Fix broken tests

dungeonbattle/entities/items.py

@@ -63,6 +63,14 @@ class Heart(Item):
         player.health = min(player.maxhealth, player.health + self.healing)
         self.map.remove_entity(self)
 
+    def save_state(self) -> dict:
+        """
+        Saves the state of the header into a dictionary
+        """
+        d = super().save_state()
+        d["healing"] = self.healing
+        return d
+
 
 class Bomb(Item):
     """
@@ -90,3 +98,12 @@ class Bomb(Item):
                 if abs(e.x - self.x) + abs(e.y - self.y) <= 1 and \
                         isinstance(e, FightingEntity):
                     e.take_damage(self, self.damage)
+
+    def save_state(self) -> dict:
+        """
+        Saves the state of the bomb into a dictionary
+        """
+        d = super().save_state()
+        d["exploding"] = self.exploding
+        d["damage"] = self.damage
+        return d