Adding specs to test issue #26 on github

spec/integration/mongoid/associations_spec.rb

@@ -49,6 +49,16 @@
 
   end
 
+  context "creation of an embedded association on a callback" do
+
+    it "allows the use of create!" do
+      artist = Artist.create!(:name => "Depeche Mode")
+      artist.songs.size.should == 2
+      artist.songs.first.title.should == "0"
+      artist.songs.last.title.should == "1"
+    end
+  end
+
   context "criteria on has many embedded associations" do
 
     before do

spec/models/callbacks.rb

@@ -0,0 +1,18 @@
+class Artist
+  include Mongoid::Document
+  field :name
+  has_many :songs
+
+  after_create :create_songs
+
+  protected
+  def create_songs
+    2.times { |n| songs.create!(:title => "#{n}") }
+  end
+end
+
+class Song
+  include Mongoid::Document
+  field :title
+  belongs_to :artist, :inverse_of => :songs
+end