diff --git a/activeresource/Rakefile b/activeresource/Rakefile
index c392e914140c58e37fcbe344ace05f7a32aae977..54c3fe44c619bdb884fd3362af0ba8b44d2a62d8 100644
--- a/activeresource/Rakefile
+++ b/activeresource/Rakefile
@@ -34,11 +34,12 @@ Rake::TestTask.new { |t|
   t.verbose = true
   t.warning = true
 }
+
 task :isolated_test do
   ruby = File.join(*RbConfig::CONFIG.values_at('bindir', 'RUBY_INSTALL_NAME'))
   activesupport_path = "#{File.dirname(__FILE__)}/../activesupport/lib"
   Dir.glob("test/**/*_test.rb").all? do |file|
-    system(ruby, "-Ilib:test:#{activesupport_path}", file)
+    system(ruby, '-w', "-Ilib:test:#{activesupport_path}", file)
   end or raise "Failures"
 end
 
diff --git a/activeresource/test/cases/observing_test.rb b/activeresource/test/cases/observing_test.rb
index 334b25677276ffce0bc01070bae06b33a35c3274..9599ff7b0f427859aaa9e16f6f396faefbbb2d0d 100644
--- a/activeresource/test/cases/observing_test.rb
+++ b/activeresource/test/cases/observing_test.rb
@@ -1,4 +1,6 @@
 require 'abstract_unit'
+require 'fixtures/person'
+require 'active_support/core_ext/hash/conversions'
 
 class ObservingTest < Test::Unit::TestCase
   cattr_accessor :history
diff --git a/activeresource/test/cases/validations_test.rb b/activeresource/test/cases/validations_test.rb
index a8ab7d64e702ff9833ad696d4d02b0bcdfa418d1..c05f625fb7a4ed09355ca8a8e0c9da065391360f 100644
--- a/activeresource/test/cases/validations_test.rb
+++ b/activeresource/test/cases/validations_test.rb
@@ -1,5 +1,6 @@
 require 'abstract_unit'
-require "fixtures/project"
+require 'fixtures/project'
+require 'active_support/core_ext/hash/conversions'
 
 # The validations are tested thoroughly under ActiveModel::Validations
 # This test case simply makes sur that they are all accessible by