Module: Minitest::EMSync

Defined in:
lib/minitest/em_sync.rb

Constant Summary collapse

VERSION = 
'0.1.0'

Instance Method Summary collapse

Instance Method Details

#done ⇒ Object 



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# File 'lib/minitest/em_sync.rb', line 49

def done
  return unless @em_reactor.alive?
  EM.next_tick { EM.stop }
  em_transfer unless @em_reactor == Fiber.current
end

#em_transfer ⇒ Object 



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# File 'lib/minitest/em_sync.rb', line 55

def em_transfer
  res = @em_reactor.transfer
  raise res if res.is_a? Exception
  res
end

#setup ⇒ Object 



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# File 'lib/minitest/em_sync.rb', line 6

def setup
  super()
  @current_fiber = Fiber.current
  @em_reactor = Fiber.new do
    begin
      EM.run do
        @current_fiber.transfer
      end
    rescue => e
      @current_fiber.transfer e
    end
  end
  em_transfer
end

#sync(df) ⇒ Object 



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# File 'lib/minitest/em_sync.rb', line 21

def sync(df)
  f = Fiber.current
  res = nil
  xback = proc do |*args|
    if f == Fiber.current && args.first.is_a?(Exception)
      raise args.first
    elsif f == Fiber.current
      res = args.size == 1 ? args.first : args
    else
      f.transfer(*args)
    end
  end

  df.callback(&xback)
  df.errback(&xback)

  if res
    res
  else
    em_transfer
  end
end

#teardown ⇒ Object 



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# File 'lib/minitest/em_sync.rb', line 44

def teardown
  super()
  done
end