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#!/usr/bin/env python

# coding: utf-8

"""

Test for Vector Interface

"""

import ctypes

import os

import pickle

import unittest

from unittest.mock import Mock

import pytest

import can

from can.interfaces.vector import canlib, xldefine, xlclass, VectorError

class TestVectorBus(unittest.TestCase):

def setUp(self) -> None:

# basic mock for XLDriver

can.interfaces.vector.canlib.xldriver = Mock()

# bus creation functions

can.interfaces.vector.canlib.xldriver.xlOpenDriver = Mock()

can.interfaces.vector.canlib.xldriver.xlGetApplConfig = Mock(

side_effect=xlGetApplConfig

)

can.interfaces.vector.canlib.xldriver.xlGetChannelIndex = Mock(

side_effect=xlGetChannelIndex

)

can.interfaces.vector.canlib.xldriver.xlOpenPort = Mock(side_effect=xlOpenPort)

can.interfaces.vector.canlib.xldriver.xlCanFdSetConfiguration = Mock(

return_value=0

)

can.interfaces.vector.canlib.xldriver.xlCanSetChannelMode = Mock(return_value=0)

can.interfaces.vector.canlib.xldriver.xlActivateChannel = Mock(return_value=0)

can.interfaces.vector.canlib.xldriver.xlGetSyncTime = Mock(

side_effect=xlGetSyncTime

)

can.interfaces.vector.canlib.xldriver.xlCanSetChannelAcceptance = Mock(

return_value=0

)

can.interfaces.vector.canlib.xldriver.xlCanSetChannelBitrate = Mock(

return_value=0

)

can.interfaces.vector.canlib.xldriver.xlSetNotification = Mock(

side_effect=xlSetNotification

)

# bus deactivation functions

can.interfaces.vector.canlib.xldriver.xlDeactivateChannel = Mock(return_value=0)

can.interfaces.vector.canlib.xldriver.xlClosePort = Mock(return_value=0)

can.interfaces.vector.canlib.xldriver.xlCloseDriver = Mock()

# sender functions

can.interfaces.vector.canlib.xldriver.xlCanTransmit = Mock(return_value=0)

can.interfaces.vector.canlib.xldriver.xlCanTransmitEx = Mock(return_value=0)

# various functions

can.interfaces.vector.canlib.xldriver.xlCanFlushTransmitQueue = Mock()

can.interfaces.vector.canlib.WaitForSingleObject = Mock()

self.bus = None

def tearDown(self) -> None:

if self.bus:

self.bus.shutdown()

self.bus = None

def test_bus_creation(self) -> None:

self.bus = can.Bus(channel=0, bustype="vector", _testing=True)

self.assertIsInstance(self.bus, canlib.VectorBus)

can.interfaces.vector.canlib.xldriver.xlOpenDriver.assert_called()

can.interfaces.vector.canlib.xldriver.xlGetApplConfig.assert_called()

can.interfaces.vector.canlib.xldriver.xlOpenPort.assert_called()

xlOpenPort_args = can.interfaces.vector.canlib.xldriver.xlOpenPort.call_args[0]

self.assertEqual(

xlOpenPort_args[5], xldefine.XL_InterfaceVersion.XL_INTERFACE_VERSION.value

)

self.assertEqual(xlOpenPort_args[6], xldefine.XL_BusTypes.XL_BUS_TYPE_CAN.value)

can.interfaces.vector.canlib.xldriver.xlCanFdSetConfiguration.assert_not_called()

can.interfaces.vector.canlib.xldriver.xlCanSetChannelBitrate.assert_not_called()

def test_bus_creation_bitrate(self) -> None:

self.bus = can.Bus(channel=0, bustype="vector", bitrate=200000, _testing=True)

self.assertIsInstance(self.bus, canlib.VectorBus)

can.interfaces.vector.canlib.xldriver.xlOpenDriver.assert_called()

can.interfaces.vector.canlib.xldriver.xlGetApplConfig.assert_called()

can.interfaces.vector.canlib.xldriver.xlOpenPort.assert_called()

xlOpenPort_args = can.interfaces.vector.canlib.xldriver.xlOpenPort.call_args[0]

self.assertEqual(

xlOpenPort_args[5], xldefine.XL_InterfaceVersion.XL_INTERFACE_VERSION.value

)

self.assertEqual(xlOpenPort_args[6], xldefine.XL_BusTypes.XL_BUS_TYPE_CAN.value)

can.interfaces.vector.canlib.xldriver.xlCanFdSetConfiguration.assert_not_called()

can.interfaces.vector.canlib.xldriver.xlCanSetChannelBitrate.assert_called()

xlCanSetChannelBitrate_args = can.interfaces.vector.canlib.xldriver.xlCanSetChannelBitrate.call_args[

