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#!/usr/bin/env python

# coding: utf-8

"""

Tests for CANtact interfaces

"""

import time

import logging

import unittest

from unittest.mock import Mock, patch

import pytest

import can

from can.interfaces import cantact

class CantactTest(unittest.TestCase):

def test_bus_creation(self):

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

self.assertIsInstance(bus, cantact.CantactBus)

cantact.MockInterface.set_bitrate.assert_called()

cantact.MockInterface.set_bit_timing.assert_not_called()

cantact.MockInterface.set_enabled.assert_called()

cantact.MockInterface.set_monitor.assert_called()

cantact.MockInterface.start.assert_called()

def test_bus_creation_bittiming(self):

cantact.MockInterface.set_bitrate.reset_mock()

bt = can.BitTiming(tseg1=13, tseg2=2, brp=6, sjw=1)

bus = can.Bus(channel=0, bustype="cantact", bit_timing=bt, _testing=True)

self.assertIsInstance(bus, cantact.CantactBus)

cantact.MockInterface.set_bitrate.assert_not_called()

cantact.MockInterface.set_bit_timing.assert_called()

cantact.MockInterface.set_enabled.assert_called()

cantact.MockInterface.set_monitor.assert_called()

cantact.MockInterface.start.assert_called()

def test_transmit(self):

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

msg = can.Message(

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

)

bus.send(msg)

cantact.MockInterface.send.assert_called()

def test_recv(self):

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

frame = bus.recv(timeout=0.5)

cantact.MockInterface.recv.assert_called()

self.assertIsInstance(frame, can.Message)

def test_recv_timeout(self):

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

frame = bus.recv(timeout=0.0)

cantact.MockInterface.recv.assert_called()

self.assertIsNone(frame)

def test_shutdown(self):

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

bus.shutdown()

cantact.MockInterface.stop.assert_called()