working tests to prevent foo bleed across multiple scenarios

spec/models/foo.rb

@@ -1,5 +1,6 @@
-class Foo
-  include AASM
+module Fooable
+  def self.included(base)
+    base.class_eval do
       aasm do
         state :open, :initial => true, :before_exit => :before_exit
         state :closed, :before_enter => :before_enter
@@ -13,6 +14,8 @@ class Foo
           transitions :from => [:open], :to => [:closed, :final], :guard => :always_false
         end
       end
+    end
+  end
 
   def always_false
     false
@@ -23,10 +26,21 @@ class Foo
 
   def before_enter
   end
+
   def before_exit
   end
 end
 
+class Foo
+  include AASM
+  include Fooable
+end
+
+class FooGlobal
+  include AASM
+  include Fooable
+end
+
 class FooTwo < Foo
   include AASM
   aasm do

spec/unit/callbacks_spec.rb

@@ -371,7 +371,7 @@ end
 describe 'global error_on_all_events_callback callbacks' do
   describe "with an error_on_all_events" do
     before do
-      class Foo
+      class FooGlobal
         # this hack is needed to allow testing of parameters, since RSpec
         # destroys a method's arity when mocked
         attr_accessor :data
@@ -385,7 +385,7 @@ describe 'global error_on_all_events_callback callbacks' do
         end
       end
 
-      @foo = Foo.new
+      @foo = FooGlobal.new
     end
 
     it_behaves_like 'an implemented callback that accepts error' do
@@ -408,7 +408,7 @@ end
 describe 'global ensure_on_all_events_callback callbacks' do
   describe "with an ensure_on_all_events" do
     before do
-      class Foo
+      class FooGlobal
         # this hack is needed to allow testing of parameters, since RSpec
         # destroys a method's arity when mocked
         attr_accessor :data
@@ -422,7 +422,7 @@ describe 'global ensure_on_all_events_callback callbacks' do
         end
       end
 
-      @foo = Foo.new
+      @foo = FooGlobal.new
     end
 
     it_behaves_like 'an implemented callback' do