tsun-gen3-proxy/app/tests/test_talent.py

# test_with_pytest.py
import pytest, logging, asyncio
from math import isclose
from app.src.async_stream import AsyncIfcImpl, StreamPtr
from app.src.gen3.talent import Talent, Control
from app.src.config import Config
from app.src.infos import Infos, Register
from app.src.modbus import Modbus
from app.src.messages import State

 
pytest_plugins = ('pytest_asyncio',)

# initialize the proxy statistics
Infos.static_init()

tracer = logging.getLogger('tracer')

class FakeIfc(AsyncIfcImpl):
    def __init__(self):
        super().__init__()
        self.remote = StreamPtr(None)

class MemoryStream(Talent):
    def __init__(self, msg, chunks = (0,), server_side: bool = True):
        self.ifc = FakeIfc()
        super().__init__(('test.local', 1234), self.ifc, server_side)
        if server_side:
            self.mb.timeout = 0.4   # overwrite for faster testing
        self.mb_first_timeout = 0.5
        self.mb_timeout = 0.5
        self.sent_pdu = b''
        self.ifc.tx_fifo.reg_trigger(self.write_cb)
        self.__msg = msg
        self.__msg_len = len(msg)
        self.__chunks = chunks
        self.__offs = 0
        self.__chunk_idx = 0
        self.msg_count = 0
        self.addr = 'Test: SrvSide'
        self.send_msg_ofs = 0
        self.msg_recvd = []

    def write_cb(self):
        self.sent_pdu = self.ifc.tx_fifo.get()


    def append_msg(self, msg):
        self.__msg += msg
        self.__msg_len += len(msg)    

    def _read(self) -> int:
        copied_bytes = 0
        try:    
            if (self.__offs < self.__msg_len):
                chunk_len = self.__chunks[self.__chunk_idx]
                self.__chunk_idx += 1
                if chunk_len!=0:
                    self.ifc.rx_fifo += self.__msg[self.__offs:chunk_len]
                    copied_bytes = chunk_len - self.__offs
                    self.__offs = chunk_len
                else:
                    self.ifc.rx_fifo += self.__msg[self.__offs:]
                    copied_bytes = self.__msg_len - self.__offs
                    self.__offs = self.__msg_len
        except Exception:
            pass   # ignore exceptions here
        return copied_bytes
    
    def _timestamp(self):
        return 1691246944000

    def _utc(self):
        return 1691239744.0
    
    def createClientStream(self, msg, chunks = (0,)):
        c = MemoryStream(msg, chunks, False)
        self.ifc.remote.stream = c
        c.ifc.remote.stream = self
        return c

    def _Talent__flush_recv_msg(self) -> None:
        self.msg_recvd.append(
            {
                'ctrl': int(self.ctrl),
                'msg_id': self.msg_id,
                'header_len': self.header_len,
                'data_len': self.data_len
            }
        )

        super()._Talent__flush_recv_msg()

        self.msg_count += 1
    
    

@pytest.fixture
def msg_contact_info(): # Contact Info message
    return b'\x00\x00\x00\x2c\x10R170000000000001\x91\x00\x08solarhub\x0fsolarhub\x40123456'

@pytest.fixture
def msg_contact_info_empty(): # Contact Info message with empty string
    return b'\x00\x00\x00\x15\x10R170000000000001\x91\x00\x00\x00'

@pytest.fixture
def msg_contact_info_long_id():  # Contact Info message with longer ID
    Config.act_config = {'tsun':{'enabled': True}}
    return b'\x00\x00\x00\x2d\x11R1700000000000011\x91\x00\x08solarhub\x0fsolarhub\x40123456'


@pytest.fixture
def msg_contact_info_broken():  # Contact Info message with invalid string coding
    return b'\x00\x00\x00\x2a\x10R170000000000001\x91\x00solarhubsolarhub\x40123456'

@pytest.fixture
def msg2_contact_info(): # two Contact Info messages
    return b'\x00\x00\x00\x2c\x10R170000000000001\x91\x00\x08solarhub\x0fsolarhub\x40123456\x00\x00\x00\x2c\x10R170000000000002\x91\x00\x08solarhub\x0fsolarhub\x40123456'

@pytest.fixture
def msg_contact_rsp(): # Contact Response message
    return b'\x00\x00\x00\x14\x10R170000000000001\x91\x00\x01'

@pytest.fixture
def msg_contact_rsp2(): # Contact Response message
    return b'\x00\x00\x00\x14\x10R170000000000002\x91\x00\x01'

@pytest.fixture
def msg_contact_invalid(): # Contact Response message
    return b'\x00\x00\x00\x14\x10R170000000000001\x93\x00\x01'

@pytest.fixture
def msg_get_time(): # Get Time Request message
    return b'\x00\x00\x00\x13\x10R170000000000001\x91\x22'           

@pytest.fixture
def msg_time_rsp(): # Get Time Resonse message
    return b'\x00\x00\x00\x1b\x10R170000000000001\x91\x22\x00\x00\x01\x89\xc6\x63\x4d\x80'

@pytest.fixture
def msg_time_rsp_inv(): # Get Time Resonse message
    return b'\x00\x00\x00\x17\x10R170000000000001\x91\x22\x00\x00\x01\x89'

@pytest.fixture
def msg_time_invalid(): # Get Time Request message
    return b'\x00\x00\x00\x13\x10R170000000000001\x94\x22'           

@pytest.fixture
def msg_act_time(): # Act Time Indication message
    return b'\x00\x00\x00\x1c\x10R170000000000001\x91\x99\x01\x00\x00\x01\x89\xc6\x53\x4d\x80'           

@pytest.fixture
def msg_act_time_ofs(): # Act Time Indication message withoffset 3600
    return b'\x00\x00\x00\x1c\x10R170000000000001\x91\x99\x01\x00\x00\x01\x89\xc6\x53\x5b\x90'           

@pytest.fixture
def msg_act_time_ack(): # Act Time Response message
    return b'\x00\x00\x00\x14\x10R170000000000001\x99\x99\x02'

@pytest.fixture
def msg_act_time_cmd(): # Act Time Response message
    return b'\x00\x00\x00\x14\x10R170000000000001\x70\x99\x02'

@pytest.fixture
def msg_act_time_inv(): # Act Time Indication message withoffset 3600
    return b'\x00\x00\x00\x1b\x10R170000000000001\x91\x99\x00\x00\x01\x89\xc6\x53\x5b\x90'           

@pytest.fixture
def msg_controller_ind(): # Data indication from the controller
    msg  =  b'\x00\x00\x01\x2f\x10R170000000000001\x91\x71\x0e\x10\x00\x00\x10R170000000000001'
    msg +=  b'\x01\x00\x00\x01\x89\xc6\x63\x55\x50'
    msg +=  b'\x00\x00\x00\x15\x00\x09\x2b\xa8\x54\x10\x52\x53\x57\x5f\x34\x30\x30\x5f\x56\x31\x2e\x30\x30\x2e\x30\x36\x00\x09\x27\xc0\x54\x06\x52\x61\x79\x6d\x6f'
    msg +=  b'\x6e\x00\x09\x2f\x90\x54\x0b\x52\x53\x57\x2d\x31\x2d\x31\x30\x30\x30\x31\x00\x09\x5a\x88\x54\x0f\x74\x2e\x72\x61\x79\x6d\x6f\x6e\x69\x6f\x74\x2e\x63\x6f\x6d\x00\x09\x5a\xec\x54'
    msg +=  b'\x1c\x6c\x6f\x67\x67\x65\x72\x2e\x74\x61\x6c\x65\x6e\x74\x2d\x6d\x6f\x6e\x69\x74\x6f\x72\x69\x6e\x67\x2e\x63\x6f\x6d\x00\x0d\x00\x20\x49\x00\x00\x00\x01\x00\x0c\x35\x00\x49\x00'
    msg +=  b'\x00\x00\x64\x00\x0c\x96\xa8\x49\x00\x00\x00\x1d\x00\x0c\x7f\x38\x49\x00\x00\x00\x01\x00\x0c\xfc\x38\x49\x00\x00\x00\x01\x00\x0c\xf8\x50\x49\x00\x00\x01\x2c\x00\x0c\x63\xe0\x49'
    msg +=  b'\x00\x00\x00\x00\x00\x0c\x67\xc8\x49\x00\x00\x00\x00\x00\x0c\x50\x58\x49\x00\x00\x00\x01\x00\x09\x5e\x70\x49\x00\x00\x13\x8d\x00\x09\x5e\xd4\x49\x00\x00\x13\x8d\x00\x09\x5b\x50'
    msg +=  b'\x49\x00\x00\x00\x02\x00\x0d\x04\x08\x49\x00\x00\x00\x00\x00\x07\xa1\x84\x49\x00\x00\x00\x01\x00\x0c\x50\x59\x49\x00\x00\x00\x4c\x00\x0d\x1f\x60\x49\x00\x00\x00\x00'
    return msg

@pytest.fixture
def msg_controller_ind_ts_offs(): # Data indication from the controller - offset 0x1000
    msg  =  b'\x00\x00\x01\x2f\x10R170000000000001\x91\x71\x0e\x10\x00\x00\x10R170000000000001'
    msg +=  b'\x01\x00\x00\x01\x89\xc6\x63\x45\x50'
    msg +=  b'\x00\x00\x00\x15\x00\x09\x2b\xa8\x54\x10\x52\x53\x57\x5f\x34\x30\x30\x5f\x56\x31\x2e\x30\x30\x2e\x30\x36\x00\x09\x27\xc0\x54\x06\x52\x61\x79\x6d\x6f'
    msg +=  b'\x6e\x00\x09\x2f\x90\x54\x0b\x52\x53\x57\x2d\x31\x2d\x31\x30\x30\x30\x31\x00\x09\x5a\x88\x54\x0f\x74\x2e\x72\x61\x79\x6d\x6f\x6e\x69\x6f\x74\x2e\x63\x6f\x6d\x00\x09\x5a\xec\x54'
    msg +=  b'\x1c\x6c\x6f\x67\x67\x65\x72\x2e\x74\x61\x6c\x65\x6e\x74\x2d\x6d\x6f\x6e\x69\x74\x6f\x72\x69\x6e\x67\x2e\x63\x6f\x6d\x00\x0d\x00\x20\x49\x00\x00\x00\x01\x00\x0c\x35\x00\x49\x00'
    msg +=  b'\x00\x00\x64\x00\x0c\x96\xa8\x49\x00\x00\x00\x1d\x00\x0c\x7f\x38\x49\x00\x00\x00\x01\x00\x0c\xfc\x38\x49\x00\x00\x00\x01\x00\x0c\xf8\x50\x49\x00\x00\x01\x2c\x00\x0c\x63\xe0\x49'
    msg +=  b'\x00\x00\x00\x00\x00\x0c\x67\xc8\x49\x00\x00\x00\x00\x00\x0c\x50\x58\x49\x00\x00\x00\x01\x00\x09\x5e\x70\x49\x00\x00\x13\x8d\x00\x09\x5e\xd4\x49\x00\x00\x13\x8d\x00\x09\x5b\x50'
    msg +=  b'\x49\x00\x00\x00\x02\x00\x0d\x04\x08\x49\x00\x00\x00\x00\x00\x07\xa1\x84\x49\x00\x00\x00\x01\x00\x0c\x50\x59\x49\x00\x00\x00\x4c\x00\x0d\x1f\x60\x49\x00\x00\x00\x00'
    return msg

@pytest.fixture
def msg_controller_ack(): # Get Time Request message
    return b'\x00\x00\x00\x14\x10R170000000000001\x99\x71\x01'

@pytest.fixture
def msg_controller_invalid(): # Get Time Request message
    return b'\x00\x00\x00\x14\x10R170000000000001\x92\x71\x01'

@pytest.fixture
def msg_inverter_ind(): # Data indication from the controller
    msg  =  b'\x00\x00\x00\x8b\x10R170000000000001\x91\x04\x01\x90\x00\x01\x10R170000000000001'
    msg +=  b'\x01\x00\x00\x01\x89\xc6\x63\x61\x08'
    msg +=  b'\x00\x00\x00\x06\x00\x00\x00\x0a\x54\x08\x4d\x69\x63\x72\x6f\x69\x6e\x76\x00\x00\x00\x14\x54\x04\x54\x53\x55\x4e\x00\x00\x00\x1E\x54\x07\x56\x35\x2e\x30\x2e\x31\x31\x00\x00\x00\x28'
    msg +=  b'\x54\x10T170000000000001\x00\x00\x00\x32\x54\x0a\x54\x53\x4f\x4c\x2d\x4d\x53\x36\x30\x30\x00\x00\x00\x3c\x54\x05\x41\x2c\x42\x2c\x43'
    return msg

@pytest.fixture
def msg_inverter_ind_ts_offs(): # Data indication from the controller + offset 256
    msg  =  b'\x00\x00\x00\x8b\x10R170000000000001\x91\x04\x01\x90\x00\x01\x10R170000000000001'
    msg +=  b'\x01\x00\x00\x01\x89\xc6\x63\x62\x08'
    msg +=  b'\x00\x00\x00\x06\x00\x00\x00\x0a\x54\x08\x4d\x69\x63\x72\x6f\x69\x6e\x76\x00\x00\x00\x14\x54\x04\x54\x53\x55\x4e\x00\x00\x00\x1E\x54\x07\x56\x35\x2e\x30\x2e\x31\x31\x00\x00\x00\x28'
    msg +=  b'\x54\x10T170000000000001\x00\x00\x00\x32\x54\x0a\x54\x53\x4f\x4c\x2d\x4d\x53\x36\x30\x30\x00\x00\x00\x3c\x54\x05\x41\x2c\x42\x2c\x43'
    return msg