0

]

self.assertEqual(xlCanSetChannelBitrate_args[2], 200000)

def test_bus_creation_fd(self) -> None:

self.bus = can.Bus(channel=0, bustype="vector", fd=True, _testing=True)

self.assertIsInstance(self.bus, canlib.VectorBus)

can.interfaces.vector.canlib.xldriver.xlOpenDriver.assert_called()

can.interfaces.vector.canlib.xldriver.xlGetApplConfig.assert_called()

can.interfaces.vector.canlib.xldriver.xlOpenPort.assert_called()

xlOpenPort_args = can.interfaces.vector.canlib.xldriver.xlOpenPort.call_args[0]

self.assertEqual(

xlOpenPort_args[5],

xldefine.XL_InterfaceVersion.XL_INTERFACE_VERSION_V4.value,

)

self.assertEqual(xlOpenPort_args[6], xldefine.XL_BusTypes.XL_BUS_TYPE_CAN.value)

can.interfaces.vector.canlib.xldriver.xlCanFdSetConfiguration.assert_called()

can.interfaces.vector.canlib.xldriver.xlCanSetChannelBitrate.assert_not_called()

def test_bus_creation_fd_bitrate_timings(self) -> None:

self.bus = can.Bus(

channel=0,

bustype="vector",

fd=True,

bitrate=500000,

data_bitrate=2000000,

sjw_abr=10,

tseg1_abr=11,

tseg2_abr=12,

sjw_dbr=13,

tseg1_dbr=14,

tseg2_dbr=15,

_testing=True,

)

self.assertIsInstance(self.bus, canlib.VectorBus)

can.interfaces.vector.canlib.xldriver.xlOpenDriver.assert_called()

can.interfaces.vector.canlib.xldriver.xlGetApplConfig.assert_called()

can.interfaces.vector.canlib.xldriver.xlOpenPort.assert_called()

xlOpenPort_args = can.interfaces.vector.canlib.xldriver.xlOpenPort.call_args[0]

self.assertEqual(

xlOpenPort_args[5],

xldefine.XL_InterfaceVersion.XL_INTERFACE_VERSION_V4.value,

)

self.assertEqual(xlOpenPort_args[6], xldefine.XL_BusTypes.XL_BUS_TYPE_CAN.value)

can.interfaces.vector.canlib.xldriver.xlCanFdSetConfiguration.assert_called()

can.interfaces.vector.canlib.xldriver.xlCanSetChannelBitrate.assert_not_called()

xlCanFdSetConfiguration_args = can.interfaces.vector.canlib.xldriver.xlCanFdSetConfiguration.call_args[

0

]

canFdConf = xlCanFdSetConfiguration_args[2]

self.assertEqual(canFdConf.arbitrationBitRate, 500000)

self.assertEqual(canFdConf.dataBitRate, 2000000)

self.assertEqual(canFdConf.sjwAbr, 10)

self.assertEqual(canFdConf.tseg1Abr, 11)

self.assertEqual(canFdConf.tseg2Abr, 12)

self.assertEqual(canFdConf.sjwDbr, 13)

self.assertEqual(canFdConf.tseg1Dbr, 14)

self.assertEqual(canFdConf.tseg2Dbr, 15)

def test_receive(self) -> None:

can.interfaces.vector.canlib.xldriver.xlReceive = Mock(side_effect=xlReceive)

self.bus = can.Bus(channel=0, bustype="vector", _testing=True)

self.bus.recv(timeout=0.05)

can.interfaces.vector.canlib.xldriver.xlReceive.assert_called()

can.interfaces.vector.canlib.xldriver.xlCanReceive.assert_not_called()

def test_receive_fd(self) -> None:

can.interfaces.vector.canlib.xldriver.xlCanReceive = Mock(

side_effect=xlCanReceive

)

self.bus = can.Bus(channel=0, bustype="vector", fd=True, _testing=True)

self.bus.recv(timeout=0.05)

can.interfaces.vector.canlib.xldriver.xlReceive.assert_not_called()

can.interfaces.vector.canlib.xldriver.xlCanReceive.assert_called()

def test_receive_non_msg_event(self) -> None:

