require File.dirname(__FILE__) + '/../spec_helper'

describe Entity do

  describe "an object which is an entity" do

    class SomeEntity
      include Entity
    end

    before(:each) do
      @entity = SomeEntity.new(:identifier => 'e_id')
    end

    it "should allow creation with an identifier" do
      @entity.identifier.should == 'e_id'
    end

    it "should require an argument hash" do
      lambda{ SomeEntity.new(:foo) }.should raise_error(ArgumentError, /supply a hash/)
    end

    it "should require an identifier" do
      lambda{ p = SomeEntity.new({}) }.should raise_error(ArgumentError, /identifier/)
    end

    it "should allow testing against a given identifier" do
      @entity.is?('e_id').should be_true
    end

    it "should assign other argument hash entries to ivars & accessorize them" do
      entity = SomeEntity.new(:identifier => 'e_id', :foo => 'red', :bar => 'blue')
      entity.foo.should == 'red'
      entity.bar.should == 'blue'
    end

    it "should accessorize ad-hoc args for all instances of that class" do
      SomeEntity.new(:identifier => 'e_id', :foo => 'red', :bar => 'blue')
      entity = SomeEntity.new(:identifier => 'e_id', :foo => 'green')
      entity.foo.should == 'green'
      entity.bar.should == nil
    end

  end

end