Raw source file available here .
import unittest
from decimal import Decimal
from dsmr_parser.exceptions import InvalidChecksumError, ParseError
from dsmr_parser.objects import CosemObject
from dsmr_parser.parsers import TelegramParser
from dsmr_parser import telegram_specifications
from dsmr_parser import obis_references as obis
from test.example_telegrams import TELEGRAM_ISKRA_IE
class TelegramParserIskraIETest(unittest.TestCase):
""" Test parsing of a Iskra IE5 telegram. """
def test_parse(self):
parser = TelegramParser(telegram_specifications.ISKRA_IE)
try:
result = parser.parse(TELEGRAM_ISKRA_IE, throw_ex=True)
except Exception as ex:
assert False, f"parse trigged an exception {ex}"
# EQUIPMENT_IDENTIFIER_GAS (0-0:96.1.0)
assert isinstance(result[obis.EQUIPMENT_IDENTIFIER_GAS], CosemObject)
assert result[obis.EQUIPMENT_IDENTIFIER_GAS].unit is None
assert isinstance(result[obis.EQUIPMENT_IDENTIFIER_GAS].value, str)
assert result[obis.EQUIPMENT_IDENTIFIER_GAS].value == '09610'
# ELECTRICITY_USED_TARIFF_1 (1-0:1.8.1)
assert isinstance(result[obis.ELECTRICITY_USED_TARIFF_1], CosemObject)
assert result[obis.ELECTRICITY_USED_TARIFF_1].unit == 'kWh'
assert isinstance(result[obis.ELECTRICITY_USED_TARIFF_1].value, Decimal)
assert result[obis.ELECTRICITY_USED_TARIFF_1].value == Decimal('10.181')
# ELECTRICITY_USED_TARIFF_2 (1-0:1.8.2)
assert isinstance(result[obis.ELECTRICITY_USED_TARIFF_2], CosemObject)
assert result[obis.ELECTRICITY_USED_TARIFF_2].unit == 'kWh'
assert isinstance(result[obis.ELECTRICITY_USED_TARIFF_2].value, Decimal)
assert result[obis.ELECTRICITY_USED_TARIFF_2].value == Decimal('10.182')
# ELECTRICITY_DELIVERED_TARIFF_1 (1-0:2.8.1)
assert isinstance(result[obis.ELECTRICITY_DELIVERED_TARIFF_1], CosemObject)
assert result[obis.ELECTRICITY_DELIVERED_TARIFF_1].unit == 'kWh'
assert isinstance(result[obis.ELECTRICITY_DELIVERED_TARIFF_1].value, Decimal)
assert result[obis.ELECTRICITY_DELIVERED_TARIFF_1].value == Decimal('10.281')
# ELECTRICITY_DELIVERED_TARIFF_2 (1-0:2.8.2)
assert isinstance(result[obis.ELECTRICITY_DELIVERED_TARIFF_2], CosemObject)
assert result[obis.ELECTRICITY_DELIVERED_TARIFF_2].unit == 'kWh'
assert isinstance(result[obis.ELECTRICITY_DELIVERED_TARIFF_2].value, Decimal)
assert result[obis.ELECTRICITY_DELIVERED_TARIFF_2].value == Decimal('10.282')
# ELECTRICITY_ACTIVE_TARIFF (0-0:96.14.0)
assert isinstance(result[obis.ELECTRICITY_ACTIVE_TARIFF], CosemObject)
assert result[obis.ELECTRICITY_ACTIVE_TARIFF].unit is None
assert isinstance(result[obis.ELECTRICITY_ACTIVE_TARIFF].value, str)
assert result[obis.ELECTRICITY_ACTIVE_TARIFF].value == '0001'
# CURRENT_ELECTRICITY_USAGE (1-0:1.7.0)
assert isinstance(result[obis.CURRENT_ELECTRICITY_USAGE], CosemObject)
assert result[obis.CURRENT_ELECTRICITY_USAGE].unit == 'kW'
assert isinstance(result[obis.CURRENT_ELECTRICITY_USAGE].value, Decimal)
assert result[obis.CURRENT_ELECTRICITY_USAGE].value == Decimal('0.170')
