esp-idf/examples/peripherals/usb/device/tusb_ncm/pytest_usb_device_ncm.py

# SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
# SPDX-License-Identifier: CC0-1.0
import subprocess
import time

import pytest
from pytest_embedded import Dut


@pytest.mark.esp32s2
@pytest.mark.usb_device
def test_usb_device_ncm_example(dut: Dut) -> None:
    netif_mac = dut.expect(r'Network interface HW address: ([0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2}:[0-9A-Fa-f]{2})')
    netif_mac = netif_mac.group(1).decode('utf-8')
    dut.expect_exact('USB NCM and WiFi initialized and started')
    dut.expect_exact('Returned from app_main()')
    time.sleep(1)   # Wait 1s for the network interface to appear
    out_bytes = subprocess.check_output('ifconfig', shell=True, timeout=5)
    out_str = out_bytes.decode('utf-8')
    print('expected network interface HW address: ', netif_mac)
    print('ifconfig command output:\n', out_str)
    if netif_mac in out_str:
        print("NCM device's MAC address {} was found in system network interfaces".format(netif_mac))
    else:
        raise AssertionError('NCM device not found in network interface list')