test_read_write.py 文件源码

def test_uint_1_chan_1_samp(self, x_series_device, seed):
        # Reset the pseudorandom number generator with seed.
        random.seed(seed)

        do_port = random.choice(x_series_device.do_ports)

        with nidaqmx.Task() as task:
            task.do_channels.add_do_chan(
                do_port.name, line_grouping=LineGrouping.CHAN_FOR_ALL_LINES)

            # Generate random values to test.
            values_to_test = [int(random.getrandbits(do_port.do_port_width))
                              for _ in range(10)]

            values_read = []
            for value_to_test in values_to_test:
                task.write(value_to_test)
                time.sleep(0.001)
                values_read.append(task.read())

            assert values_read == values_to_test

            # Verify setting number_of_samples_per_channel (even to 1)
            # returns a list.
            value_read = task.read(number_of_samples_per_channel=1)
            assert isinstance(value_read, list)
            assert len(value_read) == 1