diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..ceeb05b41
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/tmp
diff --git a/run_test.rb b/run_test.rb
new file mode 100644
index 000000000..d9566a2a6
--- /dev/null
+++ b/run_test.rb
@@ -0,0 +1,26 @@
+#!/usr/bin/env ruby
+#
+# mrbgems test runner
+#
+
+gemname = File.basename(File.dirname(File.expand_path __FILE__))
+
+if __FILE__ == $0
+  repository, dir = 'https://github.com/mruby/mruby.git', 'tmp/mruby'
+  build_args = ARGV
+  build_args = ['all', 'test']  if build_args.nil? or build_args.empty?
+
+  Dir.mkdir 'tmp'  unless File.exist?('tmp')
+  unless File.exist?(dir)
+    system "git clone #{repository} #{dir}"
+  end
+
+  exit system(%Q[cd #{dir}; MRUBY_CONFIG=#{File.expand_path __FILE__} ruby minirake #{build_args.join(' ')}])
+end
+
+MRuby::Build.new do |conf|
+  toolchain :gcc
+  conf.gembox 'default'
+
+  conf.gem File.expand_path(File.dirname(__FILE__))
+end