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43 lines
1.2 KiB
43 lines
1.2 KiB
1 year ago
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#!/usr/bin/env python3
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import unittest
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from opendbc.can.parser import CANParser
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from opendbc.can.packer import CANPacker
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from opendbc.can.tests.test_packer_parser import can_list_to_can_capnp
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class TestCanChecksums(unittest.TestCase):
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def test_honda_checksum(self):
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"""Test checksums for Honda standard and extended CAN ids"""
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dbc_file = "honda_accord_2018_can_generated"
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msgs = [("LKAS_HUD", 0), ("LKAS_HUD_A", 0)]
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parser = CANParser(dbc_file, msgs, 0)
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packer = CANPacker(dbc_file)
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values = {
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'SET_ME_X41': 0x41,
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'STEERING_REQUIRED': 1,
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'SOLID_LANES': 1,
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'BEEP': 0,
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}
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# known correct checksums according to the above values
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checksum_std = [11, 10, 9, 8]
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checksum_ext = [4, 3, 2, 1]
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for std, ext in zip(checksum_std, checksum_ext):
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msgs = [
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packer.make_can_msg("LKAS_HUD", 0, values),
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packer.make_can_msg("LKAS_HUD_A", 0, values),
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]
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can_strings = [can_list_to_can_capnp(msgs), ]
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parser.update_strings(can_strings)
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self.assertEqual(parser.vl['LKAS_HUD']['CHECKSUM'], std)
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self.assertEqual(parser.vl['LKAS_HUD_A']['CHECKSUM'], ext)
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if __name__ == "__main__":
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unittest.main()
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