From 298d7504fd00e41bd2854534ec8d178d66128796 Mon Sep 17 00:00:00 2001
From: epenet <6771947+epenet@users.noreply.github.com>
Date: Tue, 10 Jan 2023 16:42:28 +0100
Subject: [PATCH] Fix unknown data in qwikswitch (#85621)

---
 homeassistant/components/qwikswitch/sensor.py | 2 +-
 tests/components/qwikswitch/test_init.py      | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/homeassistant/components/qwikswitch/sensor.py b/homeassistant/components/qwikswitch/sensor.py
index 08ce2214b43..63cb2aa269f 100644
--- a/homeassistant/components/qwikswitch/sensor.py
+++ b/homeassistant/components/qwikswitch/sensor.py
@@ -68,7 +68,7 @@ class QSSensor(QSEntity, SensorEntity):
     @property
     def native_value(self):
         """Return the value of the sensor."""
-        return str(self._val)
+        return None if self._val is None else str(self._val)
 
     @property
     def unique_id(self):
diff --git a/tests/components/qwikswitch/test_init.py b/tests/components/qwikswitch/test_init.py
index 74e600b50e4..1f9efec92e7 100644
--- a/tests/components/qwikswitch/test_init.py
+++ b/tests/components/qwikswitch/test_init.py
@@ -7,6 +7,7 @@ import pytest
 from yarl import URL
 
 from homeassistant.components.qwikswitch import DOMAIN as QWIKSWITCH
+from homeassistant.const import STATE_UNKNOWN
 from homeassistant.setup import async_setup_component
 
 from tests.test_util.aiohttp import AiohttpClientMockResponse, MockLongPollSideEffect
@@ -105,7 +106,7 @@ async def test_sensor_device(hass, aioclient_mock, qs_devices):
     await hass.async_block_till_done()
 
     state_obj = hass.states.get("sensor.ss1")
-    assert state_obj.state == "None"
+    assert state_obj.state == STATE_UNKNOWN
 
     # receive command that sets the sensor value
     listen_mock.queue_response(