Fix pymodbus.simulator. (#2773)

Author: janiversen

pymodbus/server/simulator/main.py

@@ -115,5 +115,9 @@ async def run_main(cmdline=None):
     task = ModbusSimulatorServer(**cmd_args)
     await task.run_forever()
 
+def main():  # pragma: no cover
+    """Run simulator."""
+    asyncio.run(run_main(), debug=True)
+
 if __name__ == "__main__":
     asyncio.run(run_main(), debug=True)

test/datastore/test_remote_datastore.py

@@ -99,5 +99,5 @@ def test_remote_device_set_values_wrong(self):
         """Test setting values against a remote device context."""
         client = mock.MagicMock()
         context = RemoteDeviceContext(client)
-        with pytest.raises(ValueError, match="setValues*"):
+        with pytest.raises(ValueError, match=r"setValues*"):
             context.setValues(0x01, 0, [1])

test/transport/test_serial.py

@@ -97,7 +97,7 @@ async def test_force_poll(self):
     async def test_write_force_poll(self):
         """Test write with poll."""
         SerialTransport.force_poll = True
-        transport, protocol = await create_serial_connection(
+        transport, _ = await create_serial_connection(
             asyncio.get_running_loop(), mock.Mock, "dummy"
         )
         await asyncio.sleep(0)