can.interfaces.vector.canlib.xldriver.xlReceive = Mock(

side_effect=xlReceive_chipstate

)

self.bus = can.Bus(channel=0, bustype="vector", _testing=True)

self.bus.handle_can_event = Mock()

self.bus.recv(timeout=0.05)

can.interfaces.vector.canlib.xldriver.xlReceive.assert_called()

can.interfaces.vector.canlib.xldriver.xlCanReceive.assert_not_called()

self.bus.handle_can_event.assert_called()

def test_receive_fd_non_msg_event(self) -> None:

can.interfaces.vector.canlib.xldriver.xlCanReceive = Mock(

side_effect=xlCanReceive_chipstate

)

self.bus = can.Bus(channel=0, bustype="vector", fd=True, _testing=True)

self.bus.handle_canfd_event = Mock()

self.bus.recv(timeout=0.05)

can.interfaces.vector.canlib.xldriver.xlReceive.assert_not_called()

can.interfaces.vector.canlib.xldriver.xlCanReceive.assert_called()

self.bus.handle_canfd_event.assert_called()

def test_send(self) -> None:

self.bus = can.Bus(channel=0, bustype="vector", _testing=True)

msg = can.Message(

arbitration_id=0xC0FFEF, data=[1, 2, 3, 4, 5, 6, 7, 8], is_extended_id=True

)

self.bus.send(msg)

can.interfaces.vector.canlib.xldriver.xlCanTransmit.assert_called()

can.interfaces.vector.canlib.xldriver.xlCanTransmitEx.assert_not_called()

def test_send_fd(self) -> None:

self.bus = can.Bus(channel=0, bustype="vector", fd=True, _testing=True)

msg = can.Message(

arbitration_id=0xC0FFEF, data=[1, 2, 3, 4, 5, 6, 7, 8], is_extended_id=True

)

self.bus.send(msg)

can.interfaces.vector.canlib.xldriver.xlCanTransmit.assert_not_called()

can.interfaces.vector.canlib.xldriver.xlCanTransmitEx.assert_called()

def test_flush_tx_buffer(self) -> None:

self.bus = can.Bus(channel=0, bustype="vector", _testing=True)

self.bus.flush_tx_buffer()

can.interfaces.vector.canlib.xldriver.xlCanFlushTransmitQueue.assert_called()

def test_shutdown(self) -> None:

self.bus = can.Bus(channel=0, bustype="vector", _testing=True)

self.bus.shutdown()

can.interfaces.vector.canlib.xldriver.xlDeactivateChannel.assert_called()

can.interfaces.vector.canlib.xldriver.xlClosePort.assert_called()

can.interfaces.vector.canlib.xldriver.xlCloseDriver.assert_called()

def test_reset(self) -> None:

self.bus = can.Bus(channel=0, bustype="vector", _testing=True)

self.bus.reset()

can.interfaces.vector.canlib.xldriver.xlDeactivateChannel.assert_called()

can.interfaces.vector.canlib.xldriver.xlActivateChannel.assert_called()

def test_popup_hw_cfg(self) -> None:

canlib.xldriver.xlPopupHwConfig = Mock()

canlib.VectorBus.popup_vector_hw_configuration(10)

assert canlib.xldriver.xlPopupHwConfig.called

args, kwargs = canlib.xldriver.xlPopupHwConfig.call_args

assert isinstance(args[0], ctypes.c_char_p)

assert isinstance(args[1], ctypes.c_uint)

def test_get_application_config(self) -> None:

canlib.xldriver.xlGetApplConfig = Mock()

canlib.VectorBus.get_application_config(app_name="CANalyzer", app_channel=0)

assert canlib.xldriver.xlGetApplConfig.called

def test_set_application_config(self) -> None:

canlib.xldriver.xlSetApplConfig = Mock()

canlib.VectorBus.set_application_config(

app_name="CANalyzer",

app_channel=0,

hw_type=xldefine.XL_HardwareType.XL_HWTYPE_VN1610,

hw_index=0,

hw_channel=0,

)

assert canlib.xldriver.xlSetApplConfig.called

def test_set_timer_rate(self) -> None:

canlib.xldriver.xlSetTimerRate = Mock()

bus: canlib.VectorBus = can.Bus(

channel=0, bustype="vector", fd=True, _testing=True

)

bus.set_timer_rate(timer_rate_ms=1)

assert canlib.xldriver.xlSetTimerRate.called

def test_called_without_testing_argument(self) -> None:

"""This tests if an exception is thrown when we are not running on Windows."""

