MATCH (n) OPTIONAL MATCH (n)-[r]-() DELETE n,r;')
      end

#      describe "the OrmAdapter class" do
#        subject { Neo4j::ActiveNode::OrmAdapter }
#  
#        specify "#model_classes should return all of the model classes (that are not in except_classes)" do
#          subject.model_classes.should include(User, Note)
#        end
#      end
    
      it_should_behave_like "example app with orm_adapter" do
        let(:user_class) { User }
        let(:note_class) { Note }
      end
    end
  end
end
```

Use helper to delete DB
user
```ruby
require 'spec_helper'

orm_adapter_path = `bundle show orm_adapter`.chomp
require File.join(orm_adapter_path, 'spec/orm_adapter/example_app_shared')

module Neo4j
  module OrmSpec
    class User
      include Neo4j::ActiveNode

      property :name, :index => :exact
      property :rating, :type => Integer, :index => :exact

      index :name

      has_n(:notes).to('Neo4j::OrmSpec::Note')
    end
  
    class Note
      include Neo4j::ActiveNode

      property  :body, :index => :exact
      
      has_one(:owner).from('Neo4j::OrmSpec::User', :notes)
    end
  
    describe '[Neo4j orm adapter]', :type => :integration do
      before :each do
        delete_db
      end

#      describe "the OrmAdapter class" do
#        subject { Neo4j::ActiveNode::OrmAdapter }
#  
#        specify "#model_classes should return all of the model classes (that are not in except_classes)" do
#          subject.model_classes.should include(User, Note)
#        end
#      end
    
      it_should_behave_like "example app with orm_adapter" do
        let(:user_class) { User }
        let(:note_class) { Note }
      end
    end
  end
end
```
assistant