Add asyncio protocol implementation.

test/test_protocol.py

@@ -0,0 +1,39 @@
+"""Test DSMR serial protocol."""
+
+from unittest.mock import Mock
+
+import pytest
+from dsmr_parser import obis_references as obis
+from dsmr_parser import telegram_specifications
+from dsmr_parser.parsers import TelegramParserV2_2
+from dsmr_parser.protocol import DSMRProtocol
+
+from .test_parse_v2_2 import TELEGRAM_V2_2
+
+
+@pytest.fixture
+def protocol():
+    """DSMRprotocol instance with mocked telegram_callback."""
+
+    parser = TelegramParserV2_2
+    specification = telegram_specifications.V2_2
+
+    telegram_parser = parser(specification)
+    return DSMRProtocol(None, telegram_parser,
+                        telegram_callback=Mock())
+
+
+def test_complete_packet(protocol):
+    """Protocol should assemble incoming lines into complete packet."""
+
+    for line in TELEGRAM_V2_2:
+        protocol.data_received(bytes(line + '\r\n', 'ascii'))
+
+    telegram = protocol.telegram_callback.call_args_list[0][0][0]
+    assert isinstance(telegram, dict)
+
+    assert float(telegram[obis.CURRENT_ELECTRICITY_USAGE].value) == 1.01
+    assert telegram[obis.CURRENT_ELECTRICITY_USAGE].unit == 'kW'
+
+    assert float(telegram[obis.GAS_METER_READING].value) == 1.001
+    assert telegram[obis.GAS_METER_READING].unit == 'm3'