Module: ActiveSupport::Testing::Isolation::Forking

Defined in:
activesupport/lib/active_support/testing/isolation.rb

Instance Method Summary collapse

Instance Method Details

#run_in_isolation(&blk) ⇒ Object 



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# File 'activesupport/lib/active_support/testing/isolation.rb', line 38

def run_in_isolation(&blk)
  read, write = IO.pipe
  read.binmode
  write.binmode

  pid = fork do
    read.close
    yield
    write.puts [Marshal.dump(self.dup)].pack("m")
    exit!
  end

  write.close
  result = read.read
  Process.wait2(pid)
  return result.unpack("m")[0]
end