require File.dirname(__FILE__) + '/../../../../../../spec_helper'
require File.dirname(__FILE__) + '/shared_examples_spec'
include OpenEHR::RM::DataStructures::History
include OpenEHR::RM::Composition::Content::Entry

describe Observation do
  it_should_behave_like 'entry'

  before(:each) do
    data = stub(History, :archetype_node_id => 'at0002')
    state = stub(History, :archetype_node_id => 'at0003')
    @observation = Observation.new(:archetype_node_id => 'at0001',
                                   :name => @name,
                                   :language => @language,
                                   :encoding => @encoding,
                                   :subject => @subject,
                                   :data => data,
                                   :state => state)
  end

  it 'should be an instance of Observation' do
    @observation.should be_an_instance_of Observation
  end

  it 'data should be assigned properly' do
    @observation.data.archetype_node_id.should == 'at0002'
  end

  it 'should raise ArgumentError when nil assigned to data' do
    lambda {
      @observation.data = nil
    }.should raise_error ArgumentError
  end

  it 'state should be assigned properly' do
    @observation.state.archetype_node_id.should == 'at0003'
  end
end