def test_invalid_command_type_raises_value_error(self):
with pytest.raises(ValueError):
cm = messages.CommandMessage(
command="R",
command_type="12",
data_set=messages.DataSet(address="1.8.0", value="1"),
)
def test_to_representation_without_data_set(self):
# like the break command
break_msg = messages.CommandMessage(
command="B", command_type="0", data_set=None
)
assert break_msg.to_representation() == "\x01B0\x03q"
def test_command_message_to_representation(self):
cm = messages.CommandMessage(
command="R",
command_type="1",
data_set=messages.DataSet(address="1.8.0", value="1"),
)
assert cm.to_representation() == "\x01R1\x021.8.0(1)\x03k"
def send_break(self):
"""
Sending the break message to indicate that one wants to stop the
communication.
"""
logger.info("Sending BREAK message to end communication")
break_msg = messages.CommandMessage(command="B",
command_type="0",
data_set=None)
self.transport.send(break_msg.to_bytes())
def send_password(self, password=None):
"""
On receiving the password challenge request one must handle the password
challenge according to device specification and then send the password.
:param password:
"""
_pw = password or self.password
data_set = messages.DataSet(value=_pw)
cmd = messages.CommandMessage(command="P", command_type="1", data_set=data_set)
logger.info("Sending password to meter")
self.transport.send(cmd.to_bytes())
def _send_profile_request(self, start_date: date, end_date: date):
"""
Send profile request between dates
"""
# Set format for Luna
if self.manufacturer_id == "LUN":
start_date_ = f"{start_date.year % 100}{start_date.month:02d}{start_date.day:02d}"
end_date_ = f"{end_date.year % 100}{end_date.month:02d}{end_date.day:02d}"
elif self.manufacturer_id == "MSY": # Set format for makel
start_date_ = f"{start_date.year % 100}{start_date.month:02d}{start_date.day:02d}0000"
end_date_ = f"{end_date.year % 100}{end_date.month:02d}{end_date.day:02d}0000"
command = "R"
command_type = "5" if self.manufacturer_id == "LUN" else "2"
address = "P1" if self.manufacturer_id == "LUN" else "P.01"
end = "" if self.manufacturer_id == "LUN" else None
cmd = messages.CommandMessage(command=command, command_type=command_type,
data_set=messages.DataSet(value=f"{start_date_};{end_date_}", address=address, end=end))
logger.info(f"Sending profile request to meter. {cmd.to_bytes()}")
self.transport.send(cmd.to_bytes())