@pytest.fixture
def msg_inverter_ind2(): # Data indication from the controller
    msg  =  b'\x00\x00\x05\x02\x10R170000000000001\x91\x04\x01\x90\x00\x01\x10R170000000000001'
    msg +=  b'\x01\x00\x00\x01\x89\xc6\x63\x61\x08'
    msg +=  b'\x00\x00\x00\xa3\x00\x00\x00\x64\x53\x00\x01\x00\x00\x00\xc8\x53\x00\x02\x00\x00\x01\x2c\x53\x00\x00\x00\x00\x01\x90\x49\x00\x00\x00\x00\x00\x00\x01\x91\x53\x00\x00'
    msg +=  b'\x00\x00\x01\x92\x53\x00\x00\x00\x00\x01\x93\x53\x00\x00\x00\x00\x01\x94\x53\x00\x00\x00\x00\x01\x95\x53\x00\x00\x00\x00\x01\x96\x53\x00\x00\x00\x00\x01\x97\x53\x00'
    msg +=  b'\x00\x00\x00\x01\x98\x53\x00\x00\x00\x00\x01\x99\x53\x00\x00\x00\x00\x01\x9a\x53\x00\x00\x00\x00\x01\x9b\x53\x00\x00\x00\x00\x01\x9c\x53\x00\x00\x00\x00\x01\x9d\x53'
    msg +=  b'\x00\x00\x00\x00\x01\x9e\x53\x00\x00\x00\x00\x01\x9f\x53\x00\x00\x00\x00\x01\xa0\x53\x00\x00\x00\x00\x01\xf4\x49\x00\x00\x00\x00\x00\x00\x01\xf5\x53\x00\x00\x00\x00'
    msg +=  b'\x01\xf6\x53\x00\x00\x00\x00\x01\xf7\x53\x00\x00\x00\x00\x01\xf8\x53\x00\x00\x00\x00\x01\xf9\x53\x00\x00\x00\x00\x01\xfa\x53\x00\x00\x00\x00\x01\xfb\x53\x00\x00\x00'
    msg +=  b'\x00\x01\xfc\x53\x00\x00\x00\x00\x01\xfd\x53\x00\x00\x00\x00\x01\xfe\x53\x00\x00\x00\x00\x01\xff\x53\x00\x00\x00\x00\x02\x00\x53\x00\x00\x00\x00\x02\x01\x53\x00\x00'
    msg +=  b'\x00\x00\x02\x02\x53\x00\x00\x00\x00\x02\x03\x53\x00\x00\x00\x00\x02\x04\x53\x00\x00\x00\x00\x02\x58\x49\x00\x00\x00\x00\x00\x00\x02\x59\x53\x00\x00\x00\x00\x02\x5a'
    msg +=  b'\x53\x00\x00\x00\x00\x02\x5b\x53\x00\x00\x00\x00\x02\x5c\x53\x00\x00\x00\x00\x02\x5d\x53\x00\x00\x00\x00\x02\x5e\x53\x00\x00\x00\x00\x02\x5f\x53\x00\x00\x00\x00\x02'
    msg +=  b'\x60\x53\x00\x00\x00\x00\x02\x61\x53\x00\x00\x00\x00\x02\x62\x53\x00\x00\x00\x00\x02\x63\x53\x00\x00\x00\x00\x02\x64\x53\x00\x00\x00\x00\x02\x65\x53\x00\x00\x00\x00'
    msg +=  b'\x02\x66\x53\x00\x00\x00\x00\x02\x67\x53\x00\x00\x00\x00\x02\x68\x53\x00\x00\x00\x00\x02\xbc\x49\x00\x00\x00\x00\x00\x00\x02\xbd\x53\x00\x00\x00\x00\x02\xbe\x53\x00'
    msg +=  b'\x00\x00\x00\x02\xbf\x53\x00\x00\x00\x00\x02\xc0\x53\x00\x00\x00\x00\x02\xc1\x53\x00\x00\x00\x00\x02\xc2\x53\x00\x00\x00\x00\x02\xc3\x53\x00\x00\x00\x00\x02\xc4\x53'
    msg +=  b'\x00\x00\x00\x00\x02\xc5\x53\x00\x00\x00\x00\x02\xc6\x53\x00\x00\x00\x00\x02\xc7\x53\x00\x00\x00\x00\x02\xc8\x53\x00\x00\x00\x00\x02\xc9\x53\x00\x00\x00\x00\x02\xca'
    msg +=  b'\x53\x00\x00\x00\x00\x02\xcb\x53\x00\x00\x00\x00\x02\xcc\x53\x00\x00\x00\x00\x03\x20\x53\x00\x00\x00\x00\x03\x84\x53\x50\x11\x00\x00\x03\xe8\x46\x43\x61\x66\x66\x00'
    msg +=  b'\x00\x04\x4c\x46\x3e\xeb\x85\x1f\x00\x00\x04\xb0\x46\x42\x48\x14\x7b\x00\x00\x05\x14\x53\x00\x17\x00\x00\x05\x78\x53\x00\x00\x00\x00\x05\xdc\x53\x02\x58\x00\x00\x06'
    msg +=  b'\x40\x46\x42\xd3\x66\x66\x00\x00\x06\xa4\x46\x42\x06\x66\x66\x00\x00\x07\x08\x46\x3f\xf4\x7a\xe1\x00\x00\x07\x6c\x46\x42\x81\x00\x00\x00\x00\x07\xd0\x46\x42\x06\x00'
    msg +=  b'\x00\x00\x00\x08\x34\x46\x3f\xae\x14\x7b\x00\x00\x08\x98\x46\x42\x36\xcc\xcd\x00\x00\x08\xfc\x46\x00\x00\x00\x00\x00\x00\x09\x60\x46\x00\x00\x00\x00\x00\x00\x09\xc4'
    msg +=  b'\x46\x00\x00\x00\x00\x00\x00\x0a\x28\x46\x00\x00\x00\x00\x00\x00\x0a\x8c\x46\x00\x00\x00\x00\x00\x00\x0a\xf0\x46\x00\x00\x00\x00\x00\x00\x0b\x54\x46\x3f\xd9\x99\x9a'
    msg +=  b'\x00\x00\x0b\xb8\x46\x41\x8a\xe1\x48\x00\x00\x0c\x1c\x46\x3f\x8a\x3d\x71\x00\x00\x0c\x80\x46\x41\x1b\xd7\x0a\x00\x00\x0c\xe4\x46\x3f\x1e\xb8\x52\x00\x00\x0d\x48\x46'
    msg +=  b'\x40\xf3\xd7\x0a\x00\x00\x0d\xac\x46\x00\x00\x00\x00\x00\x00\x0e\x10\x46\x00\x00\x00\x00\x00\x00\x0e\x74\x46\x00\x00\x00\x00\x00\x00\x0e\xd8\x46\x00\x00\x00\x00\x00'
    msg +=  b'\x00\x0f\x3c\x53\x00\x00\x00\x00\x0f\xa0\x53\x00\x00\x00\x00\x10\x04\x53\x55\xaa\x00\x00\x10\x68\x53\x00\x00\x00\x00\x10\xcc\x53\x00\x00\x00\x00\x11\x30\x53\x00\x00'
    msg +=  b'\x00\x00\x11\x94\x53\x00\x00\x00\x00\x11\xf8\x53\xff\xff\x00\x00\x12\x5c\x53\xff\xff\x00\x00\x12\xc0\x53\x00\x02\x00\x00\x13\x24\x53\xff\xff\x00\x00\x13\x88\x53\xff'
    msg +=  b'\xff\x00\x00\x13\xec\x53\xff\xff\x00\x00\x14\x50\x53\xff\xff\x00\x00\x14\xb4\x53\xff\xff\x00\x00\x15\x18\x53\xff\xff\x00\x00\x15\x7c\x53\x00\x00\x00\x00\x27\x10\x53'
    msg +=  b'\x00\x02\x00\x00\x27\x74\x53\x00\x3c\x00\x00\x27\xd8\x53\x00\x68\x00\x00\x28\x3c\x53\x05\x00\x00\x00\x28\xa0\x46\x43\x79\x00\x00\x00\x00\x29\x04\x46\x43\x48\x00\x00'
    msg +=  b'\x00\x00\x29\x68\x46\x42\x48\x33\x33\x00\x00\x29\xcc\x46\x42\x3e\x3d\x71\x00\x00\x2a\x30\x53\x00\x01\x00\x00\x2a\x94\x46\x43\x37\x00\x00\x00\x00\x2a\xf8\x46\x42\xce'
    msg +=  b'\x00\x00\x00\x00\x2b\x5c\x53\x00\x96\x00\x00\x2b\xc0\x53\x00\x10\x00\x00\x2c\x24\x46\x43\x90\x00\x00\x00\x00\x2c\x88\x46\x43\x95\x00\x00\x00\x00\x2c\xec\x53\x00\x06'
    msg +=  b'\x00\x00\x2d\x50\x53\x00\x06\x00\x00\x2d\xb4\x46\x43\x7d\x00\x00\x00\x00\x2e\x18\x46\x42\x3d\xeb\x85\x00\x00\x2e\x7c\x46\x42\x3d\xeb\x85\x00\x00\x2e\xe0\x53\x00\x03'
    msg +=  b'\x00\x00\x2f\x44\x53\x00\x03\x00\x00\x2f\xa8\x46\x42\x4d\xeb\x85\x00\x00\x30\x0c\x46\x42\x4d\xeb\x85\x00\x00\x30\x70\x53\x00\x03\x00\x00\x30\xd4\x53\x00\x03\x00\x00'
    msg +=  b'\x31\x38\x46\x42\x08\x00\x00\x00\x00\x31\x9c\x53\x00\x05\x00\x00\x32\x00\x53\x04\x00\x00\x00\x32\x64\x53\x00\x01\x00\x00\x32\xc8\x53\x13\x9c\x00\x00\x33\x2c\x53\x0f'
    msg +=  b'\xa0\x00\x00\x33\x90\x53\x00\x4f\x00\x00\x33\xf4\x53\x00\x66\x00\x00\x34\x58\x53\x03\xe8\x00\x00\x34\xbc\x53\x04\x00\x00\x00\x35\x20\x53\x00\x00\x00\x00\x35\x84\x53'
    msg +=  b'\x00\x00\x00\x00\x35\xe8\x53\x00\x00\x00\x00\x36\x4c\x53\x00\x00\x00\x01\x38\x80\x53\x00\x02\x00\x01\x38\x81\x53\x00\x01\x00\x01\x38\x82\x53\x00\x01\x00\x01\x38\x83'
    msg +=  b'\x53\x00\x00'  
    return msg

@pytest.fixture
def msg_inverter_ind_new(): # Data indication from DSP V5.0.17
    msg =  b'\x00\x00\x04\xa0\x10R170000000000001\x91\x04\x01\x90\x00\x01\x10R170000000000001'
    msg += b'\x01\x00\x00\x01'
    msg += b'\x90\x31\x4d\x68\x78\x00\x00\x00\xa3\x00\x00\x00\x00\x53\x00\x00'
    msg += b'\x00\x00\x00\x80\x53\x00\x00\x00\x00\x01\x04\x53\x00\x00\x00\x00'
    msg += b'\x01\x90\x41\x00\x00\x01\x91\x53\x00\x00\x00\x00\x01\x90\x53\x00'
    msg += b'\x00\x00\x00\x01\x91\x53\x00\x00\x00\x00\x01\x90\x53\x00\x00\x00'
    msg += b'\x00\x01\x91\x53\x00\x00\x00\x00\x01\x94\x53\x00\x00\x00\x00\x01'
    msg += b'\x95\x53\x00\x00\x00\x00\x01\x98\x53\x00\x00\x00\x00\x01\x99\x53'
    msg += b'\x00\x00\x00\x00\x01\x80\x53\x00\x00\x00\x00\x01\x90\x41\x00\x00'
    msg += b'\x01\x94\x53\x00\x00\x00\x00\x01\x94\x53\x00\x00\x00\x00\x01\x96'
    msg += b'\x53\x00\x00\x00\x00\x01\x98\x53\x00\x00\x00\x00\x01\xa0\x53\x00'
    msg += b'\x00\x00\x00\x01\xf0\x41\x00\x00\x01\xf1\x53\x00\x00\x00\x00\x01'
    msg += b'\xf4\x53\x00\x00\x00\x00\x01\xf5\x53\x00\x00\x00\x00\x01\xf8\x53'
    msg += b'\x00\x00\x00\x00\x01\xf9\x53\x00\x00\x00\x00\x00\x00\x53\x00\x00'
    msg += b'\x00\x00\x00\x01\x53\x00\x00\x00\x00\x00\x00\x53\x00\x00\x00\x00'
    msg += b'\x00\x01\x53\x00\x00\x00\x00\x00\x04\x53\x00\x00\x00\x00\x00\x58'
    msg += b'\x41\x00\x00\x02\x00\x53\x00\x00\x00\x00\x02\x00\x53\x00\x00\x00'
    msg += b'\x00\x02\x02\x53\x00\x00\x00\x00\x02\x00\x53\x00\x00\x00\x00\x02'
    msg += b'\x04\x53\x00\x00\x00\x00\x02\x58\x41\x00\x00\x02\x59\x53\x00\x00'
    msg += b'\x00\x00\x02\x40\x53\x00\x00\x00\x00\x02\x41\x53\x00\x00\x00\x00'
    msg += b'\x02\x40\x53\x00\x00\x00\x00\x02\x41\x53\x00\x00\x00\x00\x02\x44'
    msg += b'\x53\x00\x00\x00\x00\x02\x45\x53\x00\x00\x00\x00\x02\x60\x53\x00'
    msg += b'\x00\x00\x00\x02\x61\x53\x00\x00\x00\x00\x02\x60\x53\x00\x00\x00'
    msg += b'\x00\x02\x20\x41\x00\x00\x02\x24\x53\x00\x00\x00\x00\x02\x24\x53'
    msg += b'\x00\x00\x00\x00\x02\x26\x53\x00\x00\x00\x00\x02\x40\x53\x00\x00'
    msg += b'\x00\x00\x02\x40\x53\x00\x00\x00\x00\x02\x80\x41\x00\x00\x02\x81'
    msg += b'\x53\x00\x00\x00\x00\x02\x84\x53\x00\x00\x00\x00\x02\x85\x53\x00'
    msg += b'\x00\x00\x00\x02\xc0\x53\x00\x00\x00\x00\x02\xc1\x53\x00\x00\x00'
    msg += b'\x00\x02\xc0\x53\x00\x00\x00\x00\x02\xc1\x53\x00\x00\x00\x00\x02'
    msg += b'\xc0\x53\x00\x00\x00\x00\x02\xc1\x53\x00\x00\x00\x00\x02\xc4\x53'
    msg += b'\x00\x00\x00\x00\x02\x00\x53\x00\x00\x00\x00\x02\x80\x53\x00\x00'
    msg += b'\x00\x00\x02\xc8\x42\x00\x00\x00\x00\x48\x42\x00\x00\x00\x00\x80'
    msg += b'\x42\x00\x00\x00\x00\x04\x53\x00\x00\x00\x00\x01\x20\x53\x00\x00'
    msg += b'\x00\x00\x01\x84\x53\x00\x10\x00\x00\x02\x40\x46\x00\x00\x00\x00'
    msg += b'\x00\x00\x04\x04\x46\x02\x00\x46\x02\x00\x00\x04\x00\x46\x00\x00'
    msg += b'\x00\x00\x00\x00\x05\x04\x42\x00\x00\x00\x05\x50\x42\x00\x00\x00'
    msg += b'\x00\x14\x42\x00\x00\x00\x00\x00\x46\x00\x00\x00\x00\x00\x00\x00'
    msg += b'\xa4\x46\x00\x00\x00\x00\x00\x00\x01\x00\x46\x00\x00\x00\x00\x00'
    msg += b'\x00\x01\x44\x46\x00\x00\x00\x00\x00\x00\x02\x00\x46\x00\x00\x00'
    msg += b'\x00\x00\x00\x08\x04\x46\x00\x00\x00\x00\x00\x00\x08\x90\x46\x00'
    msg += b'\x00\x00\x00\x00\x00\x08\x54\x46\x00\x00\x00\x00\x00\x00\x09\x20'
    msg += b'\x46\x00\x00\x00\x00\x00\x00\x08\x04\x46\x00\x00\x00\x00\x00\x00'
    msg += b'\x08\x00\x46\x00\x00\x00\x00\x00\x00\x08\x84\x46\x00\x00\x00\x00'
    msg += b'\x00\x00\x08\x40\x46\x00\x00\x00\x00\x00\x00\x09\x04\x46\x00\x00'
    msg += b'\x00\x00\x00\x00\x0a\x10\x46\x00\x00\x00\x00\x00\x00\x0c\x14\x46'
    msg += b'\x00\x00\x00\x00\x00\x00\x0c\x80\x46\x00\x00\x00\x00\x00\x00\x0c'
    msg += b'\x24\x42\x00\x00\x00\x0d\x00\x42\x00\x00\x00\x00\x04\x42\x00\x00'
    msg += b'\x00\x00\x00\x42\x00\x00\x00\x00\x44\x42\x00\x00\x00\x00\x10\x42'
    msg += b'\x00\x00\x00\x01\x14\x53\x00\x00\x00\x00\x01\xa0\x53\x00\x00\x00'
    msg += b'\x00\x10\x04\x53\x55\xaa\x00\x00\x10\x40\x53\x00\x00\x00\x00\x10'
    msg += b'\x04\x53\x00\x00\x00\x00\x11\x00\x53\x00\x00\x00\x00\x11\x84\x53'
    msg += b'\x00\x00\x00\x00\x10\x50\x53\xff\xff\x00\x00\x10\x14\x53\x03\x20'
    msg += b'\x00\x00\x10\x00\x53\x00\x00\x00\x00\x11\x24\x53\x00\x00\x00\x00'
    msg += b'\x03\x00\x53\x00\x00\x00\x00\x03\x64\x53\x00\x00\x00\x00\x04\x50'
    msg += b'\x53\x00\x00\x00\x00\x00\x34\x53\x00\x00\x00\x00\x00\x00\x42\x02'
    msg += b'\x00\x00\x01\x04\x42\x00\x00\x00\x21\x00\x42\x00\x00\x00\x21\x44'
    msg += b'\x42\x00\x00\x00\x22\x10\x53\x00\x00\x00\x00\x28\x14\x42\x01\x00'
    msg += b'\x00\x28\xa0\x46\x42\x48\x00\x00\x00\x00\x29\x04\x42\x00\x00\x00'
    msg += b'\x29\x40\x42\x00\x00\x00\x28\x04\x46\x42\x10\x00\x00\x00\x00\x28'
    msg += b'\x00\x42\x00\x00\x00\x28\x84\x42\x00\x00\x00\x28\x50\x42\x00\x00'
    msg += b'\x00\x29\x14\x42\x00\x00\x00\x2a\x00\x42\x00\x00\x00\x2c\x24\x46'
    msg += b'\x42\x10\x00\x00\x00\x00\x2c\x80\x42\x00\x00\x00\x2c\x44\x53\x00'
    msg += b'\x02\x00\x00\x2d\x00\x42\x00\x00\x00\x20\x04\x46\x42\x4d\x00\x00'
    msg += b'\x00\x00\x20\x10\x42\x00\x00\x00\x20\x54\x42\x00\x00\x00\x20\x20'
    msg += b'\x42\x00\x00\x00\x21\x04\x53\x00\x01\x00\x00\x22\x00\x42\x00\x00'
    msg += b'\x00\x30\x04\x42\x00\x00\x00\x30\x40\x53\x00\x00\x00\x00\x30\x04'
    msg += b'\x53\x00\x00\x00\x00\x31\x10\x42\x00\x00\x00\x31\x94\x53\x00\x04'
    msg += b'\x00\x00\x30\x00\x53\x00\x00\x00\x00\x30\x24\x53\x00\x00\x00\x00'
    msg += b'\x30\x00\x53\x00\x00\x00\x00\x31\x04\x53\x00\x00\x00\x00\x31\x80'
    msg += b'\x53\x00\x00\x00\x00\x32\x44\x53\x00\x00\x00\x00\x30\x00\x53\x00'
    msg += b'\x00\x00\x00\x30\x80\x53\x00\x00\x00\x00\x30\x00\x53\x00\x00\x00'
    msg += b'\x00\x30\x80\x53\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00'
    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x03\x00'
    msg += b'\x00\x00\x00\x00'
    return msg

