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

frog.py

@@ -0,0 +1,22 @@
+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()