1 files changed, 15 insertions, 0 deletions
diff --git a/activesupport/test/ts_isolated.rb b/activesupport/test/ts_isolated.rb
new file mode 100644
index 0000000000..9378a13766
--- /dev/null
+++ b/activesupport/test/ts_isolated.rb
@@ -0,0 +1,15 @@
+require 'test/unit'
+require 'rbconfig'
+require 'active_support/core_ext/kernel/reporting'
+
+class TestIsolated < Test::Unit::TestCase
+  ruby = File.join(*RbConfig::CONFIG.values_at('bindir', 'RUBY_INSTALL_NAME'))
+
+  Dir["#{File.dirname(__FILE__)}/**/*_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