def test_value_dict(self):
sig = CANSignal('Signal', 0, 8)
sig.value_dict = {0: 'Value0'}
sig.raw_value = 0
assert sig.value == sig.value_dict[sig.raw_value]
sig.raw_value = 1
assert sig.value == sig.raw_value
def test_raw_value_setter_signing_exception(self):
sig = CANSignal('Signal', 0, 8)
sig.signed = False
sig.raw_value = 0
sig.raw_value = 10
with pytest.raises(AttributeError):
sig.raw_value = -1
sig.signed = True
sig.raw_value = -1
def test_int_two_signals(self):
msg = CANMessage(1, 'Name', 2)
sig0 = CANSignal('Signal0', 0, 8)
sig0.raw_value = 159
msg.add_signal(sig0)
sig1 = CANSignal('Signal1', 8, 8)
sig1.raw_value = 96
msg.add_signal(sig1)
assert int(msg) == int(sig0.bits) + (int(sig1.bits) << 8)
def test_raw_value_setter_exceed_length(self):
sig = CANSignal('Signal', 0, 3)
sig.raw_value = 7
assert sig.raw_value == 7
with pytest.raises(AttributeError):
sig.raw_value = 8
sig.signed = True
sig.raw_value = 3
assert sig.raw_value == 3
sig.raw_value = -3
assert sig.raw_value == -3
with pytest.raises(AttributeError):
sig.raw_value = 4
assert sig.raw_value == -3
with pytest.raises(AttributeError):
sig.raw_value = -4
assert sig.raw_value == -3
def test_value_getter(self):
sig = CANSignal('Signal', 0, 8)
sig.factor = 2.5
sig.offset = 1.25
sig.raw_value = 2
assert sig.value == sig.raw_value * 2.5 + 1.25
def test_raw_value_setter_only_int(self):
sig = CANSignal('Signal', 0, 3)
with pytest.raises(AttributeError):
sig.raw_value = None
with pytest.raises(AttributeError):
sig.raw_value = 'a'
def test_int_splitted(self):
msg = CANMessage(1, 'Name', 2)
sig = CANSignal('Signal', 4, 8)
sig.raw_value = 100
msg.add_signal(sig)
assert int(msg) == int(sig.bits) << 4
def test_int(self):
msg = CANMessage(1, 'Name', 1)
sig = CANSignal('Signal', 0, 8)
sig.raw_value = 100
msg.add_signal(sig)
assert int(msg) == 100
