Added destroyed? to embedded documents.

lib/mongo_mapper/embedded_document.rb

@@ -38,6 +38,10 @@ def embedded_in(owner_name)
     end
 
     module InstanceMethods
+      def destroyed?
+        _root_document.destroyed?
+      end
+
       def save(options={})
         if result = _root_document.try(:save, options)
           @new = false

test/functional/test_embedded_document.rb

@@ -81,6 +81,23 @@ def setup
     end
   end
 
+  context "#destroyed?" do
+    setup do
+      @doc = @klass.create(:pets => [@pet_klass.new(:name => 'sparky')])
+    end
+
+    should "be false if root document is not destroyed" do
+      @doc.should_not be_destroyed
+      @doc.pets.first.should_not be_destroyed
+    end
+
+    should "be true if root document is destroyed" do
+      @doc.destroy
+      @doc.should be_destroyed
+      @doc.pets.first.should be_destroyed
+    end
+  end
+
   should "be able to save" do
     person = @klass.create