@pytest.fixture
def msg_inverter_ind_0w(): # Data indication with 0.5W grid output
    msg =  b'\x00\x00\x05\x02\x10R170000000000001\x91\x04\x01\x90\x00\x01\x10R170000000000001'
    msg += b'\x01\x00\x00\x01'
    msg += b'\x90\x31\x4d\x68\x78'
    msg +=  b'\x00\x00\x00\xa3\x00\x00\x00\x64\x53\x00\x01\x00\x00\x00\xc8\x53\x00\x02\x00\x00\x01\x2c\x53\x00\x00\x00\x00\x01\x90\x49\x00\x00\x00\x00\x00\x00\x01\x91\x53\x00\x00'
    msg +=  b'\x00\x00\x01\x92\x53\x00\x00\x00\x00\x01\x93\x53\x00\x00\x00\x00\x01\x94\x53\x00\x00\x00\x00\x01\x95\x53\x00\x00\x00\x00\x01\x96\x53\x00\x00\x00\x00\x01\x97\x53\x00'
    msg +=  b'\x00\x00\x00\x01\x98\x53\x00\x00\x00\x00\x01\x99\x53\x00\x00\x00\x00\x01\x9a\x53\x00\x00\x00\x00\x01\x9b\x53\x00\x00\x00\x00\x01\x9c\x53\x00\x00\x00\x00\x01\x9d\x53'
    msg +=  b'\x00\x00\x00\x00\x01\x9e\x53\x00\x00\x00\x00\x01\x9f\x53\x00\x00\x00\x00\x01\xa0\x53\x00\x00\x00\x00\x01\xf4\x49\x00\x00\x00\x00\x00\x00\x01\xf5\x53\x00\x00\x00\x00'
    msg +=  b'\x01\xf6\x53\x00\x00\x00\x00\x01\xf7\x53\x00\x00\x00\x00\x01\xf8\x53\x00\x00\x00\x00\x01\xf9\x53\x00\x00\x00\x00\x01\xfa\x53\x00\x00\x00\x00\x01\xfb\x53\x00\x00\x00'
    msg +=  b'\x00\x01\xfc\x53\x00\x00\x00\x00\x01\xfd\x53\x00\x00\x00\x00\x01\xfe\x53\x00\x00\x00\x00\x01\xff\x53\x00\x00\x00\x00\x02\x00\x53\x00\x00\x00\x00\x02\x01\x53\x00\x00'
    msg +=  b'\x00\x00\x02\x02\x53\x00\x00\x00\x00\x02\x03\x53\x00\x00\x00\x00\x02\x04\x53\x00\x00\x00\x00\x02\x58\x49\x00\x00\x00\x00\x00\x00\x02\x59\x53\x00\x00\x00\x00\x02\x5a'
    msg +=  b'\x53\x00\x00\x00\x00\x02\x5b\x53\x00\x00\x00\x00\x02\x5c\x53\x00\x00\x00\x00\x02\x5d\x53\x00\x00\x00\x00\x02\x5e\x53\x00\x00\x00\x00\x02\x5f\x53\x00\x00\x00\x00\x02'
    msg +=  b'\x60\x53\x00\x00\x00\x00\x02\x61\x53\x00\x00\x00\x00\x02\x62\x53\x00\x00\x00\x00\x02\x63\x53\x00\x00\x00\x00\x02\x64\x53\x00\x00\x00\x00\x02\x65\x53\x00\x00\x00\x00'
    msg +=  b'\x02\x66\x53\x00\x00\x00\x00\x02\x67\x53\x00\x00\x00\x00\x02\x68\x53\x00\x00\x00\x00\x02\xbc\x49\x00\x00\x00\x00\x00\x00\x02\xbd\x53\x00\x00\x00\x00\x02\xbe\x53\x00'
    msg +=  b'\x00\x00\x00\x02\xbf\x53\x00\x00\x00\x00\x02\xc0\x53\x00\x00\x00\x00\x02\xc1\x53\x00\x00\x00\x00\x02\xc2\x53\x00\x00\x00\x00\x02\xc3\x53\x00\x00\x00\x00\x02\xc4\x53'
    msg +=  b'\x00\x00\x00\x00\x02\xc5\x53\x00\x00\x00\x00\x02\xc6\x53\x00\x00\x00\x00\x02\xc7\x53\x00\x00\x00\x00\x02\xc8\x53\x00\x00\x00\x00\x02\xc9\x53\x00\x00\x00\x00\x02\xca'
    msg +=  b'\x53\x00\x00\x00\x00\x02\xcb\x53\x00\x00\x00\x00\x02\xcc\x53\x00\x00\x00\x00\x03\x20\x53\x00\x00\x00\x00\x03\x84\x53\x50\x11\x00\x00\x03\xe8\x46\x43\x61\x66\x66\x00'
    msg +=  b'\x00\x04\x4c\x46\x3e\xeb\x85\x1f\x00\x00\x04\xb0\x46\x42\x48\x14\x7b\x00\x00\x05\x14\x53\x00\x17\x00\x00\x05\x78\x53\x00\x00\x00\x00\x05\xdc\x53\x02\x58\x00\x00\x06'
    msg += b'\x40\x46\x3f\x00\x00\x00\x00\x00\x06\xa4\x46\x42\x06\x66\x66\x00\x00\x07\x08\x46\x3f\xf4\x7a\xe1\x00\x00\x07\x6c\x46\x42\x81\x00\x00\x00\x00\x07\xd0\x46\x42\x06\x00'
    msg +=  b'\x00\x00\x00\x08\x34\x46\x3f\xae\x14\x7b\x00\x00\x08\x98\x46\x42\x36\xcc\xcd\x00\x00\x08\xfc\x46\x00\x00\x00\x00\x00\x00\x09\x60\x46\x00\x00\x00\x00\x00\x00\x09\xc4'
    msg +=  b'\x46\x00\x00\x00\x00\x00\x00\x0a\x28\x46\x00\x00\x00\x00\x00\x00\x0a\x8c\x46\x00\x00\x00\x00\x00\x00\x0a\xf0\x46\x00\x00\x00\x00\x00\x00\x0b\x54\x46\x3f\xd9\x99\x9a'
    msg +=  b'\x00\x00\x0b\xb8\x46\x41\x8a\xe1\x48\x00\x00\x0c\x1c\x46\x3f\x8a\x3d\x71\x00\x00\x0c\x80\x46\x41\x1b\xd7\x0a\x00\x00\x0c\xe4\x46\x3f\x1e\xb8\x52\x00\x00\x0d\x48\x46'
    msg +=  b'\x40\xf3\xd7\x0a\x00\x00\x0d\xac\x46\x00\x00\x00\x00\x00\x00\x0e\x10\x46\x00\x00\x00\x00\x00\x00\x0e\x74\x46\x00\x00\x00\x00\x00\x00\x0e\xd8\x46\x00\x00\x00\x00\x00'
    msg +=  b'\x00\x0f\x3c\x53\x00\x00\x00\x00\x0f\xa0\x53\x00\x00\x00\x00\x10\x04\x53\x55\xaa\x00\x00\x10\x68\x53\x00\x00\x00\x00\x10\xcc\x53\x00\x00\x00\x00\x11\x30\x53\x00\x00'
    msg +=  b'\x00\x00\x11\x94\x53\x00\x00\x00\x00\x11\xf8\x53\xff\xff\x00\x00\x12\x5c\x53\xff\xff\x00\x00\x12\xc0\x53\x00\x02\x00\x00\x13\x24\x53\xff\xff\x00\x00\x13\x88\x53\xff'
    msg +=  b'\xff\x00\x00\x13\xec\x53\xff\xff\x00\x00\x14\x50\x53\xff\xff\x00\x00\x14\xb4\x53\xff\xff\x00\x00\x15\x18\x53\xff\xff\x00\x00\x15\x7c\x53\x00\x00\x00\x00\x27\x10\x53'
    msg +=  b'\x00\x02\x00\x00\x27\x74\x53\x00\x3c\x00\x00\x27\xd8\x53\x00\x68\x00\x00\x28\x3c\x53\x05\x00\x00\x00\x28\xa0\x46\x43\x79\x00\x00\x00\x00\x29\x04\x46\x43\x48\x00\x00'
    msg +=  b'\x00\x00\x29\x68\x46\x42\x48\x33\x33\x00\x00\x29\xcc\x46\x42\x3e\x3d\x71\x00\x00\x2a\x30\x53\x00\x01\x00\x00\x2a\x94\x46\x43\x37\x00\x00\x00\x00\x2a\xf8\x46\x42\xce'
    msg +=  b'\x00\x00\x00\x00\x2b\x5c\x53\x00\x96\x00\x00\x2b\xc0\x53\x00\x10\x00\x00\x2c\x24\x46\x43\x90\x00\x00\x00\x00\x2c\x88\x46\x43\x95\x00\x00\x00\x00\x2c\xec\x53\x00\x06'
    msg +=  b'\x00\x00\x2d\x50\x53\x00\x06\x00\x00\x2d\xb4\x46\x43\x7d\x00\x00\x00\x00\x2e\x18\x46\x42\x3d\xeb\x85\x00\x00\x2e\x7c\x46\x42\x3d\xeb\x85\x00\x00\x2e\xe0\x53\x00\x03'
    msg +=  b'\x00\x00\x2f\x44\x53\x00\x03\x00\x00\x2f\xa8\x46\x42\x4d\xeb\x85\x00\x00\x30\x0c\x46\x42\x4d\xeb\x85\x00\x00\x30\x70\x53\x00\x03\x00\x00\x30\xd4\x53\x00\x03\x00\x00'
    msg +=  b'\x31\x38\x46\x42\x08\x00\x00\x00\x00\x31\x9c\x53\x00\x05\x00\x00\x32\x00\x53\x04\x00\x00\x00\x32\x64\x53\x00\x01\x00\x00\x32\xc8\x53\x13\x9c\x00\x00\x33\x2c\x53\x0f'
    msg +=  b'\xa0\x00\x00\x33\x90\x53\x00\x4f\x00\x00\x33\xf4\x53\x00\x66\x00\x00\x34\x58\x53\x03\xe8\x00\x00\x34\xbc\x53\x04\x00\x00\x00\x35\x20\x53\x00\x00\x00\x00\x35\x84\x53'
    msg +=  b'\x00\x00\x00\x00\x35\xe8\x53\x00\x00\x00\x00\x36\x4c\x53\x00\x00\x00\x01\x38\x80\x53\x00\x02\x00\x01\x38\x81\x53\x00\x01\x00\x01\x38\x82\x53\x00\x01\x00\x01\x38\x83'
    msg +=  b'\x53\x00\x00'  
    return msg

@pytest.fixture
def msg_inverter_ack(): # Get Time Request message
    return b'\x00\x00\x00\x14\x10R170000000000001\x99\x04\x01'

@pytest.fixture
def msg_inverter_invalid(): # Get Time Request message
    return b'\x00\x00\x00\x14\x10R170000000000001\x92\x04\x01'

@pytest.fixture
def msg_unknown(): # Get Time Request message
    return b'\x00\x00\x00\x17\x10R170000000000001\x91\x17\x01\x02\x03\x04'

@pytest.fixture
def config_tsun_allow_all():
    Config.act_config = {'tsun':{'enabled': True}, 'inverters':{'allow_all':True}}

@pytest.fixture
def config_no_tsun_inv1():
    Config.act_config = {'tsun':{'enabled': False},'inverters':{'R170000000000001':{'node_id':'inv1', 'modbus_polling': True, 'suggested_area':'roof'}}}

@pytest.fixture
def config_tsun_inv1():
    Config.act_config = {'tsun':{'enabled': True},'inverters':{'R170000000000001':{'node_id':'inv1', 'modbus_polling': True, 'suggested_area':'roof'}}}

@pytest.fixture
def config_no_modbus_poll():
    Config.act_config = {'tsun':{'enabled': True},'inverters':{'R170000000000001':{'node_id':'inv1', 'modbus_polling': False, 'suggested_area':'roof'}}}

@pytest.fixture
def msg_ota_req(): # Over the air update request from tsun cloud
    msg  =  b'\x00\x00\x01\x16\x10R170000000000001\x70\x13\x01\x02\x76\x35\x70\x68\x74\x74\x70'
    msg +=  b'\x3a\x2f\x2f\x77\x77\x77\x2e\x74\x61\x6c\x65\x6e\x74\x2d\x6d\x6f'
    msg +=  b'\x6e\x69\x74\x6f\x72\x69\x6e\x67\x2e\x63\x6f\x6d\x3a\x39\x30\x30'
    msg +=  b'\x32\x2f\x70\x72\x6f\x64\x2d\x61\x70\x69\x2f\x72\x6f\x6d\x2f\x75'
    msg +=  b'\x70\x64\x61\x74\x65\x2f\x64\x6f\x77\x6e\x6c\x6f\x61\x64\x3f\x76'
    msg +=  b'\x65\x72\x3d\x56\x31\x2e\x30\x30\x2e\x31\x37\x26\x6e\x61\x6d\x65'
    msg +=  b'\x3d\x47\x33\x2d\x57\x69\x46\x69\x2b\x2d\x56\x31\x2e\x30\x30\x2e'
    msg +=  b'\x31\x37\x2d\x4f\x54\x41\x26\x65\x78\x74\x3d\x30\x60\x68\x74\x74'
    msg +=  b'\x70\x3a\x2f\x2f\x77\x77\x77\x2e\x74\x61\x6c\x65\x6e\x74\x2d\x6d'
    msg +=  b'\x6f\x6e\x69\x74\x6f\x72\x69\x6e\x67\x2e\x63\x6f\x6d\x3a\x39\x30'
    msg +=  b'\x30\x32\x2f\x70\x72\x6f\x64\x2d\x61\x70\x69\x2f\x72\x6f\x6d\x2f'
    msg +=  b'\x75\x70\x64\x61\x74\x65\x2f\x63\x61\x6c\x6c\x62\x61\x63\x6b\x3f'
    msg +=  b'\x71\x69\x64\x3d\x31\x35\x30\x33\x36\x32\x26\x72\x69\x64\x3d\x32'
    msg +=  b'\x32\x39\x26\x64\x69\x64\x3d\x31\x33\x34\x32\x32\x35\x20\x36\x35'
    msg +=  b'\x66\x30\x64\x37\x34\x34\x62\x66\x33\x39\x61\x62\x38\x32\x34\x64'
    msg +=  b'\x32\x38\x62\x38\x34\x64\x31\x39\x65\x64\x33\x31\x31\x63\x06\x34'
    msg +=  b'\x36\x38\x36\x33\x33\x01\x31\x01\x30\x00'  
    return msg    

