def test_listener_deinit(can=builtin_bus_factory):
with can() as b:
extended_matches = [
Match(0x1FFFCAFE, mask=0xFFFF, extended=True),
Match(0x0BEEF000, mask=0x1FFFF000, extended=True),
]
standard_matches = [
Match(0x400, mask=0x7F0), # should allow 0x40*
Match(0x70A, mask=0x70F), # should allow 0x7*A
]
with b.listen(extended_matches, timeout=0.1) as l:
# mask matching
mo = Message(id=0x0BEEF000, extended=True, data=b"")
b.send(mo)
mi = l.receive()
assert mi
# non-matching
mo = Message(id=0x1FFFFAFF, extended=True, data=b"")
b.send(mo)
mi = l.receive()
assert not mi
with b.listen(standard_matches, timeout=0.1) as l:
# non-matching
mo = RemoteTransmissionRequest(id=0x418, length=0)
b.send(mo)
mi = l.receive()
assert not mi, "ID 0x418 not blocked by masked filter"
# masked matching
mo = RemoteTransmissionRequest(id=0x7FA, length=0)
b.send(mo)
mi = l.receive()
assert mi, "ID 0x7FA blocked by masked filter"
def test_mcp_standard_id_masked_filters(can=builtin_bus_factory):
print("Test MCP Standard ID masked filters")
standard_matches = [
Match(0x400, mask=0x7F0), # should allow 0x40*
Match(0x70A, mask=0x70F), # should allow 0x7*A
]
with can() as b, b.listen(standard_matches, timeout=0.1) as l:
# masked matching
mo = RemoteTransmissionRequest(id=0x408, length=0)
b.send(mo)
mi = l.receive()
assert mi, "ID 0x408 not blocked by masked filter"
# # non-matching
mo = RemoteTransmissionRequest(id=0x418, length=0)
b.send(mo)
mi = l.receive()
assert not mi, "ID 0x418 not blocked by masked filter"
# masked matching
mo = RemoteTransmissionRequest(id=0x7FA, length=0)
b.send(mo)
mi = l.receive()
assert mi, "ID 0x7FA blocked by masked filter"
# non-matching
mo = RemoteTransmissionRequest(id=0x7FB, length=0)
b.send(mo)
mi = l.receive()
assert not mi, "ID 0x7FB not blocked by masked filter"
def test_mcp_standard_id_exact_filters(can=builtin_bus_factory):
print("Test MCP Standard ID filters")
standard_matches = [
Match(0x408),
Match(max_standard_id),
]
with can() as b, b.listen(standard_matches, timeout=0.1) as l:
# exact ID matching
mo = RemoteTransmissionRequest(id=0x408, length=0)
b.send(mo)
mi = l.receive()
assert mi
# # mask matching
mo = RemoteTransmissionRequest(id=max_standard_id, length=0)
b.send(mo)
mi = l.receive()
assert mi
# non-matching
mo = RemoteTransmissionRequest(id=0x409, length=0)
b.send(mo)
mi = l.receive()
assert not mi, "ID 0x409 not blocked by filters & masks"
# non-matching
mo = RemoteTransmissionRequest(id=(max_standard_id - 1), length=0)
b.send(mo)
mi = l.receive()
assert not mi, "ID %x not blocked by filters & masks" % (max_standard_id - 1)
def test_filters2(can=builtin_bus_factory):
matches = [
Match(0x408),
Match(0x700, mask=0x7F0),
Match(0x4081975, extended=True),
Match(0x888800, mask=0xFFFFF0, extended=True),
]
print("Test filters 2")
with can() as b, b.listen(matches[0:2], timeout=0.1) as l1, b.listen(
matches[2:4], timeout=0.1
) as l2:
# exact ID matching
mo = RemoteTransmissionRequest(id=0x408, length=0)
b.send(mo)
mi1 = l1.receive()
mi2 = l2.receive()
assert mi1
assert not mi2
# mask matching
mo = RemoteTransmissionRequest(id=0x704, length=0)
b.send(mo)
mi1 = l1.receive()
mi2 = l2.receive()
assert mi1
assert not mi2
# non-matching
mo = RemoteTransmissionRequest(id=0x409, length=0)
b.send(mo)
mi1 = l1.receive()
mi2 = l2.receive()
assert not mi1
assert not mi2
# Extended
# exact ID matching
mo = Message(id=0x4081975, extended=True, data=b"")
