'utf-8' codec can't decode byte 0xc0

Another testcase is failed.

The test com.canonical.certification::ethernet/detect failed with the error list blow:
-------------[ Detect if at least one ethernet device is detected ]-------------
ID: com.canonical.certification::ethernet/detect
Category: com.canonical.plainbox::ethernet
... 8< -------------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/nest-m_b8ini3.9a94080dfa9d0226560c697ac550c8dc840cf7385cc17eb075a488d5c7c11d21/network_device_info.py", line 393, in <module>
    udev = UdevDevices(args.category)
  File "/tmp/nest-m_b8ini3.9a94080dfa9d0226560c697ac550c8dc840cf7385cc17eb075a488d5c7c11d21/network_device_info.py", line 338, in __init__
    self._collect_devices()
  File "/tmp/nest-m_b8ini3.9a94080dfa9d0226560c697ac550c8dc840cf7385cc17eb075a488d5c7c11d21/network_device_info.py", line 346, in _collect_devices
    output = check_output(cmd).decode(sys.stdout.encoding)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc0 in position 38854: invalid start byte

E: DEVPATH=/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:3b/PNP0C09:00/PNP0C0A:00/power_supply/BAT0
E: SUBSYSTEM=power_supply
E: POWER_SUPPLY_NAME=BAT0
E: POWER_SUPPLY_TYPE=Battery
E: POWER_SUPPLY_STATUS=Full
E: POWER_SUPPLY_PRESENT=1
E: POWER_SUPPLY_TECHNOLOGY=Li-poly
E: POWER_SUPPLY_CYCLE_COUNT=2
E: POWER_SUPPLY_VOLTAGE_MIN_DESIGN=11580000
E: POWER_SUPPLY_VOLTAGE_NOW=13278000
E: POWER_SUPPLY_POWER_NOW=0
E: POWER_SUPPLY_ENERGY_FULL_DESIGN=39300000
E: POWER_SUPPLY_ENERGY_FULL=39300000
E: POWER_SUPPLY_ENERGY_NOW=39300000
E: POWER_SUPPLY_CAPACITY=100
E: POWER_SUPPLY_CAPACITY_LEVEL=Full
E: POWER_SUPPLY_MODEL_NAME=LNV-5B10W51860Àà
E: POWER_SUPPLY_MANUFACTURER=LGES
E: POWER_SUPPLY_SERIAL_NUMBER= 496

The POWER_SUPPLY_MODEL_NAME=LNV-5B10W51860Àà has some non-utf8 character.

The E0 and C0 are à and À in extended ASCII.

POWER_SUPPLY_MODEL_NAME=LNV-5B10W51860Àà

$ hexdump /sys/class/power_supply/BAT0/model_name
0000000 4e4c 2d56 4235 3031 3557 3831 3036 e0c0
0000010 000a
0000011

I found a method to fix this issue, I could use 'replace' or 'ignore' errors, from the result I prefer the 'ignore'.

--- a/checkbox_support/parsers/__init__.py
+++ b/checkbox_support/parsers/__init__.py
@@ -71,7 +71,7 @@ def main():
         raise SystemExit()
     parser = AVAILABLE_PARSERS[args.parser_name]
     stdin = sys.stdin
- with io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8') as stdin:
+ with io.TextIOWrapper(sys.stdin.buffer, encoding='utf-8', errors='ignore') as stdin:
         try:
             text = stdin.read()
             print(run_parsing(parser, text))

Using 'replace'
$ checkbox-cli run com.canonical.certification::udev_json | grep LNV
        "product": "LNV-5B10W51860\ufffd\ufffd",
        "product_slug": "LNV-5B10W51860__",
Finalizing session that hasn't been submitted anywhere: checkbox-run-2022-06-17T08.03.06

Using 'ignore'.
$ checkbox-cli run com.canonical.certification::udev_json | grep LNV
        "product": "LNV-5B10W51860",
        "product_slug": "LNV-5B10W51860",
Finalizing session that hasn't been submitted anywhere: checkbox-run-2022-06-17T08.03.32

The test failed with error list below:
-----[ Identify what service is managing each physical network interface ]------
ID: com.canonical.certification::net_if_management
Category: com.canonical.plainbox::uncategorised
... 8< -------------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/nest-q6kekfja.85214daceec20cd8651bf53a569971cc3a614b158baeaeabe09973416fbf3505/net_if_management.py", line 199, in <module>
    main()
  File "/tmp/nest-q6kekfja.85214daceec20cd8651bf53a569971cc3a614b158baeaeabe09973416fbf3505/net_if_management.py", line 188, in main
    results = identify_managers(has_netplan=is_netplan_available(),
  File "/tmp/nest-q6kekfja.85214daceec20cd8651bf53a569971cc3a614b158baeaeabe09973416fbf3505/net_if_management.py", line 97, in identify_managers
    wired = get_network_interfaces('NETWORK')
  File "/tmp/nest-q6kekfja.85214daceec20cd8651bf53a569971cc3a614b158baeaeabe09973416fbf3505/net_if_management.py", line 39, in get_network_interfaces
    output = sp.check_output(cmd, shell=True).decode(sys.stdout.encoding)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc0 in position 38854: invalid start byte

The test failed with error list below:

ID: com.canonical.certification::touchpad/palm-rejection-firmware-labeling_ELAN0678_00_04F3_3195_Touchpad
Category: com.canonical.plainbox::touchpad
... 8< -------------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/nest-9roc0600.478c4952642bd256030a1147ed323c16a2d1f00251873c42ea6472976890f74e/touchpad_confidence_bit.py", line 54, in <module>
    main()
  File "/tmp/nest-9roc0600.478c4952642bd256030a1147ed323c16a2d1f00251873c42ea6472976890f74e/touchpad_confidence_bit.py", line 33, in main
    path = TouchpadDevices().devices[product_slug]
  File "/tmp/nest-9roc0600.478c4952642bd256030a1147ed323c16a2d1f00251873c42ea6472976890f74e/touchpad_confidence_bit.py", line 12, in __init__
    self._collect_devices()
  File "/tmp/nest-9roc0600.478c4952642bd256030a1147ed323c16a2d1f00251873c42ea6472976890f74e/touchpad_confidence_bit.py", line 17, in _collect_devices
    output = check_output(cmd).decode(sys.stdout.encoding)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc0 in position 38854: invalid start byte
------------------------------------------------------------------------- >8 ---