@pytest.fixture
def msg_ota_ack(): # Over the air update rewuest from tsun cloud
    return b'\x00\x00\x00\x14\x10R170000000000001\x91\x13\x01'

@pytest.fixture
def msg_ota_invalid(): # Get Time Request message
    return b'\x00\x00\x00\x14\x10R170000000000001\x99\x13\x01'

@pytest.fixture
def msg_modbus_cmd():
    msg  = b'\x00\x00\x00\x20\x10R170000000000001'
    msg += b'\x70\x77\x00\x01\xa3\x28\x08\x01\x06\x20\x08'
    msg += b'\x00\x00\x03\xc8'
    return msg

@pytest.fixture
def msg_modbus_cmd_crc_err():
    msg  = b'\x00\x00\x00\x20\x10R170000000000001'
    msg += b'\x70\x77\x00\x01\xa3\x28\x08\x01\x06\x20\x08'
    msg += b'\x00\x00\x04\xc8'
    return msg

@pytest.fixture
def msg_modbus_rsp():
    msg  = b'\x00\x00\x00\x20\x10R170000000000001'
    msg += b'\x91\x77\x17\x18\x19\x1a\x08\x01\x06\x20\x08'
    msg += b'\x00\x00\x03\xc8'
    return msg

@pytest.fixture
def msg_modbus_inv():
    msg  = b'\x00\x00\x00\x20\x10R170000000000001'
    msg += b'\x99\x77\x17\x18\x19\x1a\x08\x01\x06\x20\x08'
    msg += b'\x00\x00\x03\xc8'
    return msg

@pytest.fixture
def msg_modbus_rsp20():
    msg  = b'\x00\x00\x00\x45\x10R170000000000001'
    msg += b'\x91\x77\x17\x18\x19\x1a\x2d\x01\x03\x28\x51'
    msg += b'\x09\x08\xd3\x00\x29\x13\x87\x00\x3e\x00\x00\x01\x2c\x03\xb4\x00'
    msg += b'\x08\x00\x00\x00\x00\x01\x59\x01\x21\x03\xe6\x00\x00\x00\x00\x00'
    msg += b'\x00\x00\x00\x00\x00\x00\x00\xdb\x6b'
    return msg

@pytest.fixture
def msg_modbus_rsp21():
    msg  = b'\x00\x00\x00\x45\x10R170000000000001'
    msg += b'\x91\x77\x17\x18\x19\x1a\x2d\x01\x03\x28\x51'
    msg += b'\x0e\x08\xd3\x00\x29\x13\x87\x00\x3e\x00\x00\x01\x2c\x03\xb4\x00'
    msg += b'\x08\x00\x00\x00\x00\x01\x59\x01\x21\x03\xe6\x00\x00\x00\x00\x00'
    msg += b'\x00\x00\x00\x00\x00\x00\x00\xe6\xef'
    return msg

@pytest.fixture
def msg_modbus_cmd_new():
    msg  = b'\x00\x00\x00\x20\x10R170000000000001'
    msg += b'\x70\x77\x00\x01\xa3\x28\x08\x01\x03\x30\x00'
    msg += b'\x00\x30\x4a\xde'
    return msg

@pytest.fixture
def msg_modbus_rsp20_new():
    msg  = b'\x00\x00\x00\x7e\x10R170000000000001'
    msg += b'\x91\x87\x00\x01\xa3\x28\x00\x65\x01\x03\x60'
    msg += b'\x00\x01\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
    msg += b'\x51\x09\x09\x17\x00\x17\x13\x88\x00\x40\x00\x00\x02\x58\x02\x23'
    msg += b'\x00\x07\x00\x00\x00\x00\x01\x4f\x00\xab\x02\x40\x00\x00\x00\x00'
    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\xc0\x93\x00\x00'
    msg += b'\x00\x00\x33\xad\x00\x09\x00\x00\x98\x1c\x00\x00\x00\x00\x00\x00'
    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
    msg += b'\xa7\xab'
    return msg

@pytest.fixture
def broken_recv_buf(): # There are two message in the buffer, but the second has overwritten the first partly
    msg  = b'\x00\x00\x05\x02\x10R170000000000001\x91\x04\x01\x90\x00\x01\x10R170000000000001'
    msg += b'\x01\x00\x00\x01\x89\xc6\x63\x61\x08'
    msg += b'\x00\x00\x00\xa3\x00\x00\x00\x64\x53\x00\x01'
    msg += b'\x00\x00\x00\xc8\x53\x00\x00\x00\x00\x01\x2c\x53\x00\x02\x00\x00'
    msg += b'\x01\x90\x49\x00\x00\x00\x00\x00\x00\x01\x91\x53\x00\x00\x00\x00'
    msg += b'\x01\x92\x53\x00\x00\x00\x00\x01\x93\x53\x00\x00\x00\x00\x01\x94'
    msg += b'\x53\x00\x00\x00\x00\x00\x05\x02\x10\x52\x31\x37\x45\x37\x33\x30'
    msg += b'\x37\x30\x32\x31\x44\x30\x30\x36\x41\x91\x04\x01\x90\x00\x01\x10'
    msg += b'\x54\x31\x37\x45\x37\x33\x30\x37\x30\x32\x31\x44\x30\x30\x36\x41'
    msg += b'\x01\x00\x00\x01\x91\x1c\xe6\x80\xd0\x00\x00\x00\xa3\x00\x00\x00'
    msg += b'\x64\x53\x00\x01\x00\x00\x00\xc8\x53\x00\x00\x00\x00\x01\x2c\x53'
    msg += b'\x00\x02\x00\x00\x01\x90\x49\x00\x00\x00\x00\x00\x00\x01\x91\x53'
    msg += b'\x00\x00\x00\x00\x01\x92\x53\x00\x00\x00\x00\x01\x93\x53\x00\x00'
    msg += b'\x00\x00\x01\x94\x53\x00\x00\x00\x00\x01\x95\x53\x00\x00\x00\x00'
    msg += b'\x01\x96\x53\x00\x00\x00\x00\x01\x97\x53\x00\x00\x00\x00\x01\x98'
    msg += b'\x53\x00\x00\x00\x00\x01\x99\x53\x00\x00\x00\x00\x01\x9a\x53\x00'
    msg += b'\x00\x00\x00\x01\x9b\x53\x00\x00\x00\x00\x01\x9c\x53\x00\x00\x00'
    msg += b'\x00\x01\x9d\x53\x00\x00\x00\x00\x01\x9e\x53\x00\x00\x00\x00\x01'
    msg += b'\x9f\x53\x00\x00\x00\x00\x01\xa0\x53\x00\x00\x00\x00\x01\xf4\x49'
    msg += b'\x00\x00\x00\x00\x00\x00\x01\xf5\x53\x00\x00\x00\x00\x01\xf6\x53'
    msg += b'\x00\x00\x00\x00\x01\xf7\x53\x00\x00\x00\x00\x01\xf8\x53\x00\x00'
    msg += b'\x00\x00\x01\xf9\x53\x00\x00\x00\x00\x01\xfa\x53\x00\x00\x00\x00'
    msg += b'\x01\xfb\x53\x00\x00\x00\x00\x01\xfc\x53\x00\x00\x00\x00\x01\xfd'
    msg += b'\x53\x00\x00\x00\x00\x01\xfe\x53\x00\x00\x00\x00\x01\xff\x53\x00'
    msg += b'\x00\x00\x00\x02\x00\x53\x00\x00\x00\x00\x02\x01\x53\x00\x00\x00'
    msg += b'\x00\x02\x02\x53\x00\x00\x00\x00\x02\x03\x53\x00\x00\x00\x00\x02'
    msg += b'\x04\x53\x00\x00\x00\x00\x02\x58\x49\x00\x00\x00\x00\x00\x00\x02'
    msg += b'\x59\x53\x00\x00\x00\x00\x02\x5a\x53\x00\x00\x00\x00\x02\x5b\x53'
    msg += b'\x00\x00\x00\x00\x02\x5c\x53\x00\x00\x00\x00\x02\x5d\x53\x00\x00'
    msg += b'\x00\x00\x02\x5e\x53\x00\x00\x00\x00\x02\x5f\x53\x00\x00\x00\x00'
    msg += b'\x02\x60\x53\x00\x00\x00\x00\x02\x61\x53\x00\x00\x00\x00\x02\x62'
    msg += b'\x53\x00\x00\x00\x00\x02\x63\x53\x00\x00\x00\x00\x02\x64\x53\x00'
    msg += b'\x00\x00\x00\x02\x65\x53\x00\x00\x00\x00\x02\x66\x53\x00\x00\x00'
    msg += b'\x00\x02\x67\x53\x00\x00\x00\x00\x02\x68\x53\x00\x00\x00\x00\x02'
    msg += b'\xbc\x49\x00\x00\x00\x00\x00\x00\x02\xbd\x53\x00\x00\x00\x00\x02'
    msg += b'\xbe\x53\x00\x00\x00\x00\x02\xbf\x53\x00\x00\x00\x00\x02\xc0\x53'
    msg += b'\x00\x00\x00\x00\x02\xc1\x53\x00\x00\x00\x00\x02\xc2\x53\x00\x00'
    msg += b'\x00\x00\x02\xc3\x53\x00\x00\x00\x00\x02\xc4\x53\x00\x00\x00\x00'
    msg += b'\x02\xc5\x53\x00\x00\x00\x00\x02\xc6\x53\x00\x00\x00\x00\x02\xc7'
    msg += b'\x53\x00\x00\x00\x00\x02\xc8\x53\x00\x00\x00\x00\x02\xc9\x53\x00'
    msg += b'\x00\x00\x00\x02\xca\x53\x00\x00\x00\x00\x02\xcb\x53\x00\x00\x00'
    msg += b'\x00\x02\xcc\x53\x00\x00\x00\x00\x03\x20\x53\x00\x00\x00\x00\x03'
    msg += b'\x84\x53\x51\x09\x00\x00\x03\xe8\x46\x43\x62\xb3\x33\x00\x00\x04'
    msg += b'\x4c\x46\x3e\xc2\x8f\x5c\x00\x00\x04\xb0\x46\x42\x48\x00\x00\x00'
    msg += b'\x00\x05\x14\x53\x00\x18\x00\x00\x05\x78\x53\x00\x00\x00\x00\x05'
    msg += b'\xdc\x53\x02\x58\x00\x00\x06\x40\x46\x42\xae\xcc\xcd\x00\x00\x06'
    msg += b'\xa4\x46\x3f\x4c\xcc\xcd\x00\x00\x07\x08\x46\x00\x00\x00\x00\x00'
    msg += b'\x00\x07\x6c\x46\x00\x00\x00\x00\x00\x00\x07\xd0\x46\x42\x0a\x66'
    msg += b'\x66\x00\x00\x08\x34\x46\x40\x2a\x3d\x71\x00\x00\x08\x98\x46\x42'
    msg += b'\xb8\x33\x33\x00\x00\x08\xfc\x46\x00\x00\x00\x00\x00\x00\x09\x60'
    msg += b'\x46\x00\x00\x00\x00\x00\x00\x09\xc4\x46\x00\x00\x00\x00\x00\x00'
    msg += b'\x0a\x28\x46\x00\x00\x00\x00\x00\x00\x0a\x8c\x46\x00\x00\x00\x00'
    msg += b'\x00\x00\x0a\xf0\x46\x00\x00\x00\x00\x00\x00\x0b\x54\x46\x3e\x05'
    msg += b'\x1e\xb8\x00\x00\x0b\xb8\x46\x43\xe2\x42\x8f\x00\x00\x0c\x1c\x46'
    msg += b'\x00\x00\x00\x00\x00\x00\x0c\x80\x46\x43\x04\x4a\x3d\x00\x00\x0c'
    msg += b'\xe4\x46\x3e\x0f\x5c\x29\x00\x00\x0d\x48\x46\x43\xad\x48\xf6\x00'
    msg += b'\x00\x0d\xac\x46\x00\x00\x00\x00\x00\x00\x0e\x10\x46\x00\x00\x00'
    msg += b'\x00\x00\x00\x0e\x74\x46\x00\x00\x00\x00\x00\x00\x0e\xd8\x46\x00'
    msg += b'\x00\x00\x00\x00\x00\x0f\x3c\x53\x00\x00\x00\x00\x0f\xa0\x53\x00'
    msg += b'\x00\x00\x00\x10\x04\x53\x55\xaa\x00\x00\x10\x68\x53\x00\x01\x00'
    msg += b'\x00\x10\xcc\x53\x00\x00\x00\x00\x11\x30\x53\x00\x00\x00\x00\x11'
    msg += b'\x94\x53\x00\x00\x00\x00\x11\xf8\x53\xff\xff\x00\x00\x12\x5c\x53'
    msg += b'\x03\x20\x00\x00\x12\xc0\x53\x00\x02\x00\x00\x13\x24\x53\x04\x00'
    msg += b'\x00\x00\x13\x88\x53\x04\x00\x00\x00\x13\xec\x53\x04\x00\x00\x00'
    msg += b'\x14\x50\x53\x04\x00\x00\x00\x14\xb4\x53\x00\x01\x00\x00\x15\x18'
    msg += b'\x53\x08\x04\x00\x00\x15\x7c\x53\x00\x00\x00\x00\x27\x10\x53\x00'
    msg += b'\x02\x00\x00\x27\x74\x53\x00\x3c\x00\x00\x27\xd8\x53\x00\x68\x00'
    msg += b'\x00\x28\x3c\x53\x05\x00\x00\x00\x28\xa0\x46\x43\x79\x00\x00\x00'
    msg += b'\x00\x29\x04\x46\x43\x48\x00\x00\x00\x00\x29\x68\x46\x42\x48\x33'
    msg += b'\x33\x00\x00\x29\xcc\x46\x42\x3e\x3d\x71\x00\x00\x2a\x30\x53\x00'
    msg += b'\x01\x00\x00\x2a\x94\x46\x43\x37\x00\x00\x00\x00\x2a\xf8\x46\x42'
    msg += b'\xce\x00\x00\x00\x00\x2b\x5c\x53\x00\x96\x00\x00\x2b\xc0\x53\x00'
    msg += b'\x10\x00\x00\x2c\x24\x46\x43\x90\x00\x00\x00\x00\x2c\x88\x46\x43'
    msg += b'\x95\x00\x00\x00\x00\x2c\xec\x53\x00\x06\x00\x00\x2d\x50\x53\x00'
    msg += b'\x06\x00\x00\x2d\xb4\x46\x43\x7d\x00\x00\x00\x00\x2e\x18\x46\x42'
    msg += b'\x3d\xeb\x85\x00\x00\x2e\x7c\x46\x42\x3d\xeb\x85\x00\x00\x2e\xe0'
    msg += b'\x53\x00\x03\x00\x00\x2f\x44\x53\x00\x03\x00\x00\x2f\xa8\x46\x42'
    msg += b'\x4d\xeb\x85\x00\x00\x30\x0c\x46\x42\x4d\xeb\x85\x00\x00\x30\x70'
    msg += b'\x53\x00\x03\x00\x00\x30\xd4\x53\x00\x03\x00\x00\x31\x38\x46\x42'
    msg += b'\x08\x00\x00\x00\x00\x31'
    return msg

