add dcu_power topic and unit tests

app/tests/test_solarman.py

@@ -812,6 +812,15 @@ def dcu_data_rsp_msg():  # 0x1210
     msg += b'\x15'
     return msg
 
+@pytest.fixture
+def dcu_command_ind_msg():  # 0x4510
+    msg  = b'\xa5\x17\x00\x10\x45\x94\x02' +get_dcu_sn() +b'\x05\x26\x30'
+    msg += b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'           
+    msg += b'\x01\x01\x06\x01\x00\x01\x03\xe8'
+    msg += correct_checksum(msg)
+    msg += b'\x15'
+    return msg
+
 @pytest.fixture
 def config_tsun_allow_all():
     Config.act_config = {
@@ -2402,3 +2411,80 @@ async def test_proxy_at_blocked(my_loop, config_tsun_inv1, patch_open_connection
 
         assert Proxy.mqtt.key == 'tsun/inv1/at_resp'
         assert Proxy.mqtt.data == "+ok"
+
+@pytest.mark.asyncio
+async def test_dcu_cmd(my_loop, config_tsun_allow_all, dcu_dev_ind_msg, dcu_dev_rsp_msg, dcu_data_ind_msg, dcu_data_rsp_msg, dcu_command_ind_msg, at_command_rsp_msg):
+    _ = config_tsun_allow_all
+    m = MemoryStream(dcu_dev_ind_msg, (0,), True)
+    m.read()   # read device ind
+    assert m.control == 0x4110
+    assert str(m.seq) == '01:92'
+    assert m.ifc.tx_fifo.get()==dcu_dev_rsp_msg
+    assert m.ifc.fwd_fifo.get()==dcu_dev_ind_msg
+
+    m.send_dcu_cmd(b'\x01\x01\x06\x01\x00\x01\x03\xe8')
+    assert m.ifc.tx_fifo.get()==b''
+    assert m.ifc.fwd_fifo.get()==b''
+    assert m.sent_pdu == b''
+    assert str(m.seq) == '01:92'
+    assert Proxy.mqtt.key == ''
+    assert Proxy.mqtt.data == ""
+
+    m.append_msg(dcu_data_ind_msg)
+    m.read() # read inverter ind
+    assert m.control == 0x4210
+    assert str(m.seq) == '02:93'
+    assert m.ifc.tx_fifo.get()==dcu_data_rsp_msg
+    assert m.ifc.fwd_fifo.get()==dcu_data_ind_msg
+    
+    m.send_dcu_cmd(b'\x01\x01\x06\x01\x00\x01\x03\xe8')
+    assert m.ifc.fwd_fifo.get() == b''
+    assert m.ifc.tx_fifo.get()== b''
+    assert m.sent_pdu == dcu_command_ind_msg
+    m.sent_pdu = bytearray()
+
+    assert str(m.seq) == '02:94'
+    assert Proxy.mqtt.key == ''
+    assert Proxy.mqtt.data == ""
+
+    # m.append_msg(at_command_rsp_msg)
+    # m.read() # read at resp
+    # assert m.control == 0x1510
+    # assert str(m.seq) == '03:03'
+    # assert m.ifc.rx_get()==b''
+    # assert m.ifc.tx_fifo.get()==b''
+    # assert m.ifc.fwd_fifo.get()==b''
+    # assert Proxy.mqtt.key == 'tsun/at_resp'
+    # assert Proxy.mqtt.data == "+ok"
+    Proxy.mqtt.clear()  # clear last test result
+
+@pytest.mark.asyncio
+async def test_dcu_cmd_not_supported(my_loop, config_tsun_allow_all, device_ind_msg, device_rsp_msg, inverter_ind_msg, inverter_rsp_msg):
+    _ = config_tsun_allow_all
+    m = MemoryStream(device_ind_msg, (0,), True)
+    m.read()   # read device ind
+    assert m.control == 0x4110
+    assert str(m.seq) == '01:01'
+    assert m.ifc.tx_fifo.get()==device_rsp_msg
+    assert m.ifc.fwd_fifo.get()==device_ind_msg
+
+    m.send_dcu_cmd(b'\x01\x01\x06\x01\x00\x01\x03\xe8')
+    assert m.ifc.tx_fifo.get()==b''
+    assert m.ifc.fwd_fifo.get()==b''
+    assert m.sent_pdu == b''
+    assert str(m.seq) == '01:01'
+    assert Proxy.mqtt.key == ''
+    assert Proxy.mqtt.data == ""
+
+    m.append_msg(inverter_ind_msg)
+    m.read() # read inverter ind
+    assert m.control == 0x4210
+    assert str(m.seq) == '02:02'
+    assert m.ifc.tx_fifo.get()==inverter_rsp_msg
+    assert m.ifc.fwd_fifo.get()==inverter_ind_msg
+    
+    m.send_dcu_cmd(b'\x01\x01\x06\x01\x00\x01\x03\xe8')
+    assert m.ifc.fwd_fifo.get() == b''
+    assert m.ifc.tx_fifo.get()== b''
+    assert m.sent_pdu == b''
+    Proxy.mqtt.clear()  # clear last test result