Fix tests on 1.9

actionpack/lib/action_view/helpers/number_helper.rb

@@ -1,3 +1,5 @@
+require 'active_support/core_ext/float/rounding'
+
 module ActionView
   module Helpers #:nodoc:
     # Provides methods for converting numbers into formatted strings.

activemodel/lib/active_model/core.rb

@@ -1,7 +1,7 @@
 begin
   require 'active_support'
 rescue LoadError
-  activesupport_path = "#{File.dirname(__FILE__)}/../../activesupport/lib"
+  activesupport_path = "#{File.dirname(__FILE__)}/../../../activesupport/lib"
   if File.directory?(activesupport_path)
     $:.unshift activesupport_path
     require 'active_support'

activesupport/lib/active_support/core_ext/class/attribute_accessors.rb

@@ -1,3 +1,5 @@
+require 'active_support/core_ext/array/extract_options'
+
 # Extends the class object with class and instance accessors for class attributes,
 # just like the native attr* accessors for instance attributes.
 #

activesupport/lib/active_support/core_ext/class/delegating_attributes.rb

@@ -1,4 +1,4 @@
-require 'active_support/core_ext/blank'
+require 'active_support/core_ext/object/blank'
 
 class Class
   def superclass_delegating_reader(*names)