@pytest.fixture
def multiple_recv_buf(): # There are three message in the buffer, but the second has overwritten the first partly
    msg  = b'\x00\x00\x05\x02\x10R170000000000001\x91\x04\x01\x90\x00\x01\x10R170000000000001'
    msg += b'\x01\x00\x00\x01\x89\xc6\x63\x61\x08'
    msg += b'\x00\x00\x00\xa3\x00\x00\x00\x64\x53\x00\x01'
    msg += b'\x00\x00\x00\xc8\x53\x00\x00\x00\x00\x01\x2c\x53\x00\x02\x00\x00'  #  | ....S.....,S....
    msg += b'\x01\x90\x49\x00\x00\x00\x00\x00\x00\x01\x91\x53\x00\x00\x00\x00'  #  | ..I........S....
    msg += b'\x13\x10\x52\x31\x37\x45\x37\x33\x30\x37\x30\x32\x31\x44\x30\x30'  #  | ..R17E7307021D00
    msg += b'\x36\x41\x91\x22\x00\x00\x03\xbf\x10\x52\x31\x37\x45\x37\x33\x30'  #  | 6A.".....R17E730
    msg += b'\x37\x30\x32\x31\x44\x30\x30\x36\x41\x91\x71\x0e\x10\x00\x00\x10'  #  | 7021D006A.q.....
    msg += b'\x52\x31\x37\x45\x37\x33\x30\x37\x30\x32\x31\x44\x30\x30\x36\x41'  #  | R17E7307021D006A
    msg += b'\x01\x00\x00\x01\x91\xa3\xfe\xaf\x98\x00\x00\x00\x35\x00\x09\x2b'  #  | ............5..+
    msg += b'\xa8\x54\x10\x52\x53\x57\x5f\x34\x30\x30\x5f\x56\x31\x2e\x30\x30'  #  | .T.RSW_400_V1.00
    msg += b'\x2e\x31\x37\x00\x09\x27\xc0\x54\x06\x52\x61\x79\x6d\x6f\x6e\x00'  #  | .17..'.T.Raymon.
    msg += b'\x09\x2f\x90\x54\x0b\x52\x53\x57\x2d\x31\x2d\x31\x30\x30\x30\x31'  #  | ./.T.RSW-1-10001
    msg += b'\x00\x09\x5a\x88\x54\x0f\x74\x2e\x72\x61\x79\x6d\x6f\x6e\x69\x6f'  #  | ..Z.T.t.raymonio
    msg += b'\x74\x2e\x63\x6f\x6d\x00\x09\x5a\xec\x54\x1c\x6c\x6f\x67\x67\x65'  #  | t.com..Z.T.logge
    msg += b'\x72\x2e\x74\x61\x6c\x65\x6e\x74\x2d\x6d\x6f\x6e\x69\x74\x6f\x72'  #  | r.talent-monitor
    msg += b'\x69\x6e\x67\x2e\x63\x6f\x6d\x00\x0d\x2f\x00\x54\x10\xff\xff\xff'  #  | ing.com../.T....
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x32'  #  | ...............2
    msg += b'\xe8\x54\x10\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff'  #  | .T..............
    msg += b'\xff\xff\xff\x00\x0d\x36\xd0\x54\x10\xff\xff\xff\xff\xff\xff\xff'  #  | .....6.T........
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x3a\xb8\x54\x10\xff'  #  | ...........:.T..
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00'  #  | ................
    msg += b'\x0d\x3e\xa0\x54\x10\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff'  #  | .>.T............
    msg += b'\xff\xff\xff\xff\xff\x00\x0d\x42\x88\x54\x10\xff\xff\xff\xff\xff'  #  | .......B.T......
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x46\x70\x54'  #  | .............FpT
    msg += b'\x10\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff'  #  | ................
    msg += b'\xff\x00\x0d\x4a\x58\x54\x10\xff\xff\xff\xff\xff\xff\xff\xff\xff'  #  | ...JXT..........
    msg += b'\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x4e\x40\x54\x10\xff\xff\xff'  #  | .........N@T....
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x52'  #  | ...............R
    msg += b'\x28\x54\x10\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff'  #  | (T..............
    msg += b'\xff\xff\xff\x00\x0d\x56\x10\x54\x10\xff\xff\xff\xff\xff\xff\xff'  #  | .....V.T........
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x59\xf8\x54\x10\xff'  #  | ...........Y.T..
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00'  #  | ................
    msg += b'\x0d\x5d\xe0\x54\x10\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff'  #  | .].T............
    msg += b'\xff\xff\xff\xff\xff\x00\x0d\x61\xc8\x54\x10\xff\xff\xff\xff\xff'  #  | .......a.T......
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x65\xb0\x54'  #  | .............e.T
    msg += b'\x10\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff'  #  | ................
    msg += b'\xff\x00\x0d\x69\x98\x54\x10\xff\xff\xff\xff\xff\xff\xff\xff\xff'  #  | ...i.T..........
    msg += b'\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x6d\x80\x54\x10\xff\xff\xff'  #  | .........m.T....
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x71'  #  | ...............q
    msg += b'\x68\x54\x10\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff'  #  | hT..............
    msg += b'\xff\xff\xff\x00\x0d\x75\x50\x54\x10\xff\xff\xff\xff\xff\xff\xff'  #  | .....uPT........
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x79\x38\x54\x10\xff'  #  | ...........y8T..
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00'  #  | ................
    msg += b'\x0d\x7d\x20\x54\x10\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff'  #  | .} T............
    msg += b'\xff\xff\xff\xff\xff\x00\x0d\x81\x08\x54\x10\xff\xff\xff\xff\xff'  #  | .........T......
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x84\xf0\x54'  #  | ...............T
    msg += b'\x10\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff'  #  | ................
    msg += b'\xff\x00\x0d\x88\xd8\x54\x10\xff\xff\xff\xff\xff\xff\xff\xff\xff'  #  | .....T..........
    msg += b'\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x8c\xc0\x54\x10\xff\xff\xff'  #  | ...........T....
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x90'  #  | ................
    msg += b'\xa8\x54\x10\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff'  #  | .T..............
    msg += b'\xff\xff\xff\x00\x0d\x94\x90\x54\x10\xff\xff\xff\xff\xff\xff\xff'  #  | .......T........
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00\x0d\x98\x78\x54\x10\xff'  #  | ............xT..
    msg += b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00'  #  | ................
    msg += b'\x0d\x00\x20\x49\x00\x00\x00\x01\x00\x0c\x35\x00\x49\x00\x00\x00'  #  | .. I......5.I...
    msg += b'\x28\x00\x0c\x96\xa8\x49\x00\x00\x01\x69\x00\x0c\x7f\x38\x49\x00'  #  | (....I...i...8I.
    msg += b'\x00\x00\x01\x00\x0c\xfc\x38\x49\x00\x00\x00\x01\x00\x0c\xf8\x50'  #  | ......8I.......P
    msg += b'\x49\x00\x00\x01\x2c\x00\x0c\x63\xe0\x49\x00\x00\x00\x00\x00\x0c'  #  | I...,..c.I......
    msg += b'\x67\xc8\x49\x00\x00\x00\x00\x00\x0c\x50\x58\x49\x00\x00\x00\x01'  #  | g.I......PXI....
    msg += b'\x00\x09\x5e\x70\x49\x00\x00\x13\x8d\x00\x09\x5e\xd4\x49\x00\x00'  #  | ..^pI......^.I..
    msg += b'\x13\x8d\x00\x09\x5b\x50\x49\x00\x00\x00\x02\x00\x0d\x04\x08\x49'  #  | ....[PI........I
    msg += b'\x00\x00\x00\x00\x00\x07\xa1\x84\x49\x00\x00\x00\x01\x00\x0c\x50'  #  | ........I......P
    msg += b'\x59\x49\x00\x00\x00\x3e\x00\x0d\x1f\x60\x49\x00\x00\x00\x00\x00'  #  | YI...>...`I.....
    msg += b'\x0d\x23\x48\x49\xff\xff\xff\xff\x00\x0d\x27\x30\x49\xff\xff\xff'  #  | .#HI......'0I...
    msg += b'\xff\x00\x0d\x2b\x18\x4c\x00\x00\x00\x00\xff\xff\xff\xff\x00\x0c'  #  | ...+.L..........
    msg += b'\xa2\x60\x49\x00\x00\x00\x00\x00\x00\x05\x02\x10\x52\x31\x37\x45'  #  | .`I.........R17E
    msg += b'\x37\x33\x30\x37\x30\x32\x31\x44\x30\x30\x36\x41\x91\x04\x01\x90'  #  | 7307021D006A....
    msg += b'\x00\x01\x10\x54\x31\x37\x45\x37\x33\x30\x37\x30\x32\x31\x44\x30'  #  | ...T17E7307021D0
    msg += b'\x30\x36\x41\x01\x00\x00\x01\x91\xa3\xfe\xb3\x80\x00\x00\x00\xa3'  #  | 06A.............
    msg += b'\x00\x00\x00\x64\x53\x00\x01\x00\x00\x00\xc8\x53\x00\x00\x00\x00'  #  | ...dS......S....
    msg += b'\x01\x2c\x53\x00\x02\x00\x00\x01\x90\x49\x00\x00\x00\x00\x00\x00'  #  | .,S......I......
    msg += b'\x01\x91\x53\x00\x00\x00\x00\x01\x92\x53\x00\x00\x00\x00\x01\x93'  #  | ..S......S......
    msg += b'\x53\x00\x00\x00\x00\x01\x94\x53\x00\x00\x00\x00\x01\x95\x53\x00'  #  | S......S......S.
    msg += b'\x00\x00\x00\x01\x96\x53\x00\x00\x00\x00\x01\x97\x53\x00\x00\x00'  #  | .....S......S...
    msg += b'\x00\x01\x98\x53\x00\x00\x00\x00\x01\x99\x53\x00\x00\x00\x00\x01'  #  | ...S......S.....
    msg += b'\x9a\x53\x00\x00\x00\x00\x01\x9b\x53\x00\x00\x00\x00\x01\x9c\x53'  #  | .S......S......S
    msg += b'\x00\x00\x00\x00\x01\x9d\x53\x00\x00\x00\x00\x01\x9e\x53\x00\x00'  #  | ......S......S..
    msg += b'\x00\x00\x01\x9f\x53\x00\x00\x00\x00\x01\xa0\x53\x00\x00\x00\x00'  #  | ....S......S....
    msg += b'\x01\xf4\x49\x00\x00\x00\x00\x00\x00\x01\xf5\x53\x00\x00\x00\x00'  #  | ..I........S....
    msg += b'\x01\xf6\x53\x00\x00\x00\x00\x01\xf7\x53\x00\x00\x00\x00\x01\xf8'  #  | ..S......S......
    msg += b'\x53\x00\x00\x00\x00\x01\xf9\x53\x00\x00\x00\x00\x01\xfa\x53\x00'  #  | S......S......S.
    msg += b'\x00\x00\x00\x01\xfb\x53\x00\x00\x00\x00\x01\xfc\x53\x00\x00\x00'  #  | .....S......S...
    msg += b'\x00\x01\xfd\x53\x00\x00\x00\x00\x01\xfe\x53\x00\x00\x00\x00\x01'  #  | ...S......S.....
    msg += b'\xff\x53\x00\x00\x00\x00\x02\x00\x53\x00\x00\x00\x00\x02\x01\x53'  #  | .S......S......S
    msg += b'\x00\x00\x00\x00\x02\x02\x53\x00\x00\x00\x00\x02\x03\x53\x00\x00'  #  | ......S......S..
    msg += b'\x00\x00\x02\x04\x53\x00\x00\x00\x00\x02\x58\x49\x00\x00\x00\x00'  #  | ....S.....XI....
    msg += b'\x00\x00\x02\x59\x53\x00\x00\x00\x00\x02\x5a\x53\x00\x00\x00\x00'  #  | ...YS.....ZS....
    msg += b'\x02\x5b\x53\x00\x00\x00\x00\x02\x5c\x53\x00\x00\x00\x00\x02\x5d'  #  | .[S.....\S.....]
    msg += b'\x53\x00\x00\x00\x00\x02\x5e\x53\x00\x00\x00\x00\x02\x5f\x53\x00'  #  | S.....^S....._S.
    msg += b'\x00\x00\x00\x02\x60\x53\x00\x00\x00\x00\x02\x61\x53\x00\x00\x00'  #  | ....`S.....aS...
    msg += b'\x00\x02\x62\x53\x00\x00\x00\x00\x02\x63\x53\x00\x00\x00\x00\x02'  #  | ..bS.....cS.....
    msg += b'\x64\x53\x00\x00\x00\x00\x02\x65\x53\x00\x00\x00\x00\x02\x66\x53'  #  | dS.....eS.....fS
    msg += b'\x00\x00\x00\x00\x02\x67\x53\x00\x00\x00\x00\x02\x68\x53\x00\x00'  #  | .....gS.....hS..
    msg += b'\x00\x00\x02\xbc\x49\x00\x00\x00\x00\x00\x00\x02\xbd\x53\x00\x00'  #  | ....I........S..
    msg += b'\x00\x00\x02\xbe\x53\x00\x00\x00\x00\x02\xbf\x53\x00\x00\x00\x00'  #  | ....S......S....
    msg += b'\x02\xc0\x53\x00\x00\x00\x00\x02\xc1\x53\x00\x00\x00\x00\x02\xc2'  #  | ..S......S......
    msg += b'\x53\x00\x00\x00\x00\x02\xc3\x53\x00\x00\x00\x00\x02\xc4\x53\x00'  #  | S......S......S.
    msg += b'\x00\x00\x00\x02\xc5\x53\x00\x00\x00\x00\x02\xc6\x53\x00\x00\x00'  #  | .....S......S...
    msg += b'\x00\x02\xc7\x53\x00\x00\x00\x00\x02\xc8\x53\x00\x00\x00\x00\x02'  #  | ...S......S.....
    msg += b'\xc9\x53\x00\x00\x00\x00\x02\xca\x53\x00\x00\x00\x00\x02\xcb\x53'  #  | .S......S......S
    msg += b'\x00\x00\x00\x00\x02\xcc\x53\x00\x00\x00\x00\x03\x20\x53\x00\x00'  #  | ......S..... S..
    msg += b'\x00\x00\x03\x84\x53\x51\x09\x00\x00\x03\xe8\x46\x43\x65\x99\x9a'  #  | ....SQ.....FCe..
    msg += b'\x00\x00\x04\x4c\x46\x3e\xd7\x0a\x3d\x00\x00\x04\xb0\x46\x42\x48'  #  | ...LF>..=....FBH
    msg += b'\x28\xf6\x00\x00\x05\x14\x53\x00\x1f\x00\x00\x05\x78\x53\x00\x00'  #  | (.....S.....xS..
    msg += b'\x00\x00\x05\xdc\x53\x02\x58\x00\x00\x06\x40\x46\x42\xc1\x33\x33'  #  | ....S.X...@FB.33
    msg += b'\x00\x00\x06\xa4\x46\x3f\x33\x33\x33\x00\x00\x07\x08\x46\x00\x00'  #  | ....F?333....F..
    msg += b'\x00\x00\x00\x00\x07\x6c\x46\x00\x00\x00\x00\x00\x00\x07\xd0\x46'  #  | .....lF........F
    msg += b'\x42\x05\x99\x9a\x00\x00\x08\x34\x46\x40\x41\xeb\x85\x00\x00\x08'  #  | B......4F@A.....
    msg += b'\x98\x46\x42\xcb\x66\x66\x00\x00\x08\xfc\x46\x00\x00\x00\x00\x00'  #  | .FB.ff....F.....
    msg += b'\x00\x09\x60\x46\x00\x00\x00\x00\x00\x00\x09\xc4\x46\x00\x00\x00'  #  | ..`F........F...
    msg += b'\x00\x00\x00\x0a\x28\x46\x00\x00\x00\x00\x00\x00\x0a\x8c\x46\x00'  #  | ....(F........F.
    msg += b'\x00\x00\x00\x00\x00\x0a\xf0\x46\x00\x00\x00\x00\x00\x00\x0b\x54'  #  | .......F.......T
    msg += b'\x46\x3f\x19\x99\x9a\x00\x00\x0b\xb8\x46\x43\xf3\x95\xc3\x00\x00'  #  | F?.......FC.....
    msg += b'\x0c\x1c\x46\x00\x00\x00\x00\x00\x00\x0c\x80\x46\x43\x04\x4a\x3d'  #  | ..F........FC.J=
    msg += b'\x00\x00\x0c\xe4\x46\x3f\x23\xd7\x0a\x00\x00\x0d\x48\x46\x43\xbf'  #  | ....F?#.....HFC.
    msg += b'\x9e\xb8\x00\x00\x0d\xac\x46\x00\x00\x00\x00\x00\x00\x0e\x10\x46'  #  | ......F........F
    msg += b'\x00\x00\x00\x00\x00\x00\x0e\x74\x46\x00\x00\x00\x00\x00\x00\x0e'  #  | .......tF.......
    msg += b'\xd8\x46\x00\x00\x00\x00\x00\x00\x0f\x3c\x53\x00\x00\x00\x00\x0f'  #  | .F.......<S.....
    msg += b'\xa0\x53\x00\x00\x00\x00\x10\x04\x53\x55\xaa\x00\x00\x10\x68\x53'  #  | .S......SU....hS
    msg += b'\x00\x00\x00\x00\x10\xcc\x53\x00\x00\x00\x00\x11\x30\x53\x00\x00'  #  | ......S.....0S..
    msg += b'\x00\x00\x11\x94\x53\x00\x00\x00\x00\x11\xf8\x53\xff\xff\x00\x00'  #  | ....S......S....
    msg += b'\x12\x5c\x53\x03\x20\x00\x00\x12\xc0\x53\x00\x02\x00\x00\x13\x24'  #  | .\S. ....S.....$
    msg += b'\x53\x04\x00\x00\x00\x13\x88\x53\x04\x00\x00\x00\x13\xec\x53\x04'  #  | S......S......S.
    msg += b'\x00\x00\x00\x14\x50\x53\x04\x00\x00\x00\x14\xb4\x53\x00\x01\x00'  #  | ....PS......S...
    msg += b'\x00\x15\x18\x53\x08\x1e\x00\x00\x15\x7c\x53\x00\x00\x00\x00\x27'  #  | ...S.....|S....'
    msg += b'\x10\x53\x00\x02\x00\x00\x27\x74\x53\x00\x3c\x00\x00\x27\xd8\x53'  #  | .S....'tS.<..'.S
    msg += b'\x00\x68\x00\x00\x28\x3c\x53\x05\x00\x00\x00\x28\xa0\x46\x43\x79'  #  | .h..(<S....(.FCy
    msg += b'\x00\x00\x00\x00\x29\x04\x46\x43\x48\x00\x00\x00\x00\x29\x68\x46'  #  | ....).FCH....)hF
    msg += b'\x42\x48\x33\x33\x00\x00\x29\xcc\x46\x42\x3e\x3d\x71\x00\x00\x2a'  #  | BH33..).FB>=q..*
    msg += b'\x30\x53\x00\x01\x00\x00\x2a\x94\x46\x43\x37\x00\x00\x00\x00\x2a'  #  | 0S....*.FC7....*
    msg += b'\xf8\x46\x42\xce\x00\x00\x00\x00\x2b\x5c\x53\x00\x96\x00\x00\x2b'  #  | .FB.....+\S....+
    msg += b'\xc0\x53\x00\x10\x00\x00\x2c\x24\x46\x43\x90\x00\x00\x00\x00\x2c'  #  | .S....,$FC.....,
    msg += b'\x88\x46\x43\x95\x00\x00\x00\x00\x2c\xec\x53\x00\x06\x00\x00\x2d'  #  | .FC.....,.S....-
    msg += b'\x50\x53\x00\x06\x00\x00\x2d\xb4\x46\x43\x7d\x00\x00\x00\x00\x2e'  #  | PS....-.FC}.....
    msg += b'\x18\x46\x42\x3d\xeb\x85\x00\x00\x2e\x7c\x46\x42\x3d\xeb\x85\x00'  #  | .FB=.....|FB=...
    msg += b'\x00\x2e\xe0\x53\x00\x03\x00\x00\x2f\x44\x53\x00\x03\x00\x00\x2f'  #  | ...S..../DS..../
    msg += b'\xa8\x46\x42\x4d\xeb\x85\x00\x00\x30\x0c\x46\x42\x4d\xeb\x85\x00'  #  | .FBM....0.FBM...
    msg += b'\x00\x30\x70\x53\x00\x03\x00\x00\x30\xd4\x53\x00\x03\x00\x00\x31'  #  | .0pS....0.S....1
    msg += b'\x38\x46\x42\x08\x00\x00\x00\x00\x31\x9c\x53\x00\x05\x00\x00\x32'  #  | 8FB.....1.S....2
    msg += b'\x00\x53\x01\x61\x00\x00\x32\x64\x53\x00\x01\x00\x00\x32\xc8\x53'  #  | .S.a..2dS....2.S
    msg += b'\x13\x9c\x00\x00\x33\x2c\x53\x0f\xa0\x00\x00\x33\x90\x53\x00\x4f'  #  | ....3,S....3.S.O
    msg += b'\x00\x00\x33\xf4\x53\x00\x66\x00\x00\x34\x58\x53\x03\xe8\x00\x00'  #  | ..3.S.f..4XS....
    msg += b'\x34\xbc\x53\x04\x00\x00\x00\x35\x20\x53\x09\xc4\x00\x00\x35\x84'  #  | 4.S....5 S....5.
    msg += b'\x53\x07\xc6\x00\x00\x35\xe8\x53\x13\x8c\x00\x00\x36\x4c\x53\x12'  #  | S....5.S....6LS.
    msg += b'\x94\x00\x01\x38\x80\x53\x00\x02\x00\x01\x38\x81\x53\x00\x01\x00'  #  | ...8.S....8.S...
    msg += b'\x01\x38\x82\x53\x00\x01\x00\x01\x38\x83\x53\x00\x00\x00\x00\x00'  #  | .8.S....8.S.....
    msg += b'\x8b\x10\x52\x31\x37\x45\x37\x33\x30\x37\x30\x32\x31\x44\x30\x30'  #  | ..R17E7307021D00
    msg += b'\x36\x41\x91\x04\x01\x90\x00\x01\x10\x54\x31\x37\x45\x37\x33\x30'  #  | 6A.......T17E730
    msg += b'\x37\x30\x32\x31\x44\x30\x30\x36\x41\x01\x00\x00\x01\x91\xa3\xfe'  #  | 7021D006A.......
    msg += b'\xb3\x80\x00\x00\x00\x06\x00\x00\x00\x0a\x54\x08\x4d\x69\x63\x72'  #  | ..........T.Micr
    msg += b'\x6f\x69\x6e\x76\x00\x00\x00\x14\x54\x04\x54\x53\x55\x4e\x00\x00'  #  | oinv....T.TSUN..
    msg += b'\x00\x1e\x54\x07\x56\x35\x2e\x31\x2e\x30\x39\x00\x00\x00\x28\x54'  #  | ..T.V5.1.09...(T
    msg += b'\x10\x54\x31\x37\x45\x37\x33\x30\x37\x30\x32\x31\x44\x30\x30\x36'  #  | .T17E7307021D006
    msg += b'\x41\x00\x00\x00\x32\x54\x0a\x54\x53\x4f\x4c\x2d\x4d\x53\x36\x30'  #  | A...2T.TSOL-MS60
    msg += b'\x30\x00\x00\x00\x3c\x54\x05\x41\x2c\x42\x2c\x43'                  #  | 0...<T.A,B,C'
    return msg

