Fix comparing uncomparable in ItemUpdater

prusa/link/printer_adapter/structures/item_updater.py

@@ -104,6 +104,19 @@ def _default_write(value):
     def __repr__(self):
         return super().__repr__() + ": " + self.name
 
+    def __lt__(self, other):
+        if not isinstance(other, WatchedItem):
+            return NotImplemented
+        return self.name < other.name
+
+    def __eq__(self, other):
+        if not isinstance(other, WatchedItem):
+            return NotImplemented
+        return self.name == other.name
+
+    def __hash__(self):
+        return hash(self.name)
+
 
 class WatchedGroup(Watchable):
     """

tests/test_item_updater.py

@@ -4,6 +4,7 @@
 
 import logging
 import math
+from queue import PriorityQueue
 from time import sleep, time
 from unittest.mock import Mock
 
@@ -599,3 +600,15 @@ def test_group_updating(updater_instance: ItemUpdater):
         updater_instance.invalidate(item)
         item_gather.event.wait(THRESHOLD)
         item_gather.event.clear()
+
+
+def test_priority_queue():
+    """Tests that you can have two watched items with the same priority
+    and the app does not throw an error"""
+    item_1 = WatchedItem("item_1")
+    item_2 = WatchedItem("item_2")
+    queue = PriorityQueue()
+    queue.put((1, item_1))
+    queue.put((1, item_2))
+    queue.get()
+    queue.get()