module ActiveSupport module Testing class RemoteError < StandardError attr_reader :message, :backtrace def initialize(exception) @message = "caught #{exception.class.name}: #{exception.message}" @backtrace = exception.backtrace end end class ProxyTestResult def initialize @calls = [] end def add_error(e) e = Test::Unit::Error.new(e.test_name, RemoteError.new(e.exception)) @calls << [:add_error, e] end def __replay__(result) @calls.each do |name, args| result.send(name, *args) end end def method_missing(name, *args) @calls << [name, args] end end module Isolation def self.forking_env? !ENV["NO_FORK"] && RUBY_PLATFORM !~ /mswin|mingw|java/ end def run(result) unless defined?(@@ran_class_setup) self.class.setup if self.class.respond_to?(:setup) @@ran_class_setup = true end yield(Test::Unit::TestCase::STARTED, name) @_result = result serialized = run_in_isolation do |proxy| begin super(proxy) { } rescue Exception => e proxy.add_error(Test::Unit::Error.new(name, e)) end end proxy = Marshal.load(serialized) proxy.__replay__(@_result) yield(Test::Unit::TestCase::FINISHED, name) end module Forking def run_in_isolation(&blk) read, write = IO.pipe pid = fork do read.close proxy = ProxyTestResult.new yield proxy write.puts [Marshal.dump(proxy)].pack("m") exit! end write.close result = read.read Process.wait2(pid) return result.unpack("m")[0] end end module Subprocess # Crazy H4X to get this working in windows / jruby with # no forking. def run_in_isolation(&blk) require "tempfile" if ENV["ISOLATION_TEST"] proxy = ProxyTestResult.new yield proxy File.open(ENV["ISOLATION_OUTPUT"], "w") do |file| file.puts [Marshal.dump(proxy)].pack("m") end exit! else Tempfile.open("isolation") do |tmpfile| ENV["ISOLATION_TEST"] = @method_name ENV["ISOLATION_OUTPUT"] = tmpfile.path load_paths = $-I.map {|p| "-I\"#{File.expand_path(p)}\"" }.join(" ") `#{Gem.ruby} #{load_paths} #{$0} #{ORIG_ARGV.join(" ")} -t\"#{self.class}\"` ENV.delete("ISOLATION_TEST") ENV.delete("ISOLATION_OUTPUT") return tmpfile.read.unpack("m")[0] end end end end include forking_env? ? Forking : Subprocess end end end # Only in subprocess for windows / jruby. if ENV['ISOLATION_TEST'] require "test/unit/collector/objectspace" class Test::Unit::Collector::ObjectSpace def include?(test) super && test.method_name == ENV['ISOLATION_TEST'] end end end