def test_read_message(msg_contact_info):
    Config.act_config = {'tsun':{'enabled': True}}
    m = MemoryStream(msg_contact_info, (0,))
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == None
    assert int(m.ctrl)==145
    assert m.msg_id==0 
    assert m.header_len==23
    assert m.data_len==25
    assert m.ifc.rx_get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.ifc.fwd_fifo.get()==b''
    m.close()

def test_read_message_twice(config_no_tsun_inv1, msg_inverter_ind):
    _ = config_no_tsun_inv1
    m = MemoryStream(msg_inverter_ind, (0,))
    m.append_msg(msg_inverter_ind)
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 2
    assert m.msg_recvd[0]['ctrl']==145
    assert m.msg_recvd[0]['msg_id']==4
    assert m.msg_recvd[0]['header_len']==23
    assert m.msg_recvd[0]['data_len']==120
    assert m.msg_recvd[1]['ctrl']==145
    assert m.msg_recvd[1]['msg_id']==4
    assert m.msg_recvd[1]['header_len']==23
    assert m.msg_recvd[1]['data_len']==120
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert m.ifc.fwd_fifo.get()==b''
    m.close()
 
def test_read_message_long_id(msg_contact_info_long_id):
    m = MemoryStream(msg_contact_info_long_id, (23,24))
    m.read()        # read 23 bytes, one is missing
    assert not m.header_valid  # must be invalid, since header not complete
    assert m.msg_count == 0
    m.read()        # read the missing byte
    assert m.header_valid      # must be valid, since header is complete but not the msg
    assert m.msg_count == 0
    assert m.id_str == b"R1700000000000011" 
    assert m.unique_id == 0
    assert int(m.ctrl)==145
    assert m.msg_id==0 
    assert m.header_len==24
    assert m.data_len==25
    m.read()        # try to read rest of message, but there is no chunk available
    assert m.header_valid      # must be valid, since header is complete but not the msg
    assert m.msg_count == 0
    m.close()
    

def test_read_message_in_chunks(msg_contact_info):
    Config.act_config = {'tsun':{'enabled': True}}
    m = MemoryStream(msg_contact_info, (4,23,0))
    m.read()        # read 4 bytes, header incomplere
    assert not m.header_valid  # must be invalid, since header not complete
    assert m.msg_count == 0
    m.read()        # read missing bytes for complete header
    assert m.header_valid      # must be valid, since header is complete but not the msg
    assert m.msg_count == 0
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 0
    assert int(m.ctrl)==145
    assert m.msg_id==0 
    assert m.header_len==23
    assert m.data_len==25
    m.read()    # read rest of message
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    m.close()
    
def test_read_message_in_chunks2(msg_contact_info):
    Config.act_config = {'tsun':{'enabled': True}}
    m = MemoryStream(msg_contact_info, (4,10,0))
    m.read()        # read 4 bytes, header incomplere
    assert not m.header_valid
    assert m.msg_count == 0
    m.read()        # read 6 more bytes, header incomplere
    assert not m.header_valid
    assert m.msg_count == 0
    m.read()        # read rest of message
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.header_len==23
    assert m.data_len==25
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == None
    assert int(m.ctrl)==145
    assert m.msg_id==0 
    assert m.msg_count == 1
    m.read()         # read rest of message
    assert m.msg_count == 1
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    m.close()

def test_read_two_messages(config_tsun_allow_all, msg2_contact_info,msg_contact_rsp,msg_contact_rsp2):
    _ = config_tsun_allow_all
    m = MemoryStream(msg2_contact_info, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 2
    assert m.id_str == b"R170000000000002" 
    assert m.unique_id == 'R170000000000002'
    m.contact_name = b'solarhub'
    m.contact_mail = b'solarhub@123456'
    assert m.msg_recvd[0]['ctrl']==145
    assert m.msg_recvd[0]['msg_id']==0
    assert m.msg_recvd[0]['header_len']==23
    assert m.msg_recvd[0]['data_len']==25
    assert m.msg_recvd[1]['ctrl']==145
    assert m.msg_recvd[1]['msg_id']==0
    assert m.msg_recvd[1]['header_len']==23
    assert m.msg_recvd[1]['data_len']==25
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==msg_contact_rsp + msg_contact_rsp2
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0

    m.ifc.tx_clear() # clear send buffer for next test    
    m.contact_name = b'solarhub'
    m.contact_mail = b'solarhub@123456'
    m._init_new_client_conn()
    assert m.ifc.tx_fifo.get()==b'\x00\x00\x00,\x10R170000000000002\x91\x00\x08solarhub\x0fsolarhub@123456'
    m.close()

def test_conttact_req(config_tsun_allow_all, msg_contact_info, msg_contact_rsp):
    _ = config_tsun_allow_all
    m = MemoryStream(msg_contact_info, (0,))
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.contact_name == b'solarhub'
    assert m.contact_mail == b'solarhub@123456'
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==0 
    assert m.header_len==23
    assert m.data_len==25
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==msg_contact_rsp
    m.close()

def test_contact_broken_req(config_tsun_allow_all, msg_contact_info_broken, msg_contact_rsp):
    _ = config_tsun_allow_all
    m = MemoryStream(msg_contact_info_broken, (0,))
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.contact_name == b''
    assert m.contact_mail == b''
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==0 
    assert m.header_len==23
    assert m.data_len==23
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==msg_contact_rsp
    m.close()

def test_conttact_req(config_tsun_allow_all, msg_contact_info, msg_contact_rsp):
    _ = config_tsun_allow_all
    m = MemoryStream(msg_contact_info, (0,))
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.contact_name == b'solarhub'
    assert m.contact_mail == b'solarhub@123456'
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==0 
    assert m.header_len==23
    assert m.data_len==25
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==msg_contact_rsp
    m.close()

def test_contact_broken_req(config_tsun_allow_all, msg_contact_info_broken, msg_contact_rsp):
    _ = config_tsun_allow_all
    m = MemoryStream(msg_contact_info_broken, (0,))
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.contact_name == b''
    assert m.contact_mail == b''
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==0 
    assert m.header_len==23
    assert m.data_len==23
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==msg_contact_rsp
    m.close()

def test_msg_contact_resp(config_tsun_inv1, msg_contact_rsp):
    _ = config_tsun_inv1
    m = MemoryStream(msg_contact_rsp, (0,), False)
    m.await_conn_resp_cnt = 1
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.await_conn_resp_cnt == 0
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==0
    assert m.header_len==23
    assert m.data_len==1
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_contact_resp_2(config_tsun_inv1, msg_contact_rsp):
    _ = config_tsun_inv1
    m = MemoryStream(msg_contact_rsp, (0,), False)
    m.await_conn_resp_cnt = 0
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.await_conn_resp_cnt == 0
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==0
    assert m.header_len==23
    assert m.data_len==1
    assert m.ifc.fwd_fifo.get()==msg_contact_rsp
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_contact_resp_3(config_tsun_inv1, msg_contact_rsp):
    _ = config_tsun_inv1
    m = MemoryStream(msg_contact_rsp, (0,), True)
    m.await_conn_resp_cnt = 0
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.await_conn_resp_cnt == 0
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==0
    assert m.header_len==23
    assert m.data_len==1
    assert m.ifc.fwd_fifo.get()==msg_contact_rsp
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_contact_invalid(config_tsun_inv1, msg_contact_invalid):
    _ = config_tsun_inv1
    m = MemoryStream(msg_contact_invalid, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==147
    assert m.msg_id==0
    assert m.header_len==23
    assert m.data_len==1
    assert m.ifc.fwd_fifo.get()==msg_contact_invalid
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 1
    m.close()

def test_msg_get_time(config_tsun_inv1, msg_get_time):
    _ = config_tsun_inv1
    m = MemoryStream(msg_get_time, (0,))
    m.state = State.up
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==34
    assert m.header_len==23
    assert m.ts_offset==0
    assert m.data_len==0
    assert m.state==State.pend
    assert m.ifc.fwd_fifo.get()==msg_get_time
    assert m.ifc.tx_fifo.get()==b'\x00\x00\x00\x1b\x10R170000000000001\x91"\x00\x00\x01\x89\xc6,_\x00'
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_get_time_autark(config_no_tsun_inv1, msg_get_time):
    _ = config_no_tsun_inv1
    m = MemoryStream(msg_get_time, (0,))
    m.state = State.received
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==34
    assert m.header_len==23
    assert m.ts_offset==0
    assert m.data_len==0
    assert m.state==State.received
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==bytearray(b'\x00\x00\x00\x1b\x10R170000000000001\x91"\x00\x00\x01\x89\xc6,_\x00')
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_time_resp(config_tsun_inv1, msg_time_rsp):
    # test if ts_offset will be set on client and server side
    _ = config_tsun_inv1
    m = MemoryStream(msg_time_rsp, (0,), False)
    s = MemoryStream(b'', (0,), True)
    assert s.ts_offset==0
    m.ifc.remote.stream = s
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==34
    assert m.header_len==23
    assert m.ts_offset==3600000
    assert s.ts_offset==3600000
    assert m.data_len==8
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.ifc.remote.stream = None
    s.close()
    m.close()

