require 'minitest/autorun' require 'active_support/test_case' require 'rbconfig' require 'active_support/core_ext/kernel/reporting' class TestIsolated < ActiveSupport::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}" result = silence_stderr { `#{command}` } assert_block("#{command}\n#{result}") { $?.to_i.zero? } end end end