if os.name != "nt":

with self.assertRaises(OSError):

# do not set the _testing argument, since it supresses the exception

can.Bus(channel=0, bustype="vector")

def test_vector_error_pickle(self) -> None:

error_code = 118

error_string = "XL_ERROR"

function = "function_name"

exc = VectorError(error_code, error_string, function)

# pickle and unpickle

p = pickle.dumps(exc)

exc_unpickled: VectorError = pickle.loads(p)

self.assertEqual(str(exc), str(exc_unpickled))

self.assertEqual(error_code, exc_unpickled.error_code)

with pytest.raises(VectorError):

raise exc_unpickled

def xlGetApplConfig(

app_name_p: ctypes.c_char_p,

app_channel: ctypes.c_uint,

hw_type: ctypes.POINTER(ctypes.c_uint),

hw_index: ctypes.POINTER(ctypes.c_uint),

hw_channel: ctypes.POINTER(ctypes.c_uint),

bus_type: ctypes.c_uint,

) -> int:

hw_type.value = 1

hw_channel.value = app_channel

return 0

def xlGetChannelIndex(

hw_type: ctypes.c_int, hw_index: ctypes.c_int, hw_channel: ctypes.c_int

) -> int:

return hw_channel

def xlOpenPort(

port_handle_p: ctypes.POINTER(xlclass.XLportHandle),

app_name_p: ctypes.c_char_p,

access_mask: xlclass.XLaccess,

permission_mask_p: ctypes.POINTER(xlclass.XLaccess),

rx_queue_size: ctypes.c_uint,

xl_interface_version: ctypes.c_uint,

bus_type: ctypes.c_uint,

) -> int:

port_handle_p.value = 0

return 0

def xlGetSyncTime(

port_handle: xlclass.XLportHandle, time_p: ctypes.POINTER(xlclass.XLuint64)

) -> int:

time_p.value = 544219859027581

return 0

def xlSetNotification(

port_handle: xlclass.XLportHandle,

event_handle: ctypes.POINTER(xlclass.XLhandle),

queue_level: ctypes.c_int,

) -> int:

event_handle.value = 520

return 0

def xlReceive(

port_handle: xlclass.XLportHandle,

event_count_p: ctypes.POINTER(ctypes.c_uint),

event: ctypes.POINTER(xlclass.XLevent),

) -> int:

event.tag = xldefine.XL_EventTags.XL_RECEIVE_MSG.value

event.tagData.msg.id = 0x123

event.tagData.msg.dlc = 8

event.tagData.msg.flags = 0

event.timeStamp = 0

event.chanIndex = 0

for idx, value in enumerate([1, 2, 3, 4, 5, 6, 7, 8]):

event.tagData.msg.data[idx] = value

return 0

def xlCanReceive(

port_handle: xlclass.XLportHandle, event: ctypes.POINTER(xlclass.XLcanRxEvent)

) -> int:

event.tag = xldefine.XL_CANFD_RX_EventTags.XL_CAN_EV_TAG_RX_OK.value

event.tagData.canRxOkMsg.canId = 0x123

event.tagData.canRxOkMsg.dlc = 8

event.tagData.canRxOkMsg.msgFlags = 0

event.timeStamp = 0

event.chanIndex = 0

for idx, value in enumerate([1, 2, 3, 4, 5, 6, 7, 8]):

event.tagData.canRxOkMsg.data[idx] = value

return 0

def xlReceive_chipstate(

port_handle: xlclass.XLportHandle,

event_count_p: ctypes.POINTER(ctypes.c_uint),

event: ctypes.POINTER(xlclass.XLevent),

) -> int:

event.tag = xldefine.XL_EventTags.XL_CHIP_STATE.value

event.tagData.chipState.busStatus = 8

event.tagData.chipState.rxErrorCounter = 0

event.tagData.chipState.txErrorCounter = 0

event.timeStamp = 0

event.chanIndex = 2

return 0

def xlCanReceive_chipstate(

port_handle: xlclass.XLportHandle, event: ctypes.POINTER(xlclass.XLcanRxEvent)

) -> int:

event.tag = xldefine.XL_CANFD_RX_EventTags.XL_CAN_EV_TAG_CHIP_STATE.value

event.tagData.canChipState.busStatus = 8

event.tagData.canChipState.rxErrorCounter = 0

event.tagData.canChipState.txErrorCounter = 0

event.timeStamp = 0

event.chanIndex = 2

return 0

if __name__ == "__main__":

unittest.main()