add check for empty updates

custom_components/moonraker/camera.py

@@ -115,27 +115,40 @@ async def async_camera_image(
         self, width: int | None = None, height: int | None = None
     ) -> bytes | None:
         """Return current camera image."""
+        _LOGGER.debug("Trying to get thumbnail ")
         if (
             self.coordinator.data["status"]["print_stats"]["state"]
             != PRINTSTATES.PRINTING.value
         ):
+            _LOGGER.debug("Not printing, no thumbnail")
             return None
 
         del width, height
 
         new_path = self.coordinator.data["thumbnails_path"]
+        _LOGGER.debug(f"Thumbnail new_path: {new_path}")
         if self._current_path == new_path and self._current_pic is not None:
+            _LOGGER.debug("no change in thumbnail, returning cached")
             return self._current_pic
 
         if new_path == "" or new_path is None:
             self._current_pic = None
             self._current_path = ""
+            _LOGGER.debug("Empty path, no thumbnail")
             return None
+
+        _LOGGER.debug(
+            f"Fetching new thumbnail: http://{self.url}/server/files/gcodes/{new_path}"
+        )
         response = await self._session.get(
             f"http://{self.url}/server/files/gcodes/{new_path}"
         )
 
         self._current_path = new_path
         self._current_pic = await response.read()
 
+        _LOGGER.debug(
+            f"Size of thumbnail: {self._current_pic.width} x {self._current_pic.height}"
+        )
+
         return self._current_pic

custom_components/moonraker/sensor.py

@@ -493,7 +493,6 @@ async def async_setup_machine_update_sensors(coordinator, entry, async_add_entit
     machine_status = await coordinator.async_fetch_data(METHODS.MACHINE_UPDATE_STATUS)
     if machine_status.get("error"):
         return
-
     coordinator.add_data_updater(_machine_update_updater)
     sensors = []
 
@@ -509,7 +508,10 @@ async def async_setup_machine_update_sensors(coordinator, entry, async_add_entit
                     entity_registry_enabled_default=False,
                 )
             )
-        else:
+        elif (
+            "version" in machine_status["version_info"][version_info]
+            and "remote_version" in machine_status["version_info"][version_info]
+        ):
             sensors.append(
                 MoonrakerSensorDescription(
                     key=f"machine_update_{version_info}",

tests/test_sensor.py

@@ -458,3 +458,20 @@ async def test_update_no_system_update(hass, get_machine_update_status):
     entity_registry = er.async_get(hass)
     entity = entity_registry.async_get("sensor.mainsail_machine_update_system")
     assert entity is None
+
+
+async def test_update_no_info_item(hass, get_machine_update_status):
+    """Test update available."""
+    get_machine_update_status["version_info"]["mainsail"] = {}
+
+    config_entry = MockConfigEntry(domain=DOMAIN, data=MOCK_CONFIG, entry_id="test")
+    config_entry.add_to_hass(hass)
+    assert await async_setup_entry(hass, config_entry)
+    await hass.async_block_till_done()
+
+    entity_registry = er.async_get(hass)
+    entity = entity_registry.async_get("sensor.mainsail_version_mainsail")
+    assert entity is None
+
+    entity = entity_registry.async_get("sensor.mainsail_machine_update_system")
+    assert entity is not None