Test loading wrong saves

squirrelbattle/game.py

@@ -139,7 +139,15 @@ class Game:
         """
         Loads the game from a dictionary
         """
-        self.map.load_state(d)
+        try:
+            self.map.load_state(d)
+        except KeyError:
+            self.message = "Some keys are missing in your save file.\n" \
+                           "Your save seems to be corrupt. It got deleted."
+            os.unlink(ResourceManager.get_config_path("save.json"))
+            self.display_actions(DisplayActions.UPDATE)
+            return
+
         players = self.map.find_entities(Player)
         if not players:
             self.message = "No player was found on this map!\n" \

squirrelbattle/tests/game_test.py

@@ -4,6 +4,8 @@
 import os
 import unittest
 
+from squirrelbattle.resources import ResourceManager
+
 from squirrelbattle.enums import DisplayActions
 
 from squirrelbattle.bootstrap import Bootstrap
@@ -43,6 +45,27 @@ class TestGame(unittest.TestCase):
         new_state = self.game.save_state()
         self.assertEqual(old_state, new_state)
 
+        # Error on loading save
+        with open(ResourceManager.get_config_path("save.json"), "w") as f:
+            f.write("I am not a JSON file")
+        self.assertIsNone(self.game.message)
+        self.game.load_game()
+        self.assertIsNotNone(self.game.message)
+        self.game.message = None
+
+        with open(ResourceManager.get_config_path("save.json"), "w") as f:
+            f.write("{}")
+        self.assertIsNone(self.game.message)
+        self.game.load_game()
+        self.assertIsNotNone(self.game.message)
+        self.game.message = None
+
+        # Load game with a dead player
+        self.game.map.remove_entity(self.game.player)
+        self.game.save_game()
+        self.game.load_game()
+        self.assertIsNotNone(self.game.message)
+
     def test_bootstrap_fail(self) -> None:
         """
         Ensure that the test can't play the game,