# CURRENT_ELECTRICITY_DELIVERY (1-0:2.7.0)
assert isinstance(result[obis.CURRENT_ELECTRICITY_DELIVERY], CosemObject)
assert result[obis.CURRENT_ELECTRICITY_DELIVERY].unit == 'kW'
assert isinstance(result[obis.CURRENT_ELECTRICITY_DELIVERY].value, Decimal)
assert result[obis.CURRENT_ELECTRICITY_DELIVERY].value == Decimal('0.270')
# INSTANTANEOUS_ACTIVE_POWER_L1_POSITIVE (1-0:21.7.0)
assert isinstance(result[obis.INSTANTANEOUS_ACTIVE_POWER_L1_POSITIVE], CosemObject)
assert result[obis.INSTANTANEOUS_ACTIVE_POWER_L1_POSITIVE].unit == 'kW'
assert isinstance(result[obis.INSTANTANEOUS_ACTIVE_POWER_L1_POSITIVE].value, Decimal)
assert result[obis.INSTANTANEOUS_ACTIVE_POWER_L1_POSITIVE].value == Decimal('0.217')
# INSTANTANEOUS_ACTIVE_POWER_L2_POSITIVE (1-0:41.7.0)
assert isinstance(result[obis.INSTANTANEOUS_ACTIVE_POWER_L2_POSITIVE], CosemObject)
assert result[obis.INSTANTANEOUS_ACTIVE_POWER_L2_POSITIVE].unit == 'kW'
assert isinstance(result[obis.INSTANTANEOUS_ACTIVE_POWER_L2_POSITIVE].value, Decimal)
assert result[obis.INSTANTANEOUS_ACTIVE_POWER_L2_POSITIVE].value == Decimal('0.417')
# INSTANTANEOUS_ACTIVE_POWER_L3_POSITIVE (1-0:61.7.0)
assert isinstance(result[obis.INSTANTANEOUS_ACTIVE_POWER_L3_POSITIVE], CosemObject)
assert result[obis.INSTANTANEOUS_ACTIVE_POWER_L3_POSITIVE].unit == 'kW'
assert isinstance(result[obis.INSTANTANEOUS_ACTIVE_POWER_L3_POSITIVE].value, Decimal)
assert result[obis.INSTANTANEOUS_ACTIVE_POWER_L3_POSITIVE].value == Decimal('0.617')
# INSTANTANEOUS_ACTIVE_POWER_L1_NEGATIVE (1-0:22.7.0)
assert isinstance(result[obis.INSTANTANEOUS_ACTIVE_POWER_L1_NEGATIVE], CosemObject)
assert result[obis.INSTANTANEOUS_ACTIVE_POWER_L1_NEGATIVE].unit == 'kW'
assert isinstance(result[obis.INSTANTANEOUS_ACTIVE_POWER_L1_NEGATIVE].value, Decimal)
assert result[obis.INSTANTANEOUS_ACTIVE_POWER_L1_NEGATIVE].value == Decimal('0.227')
# INSTANTANEOUS_ACTIVE_POWER_L2_NEGATIVE (1-0:42.7.0)
assert isinstance(result[obis.INSTANTANEOUS_ACTIVE_POWER_L2_NEGATIVE], CosemObject)
assert result[obis.INSTANTANEOUS_ACTIVE_POWER_L2_NEGATIVE].unit == 'kW'
assert isinstance(result[obis.INSTANTANEOUS_ACTIVE_POWER_L2_NEGATIVE].value, Decimal)
assert result[obis.INSTANTANEOUS_ACTIVE_POWER_L2_NEGATIVE].value == Decimal('0.427')
# INSTANTANEOUS_ACTIVE_POWER_L3_NEGATIVE (1-0:62.7.0)
assert isinstance(result[obis.INSTANTANEOUS_ACTIVE_POWER_L3_NEGATIVE], CosemObject)
assert result[obis.INSTANTANEOUS_ACTIVE_POWER_L3_NEGATIVE].unit == 'kW'
assert isinstance(result[obis.INSTANTANEOUS_ACTIVE_POWER_L3_NEGATIVE].value, Decimal)
assert result[obis.INSTANTANEOUS_ACTIVE_POWER_L3_NEGATIVE].value == Decimal('0.627')
# INSTANTANEOUS_VOLTAGE_L1 (1-0:32.7.0)
assert isinstance(result[obis.INSTANTANEOUS_VOLTAGE_L1], CosemObject)
assert result[obis.INSTANTANEOUS_VOLTAGE_L1].unit == 'V'
assert isinstance(result[obis.INSTANTANEOUS_VOLTAGE_L1].value, Decimal)
assert result[obis.INSTANTANEOUS_VOLTAGE_L1].value == Decimal('242.5')
