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#!/usr/bin/env python
# coding: utf-8
"""
"""
from time import sleep
import unittest
import logging
import can
logging.getLogger(__file__).setLevel(logging.DEBUG)
class ZeroDLCTest(unittest.TestCase):
def test_recv_non_zero_dlc(self):
bus_send = can.interface.Bus(bustype='virtual')
bus_recv = can.interface.Bus(bustype='virtual')
data = [0, 1, 2, 3, 4, 5, 6, 7]
msg_send = can.Message(extended_id=False, arbitration_id=0x100, data=data)
bus_send.send(msg_send)
msg_recv = bus_recv.recv()
# Receiving a frame with data should evaluate msg_recv to True
self.assertTrue(msg_recv)
def test_recv_none(self):
bus_recv = can.interface.Bus(bustype='virtual')
msg_recv = bus_recv.recv(timeout=0)
# Receiving nothing should evaluate msg_recv to False
self.assertFalse(msg_recv)
def test_recv_zero_dlc(self):
bus_send = can.interface.Bus(bustype='virtual')
bus_recv = can.interface.Bus(bustype='virtual')
msg_send = can.Message(extended_id=False, arbitration_id=0x100, data=[])
bus_send.send(msg_send)
msg_recv = bus_recv.recv()
# Receiving a frame without data (dlc == 0) should evaluate msg_recv to True
self.assertTrue(msg_recv)
if __name__ == '__main__':
unittest.main()
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