Make sure sensor state value is not None prior to trying to used the scaled value (#71189)

tests/components/deconz/test_sensor.py

@@ -785,6 +785,36 @@ async def test_add_new_sensor(hass, aioclient_mock, mock_deconz_websocket):
     assert hass.states.get("sensor.light_level_sensor").state == "999.8"
 
 
+BAD_SENSOR_DATA = [
+    ("ZHAConsumption", "consumption"),
+    ("ZHAHumidity", "humidity"),
+    ("ZHALightLevel", "lightlevel"),
+    ("ZHATemperature", "temperature"),
+]
+
+
+@pytest.mark.parametrize("sensor_type, sensor_property", BAD_SENSOR_DATA)
+async def test_dont_add_sensor_if_state_is_none(
+    hass, aioclient_mock, sensor_type, sensor_property
+):
+    """Test sensor with scaled data is not created if state is None."""
+    data = {
+        "sensors": {
+            "1": {
+                "name": "Sensor 1",
+                "type": sensor_type,
+                "state": {sensor_property: None},
+                "config": {},
+                "uniqueid": "00:00:00:00:00:00:00:00-00",
+            }
+        }
+    }
+    with patch.dict(DECONZ_WEB_REQUEST, data):
+        await setup_deconz_integration(hass, aioclient_mock)
+
+    assert len(hass.states.async_all()) == 0
+
+
 async def test_add_battery_later(hass, aioclient_mock, mock_deconz_websocket):
     """Test that a sensor without an initial battery state creates a battery sensor once state exist."""
     data = {