S allius/pytest (#211)

* - fix pytest setup that can be startet from the rootdir
  - support python venv environment
  - add pytest.ini
  - move common settings from .vscode/settings.json into pytest.ini
  - add missing requirements
  - fix import paths for pytests

* - support python venv environment

* initial version

* - add missing requirements python-dotenv

* fix import paths for pytests

* fix pytest warnings

* initial version

* report 5 slowest test durations

* add more vscode settings for python

app/tests/test_modbus_tcp.py

@@ -5,14 +5,14 @@ from aiomqtt import MqttCodeError
 
 from mock import patch
 from enum import Enum
-from app.src.singleton import Singleton
-from app.src.config import Config
-from app.src.infos import Infos
-from app.src.mqtt import Mqtt
-from app.src.inverter_base import InverterBase
-from app.src.messages import Message, State
-from app.src.proxy import Proxy
-from app.src.modbus_tcp import ModbusConn, ModbusTcp
+from singleton import Singleton
+from config import Config
+from infos import Infos
+from mqtt import Mqtt
+from inverter_base import InverterBase
+from messages import Message, State
+from proxy import Proxy
+from modbus_tcp import ModbusConn, ModbusTcp
 
 
 pytest_plugins = ('pytest_asyncio',)