Need help running pytest tests from a remote machine

[Abhiram-R]

Hi,

Can someone help me set up the pytest command for remote testing. Based on my current understanding the command that I'm using on my machine is: pytest --lg-env remote.yaml --lg-coordinator username@IP_ADDR test_shell.py

But its showing error:

(venv) root@VIRTU-439654:/home/user2/Downloads/labgridenv# pytest --lg-env ./remote.yaml --lg-coordinator [email protected] test_shell.py 
============================= test session starts ==============================
platform linux -- Python 3.10.15, pytest-8.3.3, pluggy-1.5.0
rootdir: /home/user2/Downloads/labgridenv
plugins: labgrid-24.1.dev122
collected 1 item                                                               

test_shell.py F                                                          [100%]

=================================== FAILURES ===================================
_________________________________ test_target __________________________________

self = Serial<id=0x7fdfa2d35fc0, open=False>(port='rfc2217://teuservbox:41171?ign_set_control&timeout=3.0', baudrate=1843200, bytesize=8, parity='N', stopbits=1, timeout=None, xonxoff=False, rtscts=False, dsrdtr=False)

    def open(self):
        """\
        Open port with current settings. This may throw a SerialException
        if the port cannot be opened.
        """
        self.logger = None
        self._ignore_set_control_answer = False
        self._poll_modem_state = False
        self._network_timeout = 3
        if self._port is None:
            raise SerialException("Port must be configured before it can be used.")
        if self.is_open:
            raise SerialException("Port is already open.")
        try:
>           self._socket = socket.create_connection(self.from_url(self.portstr), timeout=5)  # XXX good value?

venv/lib/python3.10/site-packages/serial/rfc2217.py:420: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
/usr/lib/python3.10/socket.py:836: in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

host = 'teuservbox', port = 41171, family = 0
type = <SocketKind.SOCK_STREAM: 1>, proto = 0, flags = 0

    def getaddrinfo(host, port, family=0, type=0, proto=0, flags=0):
        """Resolve host and port into list of address info entries.
    
        Translate the host/port argument into a sequence of 5-tuples that contain
        all the necessary arguments for creating a socket connected to that service.
        host is a domain name, a string representation of an IPv4/v6 address or
        None. port is a string service name such as 'http', a numeric port number or
        None. By passing None as the value of host and port, you can pass NULL to
        the underlying C API.
    
        The family, type and proto arguments can be optionally specified in order to
        narrow the list of addresses returned. Passing zero as a value for each of
        these arguments selects the full range of results.
        """
        # We override this function since we want to translate the numeric family
        # and socket type values to enum constants.
        addrlist = []
>       for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
E       socket.gaierror: [Errno -2] Name or service not known

/usr/lib/python3.10/socket.py:967: gaierror

During handling of the above exception, another exception occurred:

self = SerialDriver(target=Target(name='main', env=Environment(config_file='./remote.yaml')), name=None, state=<BindingState.bound: 1>, txdelay=0.0, timeout=3.0)

    def open(self):
        """Opens the serialport, does nothing if it is already open"""
        if not self.status:
            try:
>               self.serial.open()

venv/lib/python3.10/site-packages/labgrid/driver/serialdriver.py:102: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = Serial<id=0x7fdfa2d35fc0, open=False>(port='rfc2217://teuservbox:41171?ign_set_control&timeout=3.0', baudrate=1843200, bytesize=8, parity='N', stopbits=1, timeout=None, xonxoff=False, rtscts=False, dsrdtr=False)

    def open(self):
        """\
        Open port with current settings. This may throw a SerialException
        if the port cannot be opened.
        """
        self.logger = None
        self._ignore_set_control_answer = False
        self._poll_modem_state = False
        self._network_timeout = 3
        if self._port is None:
            raise SerialException("Port must be configured before it can be used.")
        if self.is_open:
            raise SerialException("Port is already open.")
        try:
            self._socket = socket.create_connection(self.from_url(self.portstr), timeout=5)  # XXX good value?
            self._socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
        except Exception as msg:
            self._socket = None
>           raise SerialException("Could not open port {}: {}".format(self.portstr, msg))
E           serial.serialutil.SerialException: Could not open port rfc2217://teuservbox:41171?ign_set_control&timeout=3.0: [Errno -2] Name or service not known

venv/lib/python3.10/site-packages/serial/rfc2217.py:424: SerialException

The above exception was the direct cause of the following exception:

target = Target(name='main', env=Environment(config_file='./remote.yaml'))

    def test_target(target):
>       barebox = target.get_driver("CommandProtocol")

test_shell.py:2: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
venv/lib/python3.10/site-packages/labgrid/target.py:234: in get_driver
    return self._get_driver(cls, name=name, resource=resource, activate=activate)
venv/lib/python3.10/site-packages/labgrid/target.py:208: in _get_driver
    self.activate(found[0])
venv/lib/python3.10/site-packages/labgrid/target.py:467: in activate
    self.activate(supplier)
venv/lib/python3.10/site-packages/labgrid/target.py:471: in activate
    client.on_activate()
venv/lib/python3.10/site-packages/labgrid/driver/serialdriver.py:51: in on_activate
    self.open()
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = SerialDriver(target=Target(name='main', env=Environment(config_file='./remote.yaml')), name=None, state=<BindingState.bound: 1>, txdelay=0.0, timeout=3.0)

    def open(self):
        """Opens the serialport, does nothing if it is already open"""
        if not self.status:
            try:
                self.serial.open()
            except serial.SerialException as e:
>               raise serial.SerialException(
                    f"Could not open serial port {self.serial.port}: {str(e)}") from e
E               serial.serialutil.SerialException: Could not open serial port rfc2217://teuservbox:41171?ign_set_control&timeout=3.0: Could not open port rfc2217://teuservbox:41171?ign_set_control&timeout=3.0: [Errno -2] Name or service not known

venv/lib/python3.10/site-packages/labgrid/driver/serialdriver.py:104: SerialException
=========================== short test summary info ============================
FAILED test_shell.py::test_target - serial.serialutil.SerialException: Could not open serial port rfc2217://teu...
============================== 1 failed in 0.75s ===============================

my remote.yaml file:

targets:
  main:
    resources:
      RemotePlace:
        name: example-place
    drivers:
      SerialDriver: {}
      ShellDriver:
        prompt: 'root@\w+:[^ ]+ '
        login_prompt: ' login: '
        username: 'root'

and test_shell.py:

def test_target(target):
    barebox = target.get_driver("CommandProtocol")
    target.activate(barebox)

    stdout, stderr, returncode = barebox.run("version")
    assert returncode == 0
    assert stdout
    assert not stderr
    assert "barebox" in "\n".join(stdout)

    stdout, stderr, returncode = barebox.run("false")
    assert returncode == 1
    assert not stdout
    assert not stderr

I am using the Labgrid 24.1.dev123 release.

On one machine I have both coordinator and exporter running.

The exporter configuration:

example-group:
  location: example-location
  USBSerialPort:
    match:
      ID_SERIAL_SHORT: '002124'
      ID_USB_INTERFACE_NUM: '00'
    port: /dev/ttyUSB0
    speed: 1843200

I am able to access my hardware's terminal from my machine using the command:
labgrid-client -P username@IP_ADDR -p example-place acquire

and then using:
labgrid-client -P username@IP_ADDR -p example-place console

I think my test_shell.py file is incorrect or there is some change to be made to the remote.yaml file. Can someone help me on fixing this issue.