Move improved isolated test runner to AP

actionpack/Rakefile

@@ -34,22 +34,21 @@ end
 desc "Run all unit tests"
 task :test => [:test_action_pack, :test_active_record_integration]
 
-TESTS_GLOB = "test/{abstract,controller,dispatch,template}/**/*_test.rb"
-
 Rake::TestTask.new(:test_action_pack) do |t|
   t.libs << 'test'
 
   # make sure we include the tests in alphabetical order as on some systems
   # this will not happen automatically and the tests (as a whole) will error
-  t.test_files = Dir.glob(TESTS_GLOB).sort
+  t.test_files = Dir.glob('test/{abstract,controller,dispatch,template}/**/*_test.rb').sort
 
   t.verbose = true
   # t.warning = true
 end
 
-task :isolated_test do
-  ruby = File.join(*RbConfig::CONFIG.values_at('bindir', 'RUBY_INSTALL_NAME'))
-  Dir.glob(TESTS_GLOB).all? { |file| system(ruby, '-Ilib:test', file) } or raise "Failures"
+namespace :test do
+  Rake::TestTask.new(:isolated) do |t|
+    t.pattern = 'test/ts_isolated.rb'
+  end
 end
 
 desc 'ActiveRecord Integration Tests'

actionpack/test/ts_isolated.rb

@@ -0,0 +1,16 @@
+require 'test/unit'
+require 'rbconfig'
+require 'rubygems'
+require 'active_support'
+
+class TestIsolated < Test::Unit::TestCase
+  ruby = File.join(*RbConfig::CONFIG.values_at('bindir', 'RUBY_INSTALL_NAME'))
+
+  Dir["#{File.dirname(__FILE__)}/{abstract,controller,dispatch,template}/**/*_test.rb"].each do |file|
+    define_method("test #{file}") do
+      command = "#{ruby} -Ilib:test #{file}"
+      silence_stderr { `#{command}` }
+      assert_equal 0, $?.to_i, command
+    end
+  end
+end