text: """Unit test for RemoteValueUpDown objects."""
  import pytest
  
  from xknx import XKNX
  from xknx.dpt import DPTArray, DPTBinary
  from xknx.exceptions import ConversionError
  from xknx.remote_value import RemoteValueUpDown
  from xknx.telegram import GroupAddress, Telegram
  from xknx.telegram.apci import GroupValueWrite
  
  
  class TestRemoteValueUpDown:
      """Test class for RemoteValueUpDown objects."""
  
      def test_to_knx(self):
          """Test to_knx function with normal operation."""
          xknx = XKNX()
          remote_value = RemoteValueUpDown(xknx)
          assert remote_value.to_knx(RemoteValueUpDown.Direction.UP) == DPTBinary(0)
          assert remote_value.to_knx(RemoteValueUpDown.Direction.DOWN) == DPTBinary(1)
  
      def test_from_knx(self):
          """Test from_knx function with normal operation."""
          xknx = XKNX()
          remote_value = RemoteValueUpDown(xknx)
          assert remote_value.from_knx(DPTBinary(0)) == RemoteValueUpDown.Direction.UP
          assert remote_value.from_knx(DPTBinary(1)) == RemoteValueUpDown.Direction.DOWN
  
      def test_to_knx_invert(self):
          """Test to_knx function with normal operation."""
          xknx = XKNX()
          remote_value = RemoteValueUpDown(xknx, invert=True)
          assert remote_value.to_knx(RemoteValueUpDown.Direction.UP) == DPTBinary(1)
          assert remote_value.to_knx(RemoteValueUpDown.Direction.DOWN) == DPTBinary(0)
  
      def test_from_knx_invert(self):
          """Test from_knx function with normal operation."""
          xknx = XKNX()
          remote_value = RemoteValueUpDown(xknx, invert=True)
          assert remote_value.from_knx(DPTBinary(0)) == RemoteValueUpDown.Direction.DOWN
          assert remote_value.from_knx(DPTBinary(1)) == RemoteValueUpDown.Direction.UP
  
      def test_to_knx_error(self):
          """Test to_knx function with wrong parametern."""
          xknx = XKNX()
          remote_value = RemoteValueUpDown(xknx)
          with pytest.raises(ConversionError):
              remote_value.to_knx(1)
  
      async def test_set(self):
          """Test setting value."""
          xknx = XKNX()
          remote_value = RemoteValueUpDown(xknx, group_address=GroupAddress("1/2/3"))
          await remote_value.down()
          assert xknx.telegrams.qsize() == 1
          telegram = xknx.telegrams.get_nowait()
          assert telegram == Telegram(
              destination_address=GroupAddress("1/2/3"),
              payload=GroupValueWrite(DPTBinary(1)),
          )
          await remote_value.up()
          assert xknx.telegrams.qsize() == 1
          telegram = xknx.telegrams.get_nowait()
          assert telegram == Telegram(
              destination_address=GroupAddress("1/2/3"),
              payload=GroupValueWrite(DPTBinary(0)),
          )
  
      async def test_process(self):
          """Test process telegram."""
          xknx = XKNX()
          remote_value = RemoteValueUpDown(xknx, group_address=GroupAddress("1/2/3"))
          telegram = Telegram(
              destination_address=GroupAddress("1/2/3"),
              payload=GroupValueWrite(DPTBinary(1)),
          )
          assert remote_value.value is None
          await remote_value.process(telegram)
          assert remote_value.value == RemoteValueUpDown.Direction.DOWN
  
      async def test_to_process_error(self):
          """Test process errornous telegram."""
          xknx = XKNX()
          remote_value = RemoteValueUpDown(xknx, group_address=GroupAddress("1/2/3"))
  
          telegram = Telegram(
              destination_address=GroupAddress("1/2/3"),
              payload=GroupValueWrite(DPTArray(0x01)),
          )
          assert await remote_value.process(telegram) is False
  
          telegram = Telegram(
              destination_address=GroupAddress("1/2/3"),
              payload=GroupValueWrite(DPTBinary(3)),
          )
          assert await remote_value.process(telegram) is False
  
          assert remote_value.value is None
  