added region to the presenter which allows it to be displayed in the …

…report

lib/claws/collection/ec2.rb

@@ -14,7 +14,7 @@ def get(filters = {})
           end
 
           region.instances.each do |instance|
-            collection << Claws::EC2::Presenter.new(instance)
+            collection << Claws::EC2::Presenter.new(instance, :region => region.name)
           end
         end
 

lib/claws/presenter/ec2.rb

@@ -6,12 +6,17 @@ module EC2
     class Presenter
       attr_writer :roles
 
-      def initialize(instance, has_roles = [])
+      def initialize(instance, options = {})
         @ec2 = instance.extend(Claws::Support)
-        @roles = has_roles
+        @roles = options[:roles] || []
+        @region = options[:region]
         freeze
       end
 
+      def region
+        @region || 'N/A'
+      end
+
       def roles
         @roles.empty? ? 'N/A' : @roles.join(', ')
       end

spec/presenter/ec2_spec.rb

@@ -28,7 +28,7 @@
     cap = double('Claws::Capistrano')
     cap.stub(:roles).with(host).and_return(%w{app web})
 
-    @full_presenter = subject.new(full_instance, cap.roles(full_instance.public_dns))
+    @full_presenter = subject.new(full_instance, :region => 'us-east-1', :roles => cap.roles(full_instance.public_dns))
 
     less_instance = double(AWS::EC2, :tags => nil)
     @less_presenter = subject.new(less_instance)
@@ -42,6 +42,16 @@
     end
   end
 
+  describe '#region' do
+    it 'can be defined' do
+      @full_presenter.region.should == 'us-east-1'
+    end
+
+    it 'is not required' do
+      @less_presenter.region.should == 'N/A'
+    end
+  end
+
   describe '#roles' do
     it 'can be defined' do
       @full_presenter.roles.should == 'app, web'