def test_msg_time_resp_autark(config_no_tsun_inv1, msg_time_rsp):
    _ = config_no_tsun_inv1
    m = MemoryStream(msg_time_rsp, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==34
    assert m.header_len==23
    assert m.ts_offset==3600000
    assert m.data_len==8
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_time_inv_resp(config_tsun_inv1, msg_time_rsp_inv):
    _ = config_tsun_inv1
    m = MemoryStream(msg_time_rsp_inv, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==34
    assert m.header_len==23
    assert m.ts_offset==0
    assert m.data_len==4
    assert m.ifc.fwd_fifo.get()==msg_time_rsp_inv
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_time_invalid(config_tsun_inv1, msg_time_invalid):
    _ = config_tsun_inv1
    m = MemoryStream(msg_time_invalid, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==148
    assert m.msg_id==34
    assert m.header_len==23
    assert m.ts_offset==0
    assert m.data_len==0
    assert m.ifc.fwd_fifo.get()==msg_time_invalid
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 1
    m.close()

def test_msg_time_invalid_autark(config_no_tsun_inv1, msg_time_invalid):
    _ = config_no_tsun_inv1
    m = MemoryStream(msg_time_invalid, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==148
    assert m.msg_id==34
    assert m.ts_offset==0
    assert m.header_len==23
    assert m.data_len==0
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 1
    m.close()

def test_msg_act_time(config_no_modbus_poll, msg_act_time, msg_act_time_ack):
    _ = config_no_modbus_poll
    m = MemoryStream(msg_act_time, (0,))
    m.ts_offset=0
    m.mb_timeout = 124
    m.db.set_db_def_value(Register.POLLING_INTERVAL, 125)
    m.state = State.received
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==153
    assert m.ts_offset==0
    assert m.header_len==23
    assert m.data_len==9
    assert m.state == State.up
    assert m.ifc.fwd_fifo.get()==msg_act_time
    assert m.ifc.tx_fifo.get()==msg_act_time_ack
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert 125 == m.db.get_db_value(Register.POLLING_INTERVAL, 0)
    m.close()

def test_msg_act_time2(config_tsun_inv1, msg_act_time, msg_act_time_ack):
    _ = config_tsun_inv1
    m = MemoryStream(msg_act_time, (0,))
    m.ts_offset=0
    m.modbus_polling = True
    m.mb_timeout = 123
    m.db.set_db_def_value(Register.POLLING_INTERVAL, 125)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==153
    assert m.ts_offset==0
    assert m.header_len==23
    assert m.data_len==9
    assert m.ifc.fwd_fifo.get()==msg_act_time
    assert m.ifc.tx_fifo.get()==msg_act_time_ack
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert 123 == m.db.get_db_value(Register.POLLING_INTERVAL, 0)
    m.close()

def test_msg_act_time_ofs(config_tsun_inv1, msg_act_time, msg_act_time_ofs, msg_act_time_ack):
    _ = config_tsun_inv1
    m = MemoryStream(msg_act_time, (0,))
    m.ts_offset=3600
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==153
    assert m.ts_offset==3600
    assert m.header_len==23
    assert m.data_len==9
    assert m.ifc.fwd_fifo.get()==msg_act_time_ofs
    assert m.ifc.tx_fifo.get()==msg_act_time_ack
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_act_time_ofs2(config_tsun_inv1, msg_act_time, msg_act_time_ofs, msg_act_time_ack):
    _ = config_tsun_inv1
    m = MemoryStream(msg_act_time_ofs, (0,))
    m.ts_offset=-3600
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==153
    assert m.ts_offset==-3600
    assert m.header_len==23
    assert m.data_len==9
    assert m.ifc.fwd_fifo.get()==msg_act_time
    assert m.ifc.tx_fifo.get()==msg_act_time_ack
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_act_time_autark(config_no_tsun_inv1, msg_act_time, msg_act_time_ack):
    _ = config_no_tsun_inv1
    m = MemoryStream(msg_act_time, (0,))
    m.ts_offset=0
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==153
    assert m.ts_offset==0
    assert m.header_len==23
    assert m.data_len==9
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==msg_act_time_ack
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_act_time_ack(config_tsun_inv1, msg_act_time_ack):
    _ = config_tsun_inv1
    m = MemoryStream(msg_act_time_ack, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==153
    assert m.msg_id==153
    assert m.header_len==23
    assert m.data_len==1
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_act_time_cmd(config_tsun_inv1, msg_act_time_cmd):
    _ = config_tsun_inv1
    m = MemoryStream(msg_act_time_cmd, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==112
    assert m.msg_id==153
    assert m.header_len==23
    assert m.data_len==1
    assert m.ifc.fwd_fifo.get()==msg_act_time_cmd
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 1
    m.close()

def test_msg_act_time_inv(config_tsun_inv1, msg_act_time_inv):
    _ = config_tsun_inv1
    m = MemoryStream(msg_act_time_inv, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==153
    assert m.header_len==23
    assert m.data_len==8
    assert m.ifc.fwd_fifo.get()==msg_act_time_inv
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_cntrl_ind(config_tsun_inv1, msg_controller_ind, msg_controller_ind_ts_offs, msg_controller_ack):
    _ = config_tsun_inv1
    m = MemoryStream(msg_controller_ind, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==113
    assert m.header_len==23
    assert m.data_len==284
    m.ts_offset = 0
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.peek()==msg_controller_ind
    m.ts_offset = -4096
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.get()==msg_controller_ind_ts_offs
    assert m.ifc.tx_fifo.get()==msg_controller_ack
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_cntrl_ack(config_tsun_inv1, msg_controller_ack):
    _ = config_tsun_inv1
    m = MemoryStream(msg_controller_ack, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==153
    assert m.msg_id==113
    assert m.header_len==23
    assert m.data_len==1
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_cntrl_invalid(config_tsun_inv1, msg_controller_invalid):
    _ = config_tsun_inv1
    m = MemoryStream(msg_controller_invalid, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==146
    assert m.msg_id==113
    assert m.header_len==23
    assert m.data_len==1
    m.ts_offset = 0
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.peek()==msg_controller_invalid
    m.ts_offset = -4096
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.get()==msg_controller_invalid
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 1
    m.close()

def test_msg_inv_ind(config_tsun_inv1, msg_inverter_ind, msg_inverter_ind_ts_offs, msg_inverter_ack):
    _ = config_tsun_inv1
    tracer.setLevel(logging.DEBUG)
    m = MemoryStream(msg_inverter_ind, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==4
    assert m.header_len==23
    assert m.data_len==120
    m.ts_offset = 0
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.peek()==msg_inverter_ind
    m.ts_offset = +256
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.get()==msg_inverter_ind_ts_offs
    assert m.ifc.tx_fifo.get()==msg_inverter_ack
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_inv_ind1(config_tsun_inv1, msg_inverter_ind2, msg_inverter_ind_ts_offs, msg_inverter_ack):
    _ = config_tsun_inv1
    tracer.setLevel(logging.DEBUG)
    m = MemoryStream(msg_inverter_ind2, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['Invalid_Data_Type'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['Invalid_Data_Type'] == 0
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==4
    assert m.header_len==23
    assert m.data_len==1263
    m.ts_offset = 0
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.get()==msg_inverter_ind2
    assert m.ifc.tx_fifo.get()==msg_inverter_ack
    assert m.db.get_db_value(Register.TS_GRID) == 1691243349
    m.close()

def test_msg_inv_ind2(config_tsun_inv1, msg_inverter_ind_new, msg_inverter_ind_ts_offs, msg_inverter_ack):
    _ = config_tsun_inv1
    tracer.setLevel(logging.DEBUG)
    m = MemoryStream(msg_inverter_ind_new, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['Invalid_Data_Type'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['Invalid_Data_Type'] == 0
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==4
    assert m.header_len==23
    assert m.data_len==1165
    m.ts_offset = 0
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.get()==msg_inverter_ind_new
    assert m.ifc.tx_fifo.get()==msg_inverter_ack
    assert m.db.get_db_value(Register.INVERTER_STATUS) == None
    assert m.db.get_db_value(Register.TS_GRID) == None
    m.db.db['grid'] = {'Output_Power': 100}
    m.close()
    assert m.db.get_db_value(Register.INVERTER_STATUS) == None

def test_msg_inv_ind3(config_tsun_inv1, msg_inverter_ind_0w, msg_inverter_ack):
    '''test that after close the invert_status will be resetted if the grid power is <2W'''
    _ = config_tsun_inv1
    tracer.setLevel(logging.DEBUG)
    m = MemoryStream(msg_inverter_ind_0w, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['Invalid_Data_Type'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['Invalid_Data_Type'] == 0
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==4
    assert m.header_len==23
    assert m.data_len==1263
    m.ts_offset = 0
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.get()==msg_inverter_ind_0w
    assert m.ifc.tx_fifo.get()==msg_inverter_ack
    assert m.db.get_db_value(Register.INVERTER_STATUS) == 1
    assert isclose(m.db.db['grid']['Output_Power'], 0.5)
    m.close()
    assert m.db.get_db_value(Register.INVERTER_STATUS) == 0


def test_msg_inv_ack(config_tsun_inv1, msg_inverter_ack):
    _ = config_tsun_inv1
    tracer.setLevel(logging.ERROR)

    m = MemoryStream(msg_inverter_ack, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==153
    assert m.msg_id==4
    assert m.header_len==23
    assert m.data_len==1
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

def test_msg_inv_invalid(config_tsun_inv1, msg_inverter_invalid):
    _ = config_tsun_inv1
    m = MemoryStream(msg_inverter_invalid, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==146
    assert m.msg_id==4
    assert m.header_len==23
    assert m.data_len==1
    m.ts_offset = 0
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.peek()==msg_inverter_invalid
    m.ts_offset = 256
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.get()==msg_inverter_invalid
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 1
    m.close()

def test_msg_ota_req(config_tsun_inv1, msg_ota_req):
    _ = config_tsun_inv1
    m = MemoryStream(msg_ota_req, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['OTA_Start_Msg'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==112
    assert m.msg_id==19
    assert m.header_len==23
    assert m.data_len==259
    m.ts_offset = 0
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.peek()==msg_ota_req
    m.ts_offset = 4096
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.get()==msg_ota_req
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['OTA_Start_Msg'] == 1
    m.close()

def test_msg_ota_ack(config_tsun_inv1, msg_ota_ack):
    _ = config_tsun_inv1
    tracer.setLevel(logging.ERROR)

    m = MemoryStream(msg_ota_ack, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['OTA_Start_Msg'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==19
    assert m.header_len==23
    assert m.data_len==1
    m.ts_offset = 0
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.peek()==msg_ota_ack
    m.ts_offset = 256
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.get()==msg_ota_ack
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['OTA_Start_Msg'] == 0
    m.close()

def test_msg_ota_invalid(config_tsun_inv1, msg_ota_invalid):
    _ = config_tsun_inv1
    m = MemoryStream(msg_ota_invalid, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['OTA_Start_Msg'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==153
    assert m.msg_id==19
    assert m.header_len==23
    assert m.data_len==1
    m.ts_offset = 0
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.fwd_fifo.peek()==msg_ota_invalid
    m.ts_offset = 4096
    assert m.ifc.fwd_fifo.get()==msg_ota_invalid
    m._update_header(m.ifc.fwd_fifo.peek())
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 1
    assert m.db.stat['proxy']['OTA_Start_Msg'] == 0
    m.close()

def test_msg_unknown(config_tsun_inv1, msg_unknown):
    _ = config_tsun_inv1
    m = MemoryStream(msg_unknown, (0,), False)
    m.db.stat['proxy']['Unknown_Msg'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==23
    assert m.header_len==23
    assert m.data_len==4
    assert m.ifc.fwd_fifo.get()==msg_unknown
    assert m.ifc.tx_fifo.get()==b''
    assert 1 == m.db.stat['proxy']['Unknown_Msg']
    m.close()

def test_ctrl_byte():
    c = Control(0x70)
    assert not c.is_ind()
    assert not c.is_resp()    
    assert c.is_req()
    c = Control(0x91)
    assert not c.is_req()
    assert c.is_ind()
    assert not c.is_resp()    
    c = Control(0x99)
    assert not c.is_req()
    assert not c.is_ind()
    assert c.is_resp()    

    
def test_msg_iterator():
    m1 = Talent(('test1.local', 1234), ifc=AsyncIfcImpl(), server_side=True)
    m2 = Talent(('test2.local', 1234), ifc=AsyncIfcImpl(), server_side=True)
    m3 = Talent(('test3.local', 1234), ifc=AsyncIfcImpl(), server_side=True)
    m3.close()
    del m3
    test1 = 0
    test2 = 0
    for key in Talent:
        if key == m1:
            test1+=1
        elif key == m2:
            test2+=1
        elif type(key) != Talent:
            continue
        else:
            assert False
    assert test1 == 1
    assert test2 == 1

def test_timestamp_cnv():
    '''test converting inverter timestamps into utc'''
    m = MemoryStream(b'')
    ts = 1722645998453    # Saturday, 3. August 2024 00:46:38.453 (GMT+2:00)
    utc =1722638798.453   # GMT: Friday, 2. August 2024 22:46:38.453
    assert isclose(utc, m._utcfromts(ts))

    ts = 1691246944000    # Saturday, 5. August 2023 14:49:04 (GMT+2:00)
    utc =1691239744.0     # GMT: Saturday, 5. August 2023 12:49:04
    assert isclose(utc, m._utcfromts(ts))

    ts = 1704152544000    # Monday, 1. January 2024 23:42:24 (GMT+1:00)
    utc =1704148944.0     # GMT: Monday, 1. January 2024 22:42:24
    assert isclose(utc, m._utcfromts(ts))

    m.close()

def test_proxy_counter():
    Infos.stat['proxy']['Modbus_Command'] = 1
 
    m = MemoryStream(b'')
    m.id_str = b"R170000000000001" 
    c = m.createClientStream(b'')

    assert m.new_data == {}
    m.db.stat['proxy']['Unknown_Msg'] = 0
    c.db.stat['proxy']['Unknown_Msg'] = 0
    Infos.new_stat_data['proxy'] =  False

    m.inc_counter('Unknown_Msg')
    m.close()
    m = MemoryStream(b'')
   
    assert m.new_data == {}
    assert Infos.new_stat_data == {'proxy': True}
    assert m.db.new_stat_data == {'proxy': True}
    assert c.db.new_stat_data == {'proxy': True}
    assert 1 == m.db.stat['proxy']['Unknown_Msg']
    assert 1 == c.db.stat['proxy']['Unknown_Msg']
    Infos.new_stat_data['proxy'] =  False

    c.inc_counter('Unknown_Msg')
    assert m.new_data == {}
    assert Infos.new_stat_data == {'proxy': True}
    assert m.db.new_stat_data == {'proxy': True}
    assert c.db.new_stat_data == {'proxy': True}
    assert 2 == m.db.stat['proxy']['Unknown_Msg']
    assert 2 == c.db.stat['proxy']['Unknown_Msg']
    Infos.new_stat_data['proxy'] =  False

    c.inc_counter('Modbus_Command')
    assert m.new_data == {}
    assert Infos.new_stat_data == {'proxy': True}
    assert m.db.new_stat_data == {'proxy': True}
    assert c.db.new_stat_data == {'proxy': True}
    assert 2 == m.db.stat['proxy']['Modbus_Command']
    assert 2 == c.db.stat['proxy']['Modbus_Command']

