cros/tests/cros_ec_extcon.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

from cros.helpers.sysfs import *
import unittest


class TestCrosECextcon(unittest.TestCase):
    def test_cros_ec_extcon_usbc_abi(self):
        """ Checks the cros-ec extcon ABI. """
        match = 0
        for devname in os.listdir("/sys/class/extcon"):
            devtype = read_file("/sys/class/extcon/" + devname + "/name")
            if ".spi:ec@0:extcon@" in devtype:
                self.assertEqual(
                    os.path.exists("/sys/class/extcon/" + devname + "/state"), 1
                )
                for cable in os.listdir("/sys/class/extcon/" + devname):
                    if cable.startswith("cable"):
                        self.assertEqual(
                            os.path.exists(
                                "/sys/class/extcon/" + devname + "/" + cable + "/name"
                            ),
                            1,
                        )
                        self.assertEqual(
                            os.path.exists(
                                "/sys/class/extcon/" + devname + "/" + cable + "/state"
                            ),
                            1,
                        )
                        match += 1
        if match == 0:
            self.skipTest("No extcon device found, skipping")