Let's see what ruby version we are running.

Rakefile

@@ -62,12 +62,13 @@ task :test => "test:units"
 namespace :test do
   Rake::TestTask.new(:all) do |t|
     t.test_files = FileList[
+      'test/*_test.rb',
       'test/lib/*_test.rb',
       'test/contrib/*_test.rb',
       'test/functional/*_test.rb'
     ]
     t.warning = true
-    t.verbose = false
+    t.verbose = true
   end
 
   Rake::TestTask.new(:units) do |t|

rakelib/ruby19.rake

@@ -81,7 +81,7 @@ namespace "ruby19" do
 
     desc "Run the all the tests in Ruby 1.9"
     task :all, :opts, :needs => [:env19] do |t, args|
-      test_files = FileList['test/functional/*_test.rb', 'test/lib/*_test.rb']
+      test_files = FileList['test/*_test.rb', 'test/functional/*_test.rb', 'test/lib/*_test.rb']
       Ruby19.run_tests(test_files, args.opts)
     end
   end

test/ruby_version_test.rb

@@ -0,0 +1,9 @@
+require 'test/unit'
+
+class RubyVersionTest < Test::Unit::TestCase
+  def test_ruby_version
+    puts(`which ruby`)
+    puts(`which ruby19`)
+    puts "\nRUBY VERSION = #{RUBY_VERSION}"
+  end
+end