old_contents: # Test fairness of scheduler
  
  try:
      import uasyncio as asyncio
  except ImportError:
      try:
          import asyncio
      except ImportError:
          print("SKIP")
          raise SystemExit
  
  
  async def task(id, t):
      print("task start", id)
      while True:
          if t > 0:
              print("task work", id)
          await asyncio.sleep(t)
  
  
  async def main():
      t1 = asyncio.create_task(task(1, -0.01))
      t2 = asyncio.create_task(task(2, 0.1))
      t3 = asyncio.create_task(task(3, 0.2))
      t3 = asyncio.create_task(task(4, -100))
      await asyncio.sleep(0.5)
      t1.cancel()
      t2.cancel()
      t3.cancel()
      print("finish")
  
  
  asyncio.run(main())
  
new_contents: # Test fairness of scheduler
  
  try:
      import uasyncio as asyncio
  except ImportError:
      try:
          import asyncio
      except ImportError:
          print("SKIP")
          raise SystemExit
  
  
  async def task(id, t):
      print("task start", id)
      while True:
          if t > 0:
              print("task work", id)
          await asyncio.sleep(t)
  
  
  async def main():
      t1 = asyncio.create_task(task(1, -0.01))
      t2 = asyncio.create_task(task(2, 0.1))
      t3 = asyncio.create_task(task(3, 0.18))
      t4 = asyncio.create_task(task(4, -100))
      await asyncio.sleep(0.5)
      t1.cancel()
      t2.cancel()
      t3.cancel()
      t4.cancel()
      print("finish")
  
  
  asyncio.run(main())
  
subject: Make uasyncio_fair test more reliable by adjusting sleeps.