new_contents: import RPi.GPIO as GPIO
  import time
  
  # This test is made for a quick check of the gpios
  
  # List of the in channels to test. When pressed they output a message.
  in_chanels = []
  
  # A list of output channels to test. These whill be switched on and off in a pattern.
  out_chanels = []
  
  def switch_called(channel):
  	print 'Edge detected on channel %s'%channel
  	
  for in_channel in in_chanels:
      GPIO.setup(in_channel, GPIO.IN, pull_up_down=GPIO.PUD_DOWN )
      GPIO.add_event_detect(in_channel, GPIO.RISING, callback=switch_called, bouncetime=300)
      
  for out_channel in out_chanels:
      GPIO.setup(out_channel, GPIO.OUT)
      GPIO.output(out_channel, GPIO.LOW)
  	
  print 'Start output test'
  while True:
      for out_channel in out_chanels:
      	time.sleep(1)
      	GPIO.output(out_channel, not GPIO.input(out_channel))
      
      
subject: Test for rudimentary io tests added