Im proud im understanding what im doing

Im stuck on testing my code
Im worried my code isnt doing what i want it to but i cant test it to see

Frogger.py

@@ -0,0 +1,11 @@
+from retro.game import Game
+from frog import Frog
+from obstacle_spawner import ObstacleSpawner
+
+board_size = (25, 25)
+
+board_size = (25, 25)
+froggy = Frog(board_size)
+spawner = ObstacleSpawner()
+game = Game([froggy, spawner], {"score": 0}, board_size=board_size)
+game.play()

frog.py

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+class Frog:
+    name = "froggy"
+    character = '^'
+
+    def __init__(self, board_size):
+        board_width, board_height = board_size
+        self.position = (board_width // 2, board_height - 1)
+
+    def handle_keystroke(self, keystroke, game):
+        x, y = self.position
+        if keystroke.name in ("KEY_LEFT", "KEY_RIGHT", "KEY_UP"):
+            if keystroke.name == "KEY_LEFT": 
+                new_position = (x - 1, y)
+            if keystroke.name == "KEY_RIGHT": 
+                new_position = (x + 1, y)
+            if keystroke.name == "KEY_UP": 
+                new_position = (x, y + 1)
+            if game.on_board(new_position):
+                if game.is_empty(new_position):
+                    self.position = new_position
+                else:
+                    game.end()

obstacle.py

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+class Obstacle:
+    character = 'O'
+
+    def __init__(self, position):
+        self.position = position
+
+    def play_turn(self, game):
+        width, height = game.board_size
+        if game.turn_number % 2 == 0: 
+            x, y = self.position
+            if y == height + 1: 
+                game.remove_agent(self)
+            else:
+                froggy = game.get_agent_by_name('froggy')
+                new_position = (x, y + 1)
+                if new_position == froggy.position:
+                    game.end()
+                else:
+                    self.position = new_position

obstacle_spawner.py

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+from random import randint
+from obstacle import Obstacle
+
+class ObstacleSpawner:
+    display = False
+
+    def play_turn(self, game):
+        width, height = game.board_size
+        game.state['score'] += 1
+        if self.should_spawn_obstacle(game.turn_number):
+            obstacle = Obstacle((randint(0, width - 1), 0))
+            game.add_agent(obstacle)
+
+    def should_spawn_obstacle(self, turn_number):
+        return randint(0, 1000) < turn_number