add some checks for empty responses and tests

tale/llm/responses/WorldCreaturesResponse.py

@@ -3,5 +3,5 @@
 class WorldCreaturesResponse():
 
     def __init__(self, response: dict = {}):
-        self.creatures = response["creatures"]
+        self.creatures = response.get("creatures", [])
         self.valid = len(self.creatures) > 0

tale/llm/responses/WorldItemsResponse.py

@@ -3,5 +3,5 @@
 class WorldItemsResponse():
 
     def __init__(self, response: dict = {}):
-        self.items = response["items"]
+        self.items = response.get("items", [])
         self.valid = len(self.items) > 0

tale/llm/world_building.py

@@ -186,8 +186,12 @@ def generate_start_location(self, location: Location, zone_info: dict, story_typ
         if self.json_grammar_key:
             request_body[self.json_grammar_key] = self.json_grammar
         result = self.io_util.synchronous_request(request_body, prompt=prompt)
+        if not result:
+            return LocationResponse.empty()
         try:
             json_result = json.loads(parse_utils.sanitize_json(result))
+            if not json_result.get('name', None):
+                return LocationResponse.empty()
             location.name=json_result['name']
             return LocationResponse(json_result=json_result, location=location, exit_location_name='', item_types=self.item_types)
         except Exception as exc:

tests/test_llm_utils.py

@@ -251,6 +251,12 @@ def test_generate_world_items(self):
         shield = result.items[1]
         assert(shield['name'] == 'shield')
 
+        self.llm_util._world_building.io_util.response = ''
+        result = self.llm_util._world_building.generate_world_items(world_generation_context=WorldGenerationContext(story_context='',story_type='',world_info='',world_mood=0))
+        assert not result.valid
+        assert(len(result.items) == 0)
+
+
     def test_generate_world_creatures(self):
         # mostly for coverage
         self.llm_util._world_building.io_util.response = '{"creatures":[{"name": "dragon", "body": "Creature", "unarmed_attack": "BITE", "hp":100, "level":10}]}'
@@ -263,6 +269,10 @@ def test_generate_world_creatures(self):
         assert(dragon["level"] == 10)
         assert(dragon["unarmed_attack"] == UnarmedAttack.BITE.name)
 
+        self.llm_util._world_building.io_util.response = ''
+        result = self.llm_util._world_building.generate_world_creatures(world_generation_context=WorldGenerationContext(story_context='',story_type='',world_info='',world_mood=0))
+        assert not result.valid
+        assert(len(result.creatures) == 0)
 
     def test_get_neighbor_or_generate_zone(self):
         """ Tests the get_neighbor_or_generate_zone method of llm_utils.
@@ -472,6 +482,25 @@ def test_issue_overwriting_exits(self):
         assert((len(rocky_cliffs.exits) == 6))
         assert((len(location_response.new_locations) == 2))
 
+    def test_generate_location_empty_response(self):
+        self.llm_util._world_building.io_util.response=''
+        location = Location(name='Outside')
+        result = self.llm_util.generate_start_location(location, 
+                                                       story_type='',
+                                                       story_context='', 
+                                                       zone_info={},
+                                                       world_info='')
+        assert result.empty()
+
+        self.llm_util._world_building.io_util.response='{}'
+        location = Location(name='Outside')
+        result = self.llm_util.generate_start_location(location, 
+                                                       story_type='',
+                                                       story_context='', 
+                                                       zone_info={},
+                                                       world_info='')
+        assert result.empty()
+
     def test_generate_note_lore(self):
         self.llm_util._quest_building.io_util.response = 'A long lost tale of a hero who saved the world from a great evil.'
         world_generation_context = WorldGenerationContext(story_context=self.story.config.context, story_type=self.story.config.type, world_info='', world_mood=0)