b.send(mo)
mi1 = l1.receive()
mi2 = l2.receive()
assert not mi1
assert mi2
# mask matching
mo = Message(id=0x888804, extended=True, data=b"")
b.send(mo)
mi1 = l1.receive()
mi2 = l2.receive()
assert not mi1
assert mi2
# non-matching
mo = Message(id=0x4081985, extended=True, data=b"")
b.send(mo)
mi1 = l1.receive()
mi2 = l2.receive()
assert not mi1
assert not mi2
def test_filters1(can=builtin_bus_factory):
matches = [
Match(0x408),
Match(0x700, mask=0x7F0),
Match(0x4081975, extended=True),
Match(0x888800, mask=0xFFFFF0, extended=True),
]
print("Test filters")
with can() as b, b.listen(matches, timeout=0.1) as l:
# exact ID matching
mo = RemoteTransmissionRequest(id=0x408, length=0)
b.send(mo)
mi = l.receive()
assert mi
# mask matching
mo = RemoteTransmissionRequest(id=0x704, length=0)
b.send(mo)
mi = l.receive()
assert mi
# non-matching
# 0x409 => 0b 0000 0100 0000 1001
mo = RemoteTransmissionRequest(id=0x409, length=0)
b.send(mo)
mi = l.receive()
assert not mi, "ID 0x409 not blocked by filters & masks"
# Extended
# exact ID matching
mo = Message(id=0x4081975, extended=True, data=b"")
b.send(mo)
mi = l.receive()
assert mi
# mask matching
mo = Message(id=0x888804, extended=True, data=b"")
b.send(mo)
mi = l.receive()
assert mi
# non-matching
mo = Message(id=0x4081985, extended=True, data=b"")
b.send(mo)
mi = l.receive()
assert not mi
def test_rtr_constructor():
print("Testing RemoteTransmissionRequest")
assert RemoteTransmissionRequest(id=0, length=0).id == 0
assert RemoteTransmissionRequest(id=1, length=0).id == 1
for i in lengths:
assert RemoteTransmissionRequest(id=0, length=i).length == i
assert not RemoteTransmissionRequest(id=0, length=1).extended
assert not RemoteTransmissionRequest(id=0, extended=False, length=1).extended
assert RemoteTransmissionRequest(id=0, extended=True, length=1).extended
def test_rtr_receive(can=builtin_bus_factory):
with can() as b, b.listen(timeout=0.1) as l:
for length in lengths:
print("Test messages of length", length)
mo = RemoteTransmissionRequest(id=0x5555555, extended=True, length=length)
b.send(mo)
mi = l.receive()
assert mi
assert isinstance(mi, RemoteTransmissionRequest)
assert mi.id == 0x5555555, "Extended ID does not match: 0x{:07X}".format(
mi.id
)
assert mi.extended
assert mi.length == length
mo = RemoteTransmissionRequest(id=max_standard_id, length=length)
b.send(mo)
mi = l.receive()
assert mi
assert isinstance(mi, RemoteTransmissionRequest)
assert (
mi.id == max_standard_id
), "Max standard ID not sent/received properly: %s" % hex(mi.id)
assert mi.length == length
mo = RemoteTransmissionRequest(id=0x555, length=length)
b.send(mo)
mi = l.receive()
assert mi # this fails every other run!
assert isinstance(mi, RemoteTransmissionRequest)
assert mi.id == 0x555
assert mi.length == length
mo = RemoteTransmissionRequest(
id=max_extended_id, extended=True, length=length
)
assert mo.extended
b.send(mo)
mi = l.receive()
assert mi
assert isinstance(mi, RemoteTransmissionRequest)
assert (
mi.id == max_extended_id
), "Max extended ID not sent/received properly"
assert mi.length == length
data = bytes(range(length))
mo = Message(id=0, data=data)
b.send(mo)
mi = l.receive()
assert mi
assert isinstance(mi, Message)
assert mi.data == data
mo = Message(id=max_extended_id, extended=True, data=data)
b.send(mo)
mi = l.receive()
assert mi
assert isinstance(mi, Message)
assert mi.data == data