Set sensors to unknown when no next alarm is set in Sleep as Android (#150558)

homeassistant/components/sleep_as_android/sensor.py

@@ -85,6 +85,12 @@ class SleepAsAndroidSensorEntity(SleepAsAndroidEntity, RestoreSensor):
             ):
                 self._attr_native_value = label
 
+            if (
+                data[ATTR_EVENT] == "alarm_rescheduled"
+                and data.get(ATTR_VALUE1) is None
+            ):
+                self._attr_native_value = None
+
             self.async_write_ha_state()
 
     async def async_added_to_hass(self) -> None:

tests/components/sleep_as_android/test_sensor.py

@@ -122,3 +122,45 @@ async def test_webhook_sensor(
 
     assert (state := hass.states.get("sensor.sleep_as_android_alarm_label"))
     assert state.state == "label"
+
+
+async def test_webhook_sensor_alarm_unset(
+    hass: HomeAssistant,
+    config_entry: MockConfigEntry,
+    hass_client_no_auth: ClientSessionGenerator,
+) -> None:
+    """Test unsetting sensors if there is no next alarm."""
+
+    config_entry.add_to_hass(hass)
+    await hass.config_entries.async_setup(config_entry.entry_id)
+    await hass.async_block_till_done()
+
+    assert config_entry.state is ConfigEntryState.LOADED
+
+    client = await hass_client_no_auth()
+
+    response = await client.post(
+        "/api/webhook/webhook_id",
+        json={
+            "event": "alarm_rescheduled",
+            "value1": "1582719660934",
+            "value2": "label",
+        },
+    )
+    assert response.status == HTTPStatus.NO_CONTENT
+
+    assert (state := hass.states.get("sensor.sleep_as_android_next_alarm"))
+    assert state.state == "2020-02-26T12:21:00+00:00"
+
+    assert (state := hass.states.get("sensor.sleep_as_android_alarm_label"))
+    assert state.state == "label"
+
+    response = await client.post(
+        "/api/webhook/webhook_id",
+        json={"event": "alarm_rescheduled"},
+    )
+    assert (state := hass.states.get("sensor.sleep_as_android_next_alarm"))
+    assert state.state == STATE_UNKNOWN
+
+    assert (state := hass.states.get("sensor.sleep_as_android_alarm_label"))
+    assert state.state == STATE_UNKNOWN