test_properties.py 文件源码

def test_float_property(self, x_series_device):

        with nidaqmx.Task() as task:
            ai_channel = task.ai_channels.add_ai_voltage_chan(
                x_series_device.ai_physical_chans[0].name, max_val=5)

            # Test property default value.
            assert ai_channel.ai_max == 5

            # Test property setter and getter.
            max_value = 10
            ai_channel.ai_max = max_value
            assert ai_channel.ai_max == max_value

            # Test property deleter. Reading this property will throw an
            # error after being reset.
            del ai_channel.ai_max
            with pytest.raises(DaqError) as e:
                read_value = ai_channel.ai_max
            assert e.value.error_code == -200695