    Infos.new_stat_data['proxy'] =  False
    m.dec_counter('Unknown_Msg')
    assert m.new_data == {}
    assert Infos.new_stat_data == {'proxy': True}
    assert 1 == m.db.stat['proxy']['Unknown_Msg']
    m.close()

def test_msg_modbus_req(config_tsun_inv1, msg_modbus_cmd):
    _ = config_tsun_inv1
    m = MemoryStream(b'')
    m.id_str = b"R170000000000001" 
    m.state = State.up

    c = m.createClientStream(msg_modbus_cmd)
    
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['Modbus_Command'] = 0
    m.db.stat['proxy']['Invalid_Msg_Format'] = 0
    c.read()         # read complete msg, and dispatch msg
    assert not c.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert c.msg_count == 1
    assert c.id_str == b"R170000000000001" 
    assert c.unique_id == 'R170000000000001'
    assert int(c.ctrl)==112
    assert c.msg_id==119
    assert c.header_len==23
    assert c.data_len==13
    assert c.ifc.fwd_fifo.get()==b''
    assert c.ifc.tx_fifo.get()==b''
    assert m.id_str == b"R170000000000001" 
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.sent_pdu == msg_modbus_cmd
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['Modbus_Command'] == 1
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

def test_msg_modbus_req2(config_tsun_inv1, msg_modbus_cmd):
    _ = config_tsun_inv1
    m = MemoryStream(b'')
    m.id_str = b"R170000000000001" 

    c = m.createClientStream(msg_modbus_cmd)
    
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['Modbus_Command'] = 0
    m.db.stat['proxy']['Invalid_Msg_Format'] = 0
    c.read()         # read complete msg, and dispatch msg
    assert not c.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert c.msg_count == 1
    assert c.id_str == b"R170000000000001" 
    assert c.unique_id == 'R170000000000001'
    assert int(c.ctrl)==112
    assert c.msg_id==119
    assert c.header_len==23
    assert c.data_len==13
    assert c.ifc.fwd_fifo.get()==b''
    assert c.ifc.tx_fifo.get()==b''
    assert m.id_str == b"R170000000000001" 
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.sent_pdu == b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['Modbus_Command'] == 1
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 0
    m.close()

def test_msg_modbus_req3(config_tsun_inv1, msg_modbus_cmd_crc_err):
    _ = config_tsun_inv1
    m = MemoryStream(b'')
    m.id_str = b"R170000000000001" 
    c = m.createClientStream(msg_modbus_cmd_crc_err)
    
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['Modbus_Command'] = 0
    m.db.stat['proxy']['Invalid_Msg_Format'] = 0
    c.read()         # read complete msg, and dispatch msg
    assert not c.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert c.msg_count == 1
    assert c.id_str == b"R170000000000001" 
    assert c.unique_id == 'R170000000000001'
    assert int(c.ctrl)==112
    assert c.msg_id==119
    assert c.header_len==23
    assert c.data_len==13
    assert c.ifc.fwd_fifo.get()==b''
    assert c.ifc.tx_fifo.get()==b''
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.sent_pdu ==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['Modbus_Command'] == 0
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 1
    m.close()

def test_msg_modbus_rsp1(config_tsun_inv1, msg_modbus_rsp):
    '''Modbus response without a valid Modbus request must be dropped'''
    _ = config_tsun_inv1
    m = MemoryStream(msg_modbus_rsp)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['Modbus_Command'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==119
    assert m.header_len==23
    assert m.data_len==13
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['Modbus_Command'] == 0
    m.close()

def test_msg_modbus_cloud_rsp(config_tsun_inv1, msg_modbus_rsp):
    '''Modbus response from TSUN without a valid Modbus request must be dropped'''
    _ = config_tsun_inv1
    m = MemoryStream(msg_modbus_rsp, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['Unknown_Msg'] = 0
    m.db.stat['proxy']['Modbus_Command'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==119
    assert m.header_len==23
    assert m.data_len==13
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Msg'] == 1
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['Modbus_Command'] == 0
    m.close()

def test_msg_modbus_rsp2(config_tsun_inv1, msg_modbus_rsp20):
    '''Modbus response with a valid Modbus request must be forwarded'''
    _ = config_tsun_inv1
    m = MemoryStream(msg_modbus_rsp20)
    m.append_msg(msg_modbus_rsp20)

    m.mb.rsp_handler = m.msg_forward
    m.mb.last_addr = 1
    m.mb.last_fcode = 3
    m.mb.last_len = 20
    m.mb.last_reg = 0x3008
    m.mb.req_pend = True
    m.mb.err = 0

    assert m.db.db == {}
    m.new_data['inverter'] = False

    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.mb.err == 5
    assert m.msg_count == 2
    assert m.ifc.fwd_fifo.get()==msg_modbus_rsp20
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.db == {'collector': {'Serial_Number': 'R170000000000001'}, 'inverter': {'Version': 'V5.1.09', 'Rated_Power': 300}, 'grid': {'Timestamp': m._utc(), 'Voltage': 225.9, 'Current': 0.41, 'Frequency': 49.99, 'Output_Power': 94.8}, 'env': {'Inverter_Temp': 22}, 'input': {'Timestamp': m._utc(), 'pv1': {'Voltage': 0.8, 'Current': 0.0, 'Power': 0.0}, 'pv2': {'Voltage': 34.5, 'Current': 2.89, 'Power': 99.8}, 'pv3': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}, 'pv4': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}}}
    assert m.db.get_db_value(Register.VERSION) == 'V5.1.09'
    assert m.db.get_db_value(Register.TS_GRID) == m._utc()
    assert m.new_data['inverter'] == True

    m.close()

def test_msg_modbus_rsp3(config_tsun_inv1, msg_modbus_rsp21):
    '''Modbus response with a valid Modbus request must be forwarded'''
    _ = config_tsun_inv1
    m = MemoryStream(msg_modbus_rsp21)
    m.append_msg(msg_modbus_rsp21)

    m.mb.rsp_handler = m.msg_forward
    m.mb.last_addr = 1
    m.mb.last_fcode = 3
    m.mb.last_len = 20
    m.mb.last_reg = 0x3008
    m.mb.req_pend = True
    m.mb.err = 0

    assert m.db.db == {}
    m.new_data['inverter'] = False

    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.mb.err == 5
    assert m.msg_count == 2
    assert m.ifc.fwd_fifo.get()==msg_modbus_rsp21
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.db == {'collector': {'Serial_Number': 'R170000000000001'}, 'inverter': {'Version': 'V5.1.0E', 'Rated_Power': 300}, 'grid': {'Timestamp': m._utc(), 'Voltage': 225.9, 'Current': 0.41, 'Frequency': 49.99, 'Output_Power': 94.8}, 'env': {'Inverter_Temp': 22}, 'input': {'Timestamp': m._utc(), 'pv1': {'Voltage': 0.8, 'Current': 0.0, 'Power': 0.0}, 'pv2': {'Voltage': 34.5, 'Current': 2.89, 'Power': 99.8}, 'pv3': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}, 'pv4': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}}}
    assert m.db.get_db_value(Register.VERSION) == 'V5.1.0E'
    assert m.db.get_db_value(Register.TS_GRID) == m._utc()
    assert m.new_data['inverter'] == True

    m.close()

def test_msg_modbus_rsp4(config_tsun_inv1, msg_modbus_rsp21):
    '''Modbus response with a valid Modbus but no new values request must be forwarded'''
    _ = config_tsun_inv1
    m = MemoryStream(msg_modbus_rsp21)
 
    m.mb.rsp_handler = m.msg_forward
    m.mb.last_addr = 1
    m.mb.last_fcode = 3
    m.mb.last_len = 20
    m.mb.last_reg = 0x3008
    m.mb.req_pend = True
    m.mb.err = 0
    db_values = {'collector': {'Serial_Number': 'R170000000000001'}, 'inverter': {'Version': 'V5.1.0E', 'Rated_Power': 300}, 'grid': {'Timestamp': m._utc(), 'Voltage': 225.9, 'Current': 0.41, 'Frequency': 49.99, 'Output_Power': 94.8}, 'env': {'Inverter_Temp': 22}, 'input': {'Timestamp': m._utc(), 'pv1': {'Voltage': 0.8, 'Current': 0.0, 'Power': 0.0}, 'pv2': {'Voltage': 34.5, 'Current': 2.89, 'Power': 99.8}, 'pv3': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}, 'pv4': {'Voltage': 0.0, 'Current': 0.0, 'Power': 0.0}}}
    m.db.db  = db_values
    m.new_data['inverter'] = False

    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.mb.err == 0
    assert m.msg_count == 1
    assert m.ifc.fwd_fifo.get()==msg_modbus_rsp21
    assert m.modbus_elms == 19
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.db == db_values
    assert m.db.get_db_value(Register.VERSION) == 'V5.1.0E'
    assert m.db.get_db_value(Register.TS_GRID) == m._utc()
    assert m.new_data['inverter'] == False

    m.close()

def test_msg_modbus_rsp_new(config_tsun_inv1, msg_modbus_rsp20_new):
    '''Modbus response in new format with a valid Modbus request must be forwarded'''
    _ = config_tsun_inv1
    m = MemoryStream(msg_modbus_rsp20_new)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['Modbus_Command'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==135
    assert m.header_len==23
    assert m.data_len==107
    assert m.ifc.fwd_fifo.get()==b''
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['Modbus_Command'] == 0
    m.close()

def test_msg_modbus_invalid(config_tsun_inv1, msg_modbus_inv):
    _ = config_tsun_inv1
    m = MemoryStream(msg_modbus_inv, (0,), False)
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['Modbus_Command'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==153
    assert m.msg_id==119
    assert m.header_len==23
    assert m.data_len==13
    assert m.ifc.fwd_fifo.get()==msg_modbus_inv
    assert m.ifc.tx_fifo.get()==b''
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 1
    assert m.db.stat['proxy']['Modbus_Command'] == 0
    m.close()

def test_msg_modbus_fragment(config_tsun_inv1, msg_modbus_rsp20):
    _ = config_tsun_inv1
    # receive more bytes than expected (7 bytes from the next msg)
    m = MemoryStream(msg_modbus_rsp20+b'\x00\x00\x00\x45\x10\x52\x31', (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['Modbus_Command'] = 0
    m.mb.rsp_handler = m.msg_forward
    m.mb.last_addr = 1
    m.mb.last_fcode = 3
    m.mb.last_len = 20
    m.mb.last_reg = 0x3008
    m.mb.req_pend = True
    m.mb.err = 0

    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl) == 0x91
    assert m.msg_id == 119
    assert m.header_len == 23
    assert m.data_len == 50
    assert m.ifc.fwd_fifo.get()==msg_modbus_rsp20
    assert m.ifc.tx_fifo.get() == b''
    assert m.mb.err == 0
    assert m.modbus_elms == 20-1  # register 0x300d is unknown, so one value can't be mapped
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['Modbus_Command'] == 0
    m.close()

@pytest.mark.asyncio
async def test_msg_build_modbus_req(config_tsun_inv1, msg_modbus_cmd):
    _ = config_tsun_inv1
    m = MemoryStream(b'', (0,), True)
    m.id_str = b"R170000000000001" 
    await m.send_modbus_cmd(Modbus.WRITE_SINGLE_REG, 0x2008, 0, logging.DEBUG)
    assert 0 == m.send_msg_ofs
    assert m.ifc.fwd_fifo.get() == b''
    assert m.ifc.tx_fifo.get() == b''
    assert m.sent_pdu == b''

    m.state = State.up
    await m.send_modbus_cmd(Modbus.WRITE_SINGLE_REG, 0x2008, 0, logging.DEBUG)
    assert 0 == m.send_msg_ofs
    assert m.ifc.fwd_fifo.get() == b''
    assert m.ifc.tx_fifo.get() == b''
    assert m.sent_pdu == msg_modbus_cmd
    m.close()

def test_modbus_no_polling(config_no_modbus_poll, msg_get_time):
    _ = config_no_modbus_poll
    m = MemoryStream(msg_get_time, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.modbus_polling = False
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==34
    assert m.header_len==23
    assert m.ts_offset==0
    assert m.data_len==0
    assert m.ifc.fwd_fifo.get()==msg_get_time
    assert m.ifc.tx_fifo.get()==b'\x00\x00\x00\x1b\x10R170000000000001\x91"\x00\x00\x01\x89\xc6,_\x00'
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    m.close()

@pytest.mark.asyncio
async def test_modbus_polling(config_tsun_inv1, msg_inverter_ind):
    _ = config_tsun_inv1
    assert asyncio.get_running_loop()

    m = MemoryStream(msg_inverter_ind, (0,))
    assert asyncio.get_running_loop() == m.mb_timer.loop
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    assert m.mb_timer.tim == None
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert int(m.ctrl)==145
    assert m.msg_id==4
    assert m.header_len==23
    assert m.ts_offset==0
    assert m.data_len==120
    assert m.ifc.fwd_fifo.get()==msg_inverter_ind
    assert m.ifc.tx_fifo.get()==b'\x00\x00\x00\x14\x10R170000000000001\x99\x04\x01'
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0

    m.ifc.tx_clear() # clear send buffer for next test
    assert isclose(m.mb_timeout, 0.5)
    assert next(m.mb_timer.exp_count) == 0
    
    await asyncio.sleep(0.5)
    assert m.sent_pdu==b'\x00\x00\x00 \x10R170000000000001pw\x00\x01\xa3(\x08\x01\x030\x00\x000J\xde'
    assert m.ifc.tx_fifo.get()==b''
    
    await asyncio.sleep(0.5)
    assert m.sent_pdu==b'\x00\x00\x00 \x10R170000000000001pw\x00\x01\xa3(\x08\x01\x030\x00\x000J\xde'
    assert m.ifc.tx_fifo.get()==b''
    
    await asyncio.sleep(0.5)
    assert m.sent_pdu==b'\x00\x00\x00 \x10R170000000000001pw\x00\x01\xa3(\x08\x01\x03\x20\x00\x00`N"'
    assert m.ifc.tx_fifo.get()==b''
    assert next(m.mb_timer.exp_count) == 4
    m.close()

def test_broken_recv_buf(config_tsun_allow_all, broken_recv_buf):
    _ = config_tsun_allow_all
    m = MemoryStream(broken_recv_buf, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    assert m.db.stat['proxy']['Invalid_Data_Type'] == 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert m.msg_recvd[0]['ctrl']==145
    assert m.msg_recvd[0]['msg_id']==4
    assert m.msg_recvd[0]['header_len']==23
    assert m.msg_recvd[0]['data_len']==1263
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['Invalid_Data_Type'] == 1

    m.close()

def test_multiiple_recv_buf(config_tsun_allow_all, multiple_recv_buf):
    _ = config_tsun_allow_all
    m = MemoryStream(multiple_recv_buf, (0,))
    m.db.stat['proxy']['Unknown_Ctrl'] = 0
    m.db.stat['proxy']['Invalid_Msg_Format'] = 0
    m.db.stat['proxy']['Invalid_Data_Type'] = 0
    m.read()         # read complete msg, and dispatch msg
    assert not m.header_valid  # must be invalid, since msg was handled and buffer flushed
    assert m.msg_count == 1
    assert m.id_str == b"R170000000000001" 
    assert m.unique_id == 'R170000000000001'
    assert m.msg_recvd[0]['ctrl']==145
    assert m.msg_recvd[0]['msg_id']==4
    assert m.msg_recvd[0]['header_len']==23
    assert m.msg_recvd[0]['data_len']==1263
    assert m.db.stat['proxy']['Unknown_Ctrl'] == 0
    assert m.db.stat['proxy']['Invalid_Msg_Format'] == 1
    assert m.db.stat['proxy']['Invalid_Data_Type'] == 1

    m.close()

def test_timeout(config_tsun_inv1):
    _ = config_tsun_inv1
    m = MemoryStream(b'')
    assert m.state == State.init
    assert Talent.MAX_START_TIME == m._timeout()
    m.state = State.up
    m.modbus_polling = True
    assert Talent.MAX_INV_IDLE_TIME == m._timeout()
    m.modbus_polling = False
    assert Talent.MAX_DEF_IDLE_TIME == m._timeout()
    m.close()