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81 lines
2.5 KiB
81 lines
2.5 KiB
import binascii
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import pytest
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import random
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from unittest.mock import patch
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from panda import Panda
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from panda.python.spi import PandaProtocolMismatch, PandaSpiNackResponse
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class TestSpi:
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def _ping(self, mocker, panda):
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# should work with no retries
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spy = mocker.spy(panda._handle, '_wait_for_ack')
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panda.health()
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assert spy.call_count == 2
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mocker.stop(spy)
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def test_protocol_version_check(self, p):
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for bootstub in (False, True):
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p.reset(enter_bootstub=bootstub)
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with patch('panda.python.spi.PandaSpiHandle.PROTOCOL_VERSION', return_value="abc"):
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# list should still work with wrong version
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assert p._serial in Panda.list()
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# connect but raise protocol error
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with pytest.raises(PandaProtocolMismatch):
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Panda(p._serial)
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def test_protocol_version_data(self, p):
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for bootstub in (False, True):
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p.reset(enter_bootstub=bootstub)
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v = p._handle.get_protocol_version()
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uid = binascii.hexlify(v[:12]).decode()
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assert uid == p.get_uid()
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hwtype = v[12]
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assert hwtype == ord(p.get_type())
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bstub = v[13]
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assert bstub == (0xEE if bootstub else 0xCC)
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def test_all_comm_types(self, mocker, p):
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spy = mocker.spy(p._handle, '_wait_for_ack')
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# controlRead + controlWrite
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p.health()
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p.can_clear(0)
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assert spy.call_count == 2*2
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# bulkRead + bulkWrite
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p.can_recv()
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p.can_send(0x123, b"somedata", 0)
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assert spy.call_count == 2*4
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def test_bad_header(self, mocker, p):
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with patch('panda.python.spi.SYNC', return_value=0):
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with pytest.raises(PandaSpiNackResponse):
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p._handle.controlRead(Panda.REQUEST_IN, 0xd2, 0, 0, p.HEALTH_STRUCT.size, timeout=50)
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self._ping(mocker, p)
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def test_bad_checksum(self, mocker, p):
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cnt = p.health()['spi_error_count']
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with patch('panda.python.spi.PandaSpiHandle._calc_checksum', return_value=0):
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with pytest.raises(PandaSpiNackResponse):
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p._handle.controlRead(Panda.REQUEST_IN, 0xd2, 0, 0, p.HEALTH_STRUCT.size, timeout=50)
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self._ping(mocker, p)
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assert (p.health()['spi_error_count'] - cnt) > 0
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def test_non_existent_endpoint(self, mocker, p):
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for _ in range(10):
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ep = random.randint(4, 20)
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with pytest.raises(PandaSpiNackResponse):
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p._handle.bulkRead(ep, random.randint(1, 1000), timeout=50)
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self._ping(mocker, p)
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with pytest.raises(PandaSpiNackResponse):
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p._handle.bulkWrite(ep, b"abc", timeout=50)
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self._ping(mocker, p)
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