# INSTANTANEOUS_VOLTAGE_L2 (1-0:52.7.0)
assert isinstance(result[obis.INSTANTANEOUS_VOLTAGE_L2], CosemObject)
assert result[obis.INSTANTANEOUS_VOLTAGE_L2].unit == 'V'
assert isinstance(result[obis.INSTANTANEOUS_VOLTAGE_L2].value, Decimal)
assert result[obis.INSTANTANEOUS_VOLTAGE_L2].value == Decimal('241.7')
# INSTANTANEOUS_VOLTAGE_L3 (1-0:72.7.0)
assert isinstance(result[obis.INSTANTANEOUS_VOLTAGE_L3], CosemObject)
assert result[obis.INSTANTANEOUS_VOLTAGE_L3].unit == 'V'
assert isinstance(result[obis.INSTANTANEOUS_VOLTAGE_L3].value, Decimal)
assert result[obis.INSTANTANEOUS_VOLTAGE_L3].value == Decimal('243.3')
# INSTANTANEOUS_CURRENT_L1 (1-0:31.7.0)
assert isinstance(result[obis.INSTANTANEOUS_CURRENT_L1], CosemObject)
assert result[obis.INSTANTANEOUS_CURRENT_L1].unit == 'A'
assert isinstance(result[obis.INSTANTANEOUS_CURRENT_L1].value, Decimal)
assert result[obis.INSTANTANEOUS_CURRENT_L1].value == Decimal('0.000')
# INSTANTANEOUS_CURRENT_L2 (1-0:51.7.0)
assert isinstance(result[obis.INSTANTANEOUS_CURRENT_L2], CosemObject)
assert result[obis.INSTANTANEOUS_CURRENT_L2].unit == 'A'
assert isinstance(result[obis.INSTANTANEOUS_CURRENT_L2].value, Decimal)
assert result[obis.INSTANTANEOUS_CURRENT_L2].value == Decimal('0.000')
# INSTANTANEOUS_CURRENT_L3 (1-0:71.7.0)
assert isinstance(result[obis.INSTANTANEOUS_CURRENT_L3], CosemObject)
assert result[obis.INSTANTANEOUS_CURRENT_L3].unit == 'A'
assert isinstance(result[obis.INSTANTANEOUS_CURRENT_L3].value, Decimal)
assert result[obis.INSTANTANEOUS_CURRENT_L3].value == Decimal('0.000')
# ACTUAL_SWITCH_POSITION (0-0:96.3.10)
assert isinstance(result[obis.ACTUAL_SWITCH_POSITION], CosemObject)
assert result[obis.ACTUAL_SWITCH_POSITION].unit is None
assert isinstance(result[obis.ACTUAL_SWITCH_POSITION].value, str)
assert result[obis.ACTUAL_SWITCH_POSITION].value == '1'
# TEXT_MESSAGE (0-0:96.13.0)
assert isinstance(result[obis.TEXT_MESSAGE], CosemObject)
assert result[obis.TEXT_MESSAGE].unit is None
assert result[obis.TEXT_MESSAGE].value is None
# EQUIPMENT_IDENTIFIER (0-0:96.1.1)
assert isinstance(result[obis.EQUIPMENT_IDENTIFIER], CosemObject)
assert result[obis.EQUIPMENT_IDENTIFIER].unit is None
assert result[obis.EQUIPMENT_IDENTIFIER].value is None
def test_checksum_valid(self):
# No exception is raised.
TelegramParser.validate_checksum(TELEGRAM_ISKRA_IE)
def test_checksum_invalid(self):
# Remove the electricty used data value. This causes the checksum to not match anymore.
corrupted_telegram = TELEGRAM_ISKRA_IE.replace(
'1-0:1.8.1(000010.181*kWh)\r\n',
''
)
with self.assertRaises(InvalidChecksumError):
TelegramParser.validate_checksum(corrupted_telegram)
def test_checksum_missing(self):
# Remove the checksum value causing a ParseError.
corrupted_telegram = TELEGRAM_ISKRA_IE.replace('!AD3B\r\n', '')
with self.assertRaises(ParseError):
TelegramParser.validate_checksum(corrupted_telegram)