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2026-09-27 22:55:32 +08:00
commit e51d514c84
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+# 无头测试：桩替代 pygame，验证 snake 游戏核心逻辑
+import sys, types, os, shutil, tempfile
+
+# ---------------- pygame 桩 ----------------
+class Surf:
+    def fill(self, *a, **k): pass
+    def blit(self, *a, **k): pass
+
+class Font:
+    def __init__(self, *a, **k): pass
+    def render(self, text, aa, color):
+        s = Surf()
+        s.get_width = lambda: 10 * len(str(text))
+        s.get_height = lambda: 20
+        return s
+
+class Rect:
+    def __init__(self, x, y, w, h, *a, **k):
+        self.x, self.y, self.width, self.height = x, y, w, h
+    @property
+    def right(self): return self.x + self.width
+
+class Clock:
+    def tick(self, *a): return 0
+    def get_time(self): return 16
+
+fake = types.ModuleType("pygame")
+fake.init = lambda: None
+fake.quit = lambda: None
+fake.joystick = types.SimpleNamespace(init=lambda: None, Joystick=lambda i: None,
+                                      get_count=lambda: 0)
+fake.display = types.SimpleNamespace(set_mode=lambda s: Surf(), set_caption=lambda s: None,
+                                     flip=lambda: None)
+fake.font = types.SimpleNamespace(Font=Font)
+fake.Rect = Rect
+fake.draw = types.SimpleNamespace(rect=lambda *a, **k: None, line=lambda *a, **k: None)
+fake.time = types.SimpleNamespace(Clock=Clock)
+for name, val in dict(K_ESCAPE=27, K_UP=273, K_DOWN=274, K_LEFT=276, K_RIGHT=275,
+                      K_w=119, K_s=115, K_a=97, K_d=100, K_RETURN=13, K_SPACE=32,
+                      QUIT=256, KEYDOWN=768, JOYBUTTONDOWN=769, JOYHATMOTION=770,
+                      JOYAXISMOTION=771).items():
+    setattr(fake, name, val)
+sys.modules["pygame"] = fake
+
+sys.path.insert(0, os.path.join(os.path.dirname(os.path.abspath(__file__)),
+                                "games", "snake"))
+import importlib.util
+spec = importlib.util.spec_from_file_location(
+    "snake_main", os.path.join(os.path.dirname(os.path.abspath(__file__)),
+                               "games", "snake", "main.py"))
+m = importlib.util.module_from_spec(spec)
+spec.loader.exec_module(m)
+
+# 把存档指到临时目录，避免污染
+tmp = tempfile.mkdtemp()
+m.SAVE_DIR = tmp
+m.SAVE_FILE = os.path.join(tmp, "snake_best.txt")
+
+g = m.SnakeGame()
+
+# 1. 初始为菜单态
+assert g.state == "menu"
+g.confirm()
+assert g.state == "play"
+assert len(g.snake) == 3
+print("1. 菜单→开始 OK")
+
+# 2. 移动两步，蛇头前进
+head0 = g.snake[0]
+g.step()
+assert g.snake[0] == (head0[0] + 1, head0[1]), g.snake[0]
+assert len(g.snake) == 3
+print("2. 移动 OK")
+
+# 3. 禁止 180° 掉头
+g.push_dir((-1, 0))
+g.step()
+assert g.dir == (1, 0), g.dir
+print("3. 禁止掉头 OK")
+
+# 4. 吃到苹果：加分 + 变长
+g.apple = (g.snake[0][0] + 1, g.snake[0][1])
+score0, len0 = g.score, len(g.snake)
+g.step()
+assert g.score == score0 + 1 and len(g.snake) == len0 + 1
+print("4. 吃苹果 OK")
+
+# 5. 撞墙 → 结束并保存最高分
+g.snake = [(m.COLS - 1, 5), (m.COLS - 2, 5), (m.COLS - 3, 5)]
+g.dir, g.pending = (1, 0), []
+g.score = 12
+g.step()
+assert g.state == "over" and g.best == 12
+assert open(m.SAVE_FILE).read() == "12"
+print("5. 撞墙/最高分保存 OK")
+
+# 6. 重新开始
+g.confirm()
+assert g.state == "play" and g.score == 0 and len(g.snake) == 3
+print("6. 重开 OK")
+
+# 7. 存档路径在仓库外（约定 games/_saves）
+m.SAVE_DIR = os.path.normpath(os.path.join(
+    os.path.dirname(os.path.abspath(__file__)), "games", "snake", "..", "_saves"))
+assert "_saves" in m.SAVE_DIR and "snake" not in m.SAVE_DIR.replace("_saves", "", 1).rstrip(os.sep).split(os.sep)[-1]
+print("7. 存档位于仓库外 OK")
+
+shutil.rmtree(tmp, ignore_errors=True)
+print("\n游戏逻辑全部测试通过 ✔")