feat: +unit test

fixbug: PYTHONPATH

fixbug: unit test

tests/data/output_parser/1.md

@@ -0,0 +1,57 @@
+## Implementation approach
+
+We will use the Pygame library to create the game interface and handle user input. The game logic will be implemented using Python classes and data structures.
+
+## File list
+
+- main.py
+- game.py
+
+## Data structures and interfaces
+
+classDiagram
+    class Game {
+        -grid: List[List[int]]
+        -score: int
+        -game_over: bool
+        +__init__()
+        +reset_game()
+        +move(direction: str)
+        +is_game_over() bool
+        +get_empty_cells() List[Tuple[int, int]]
+        +add_new_tile()
+        +get_score() int
+    }
+    class UI {
+        -game: Game
+        +__init__(game: Game)
+        +draw_grid()
+        +draw_score()
+        +draw_game_over()
+        +handle_input()
+    }
+    Game --> UI
+
+## Program call flow
+
+sequenceDiagram
+    participant M as Main
+    participant G as Game
+    participant U as UI
+    M->>G: reset_game()
+    M->>U: draw_grid()
+    M->>U: draw_score()
+    M->>U: handle_input()
+    U->>G: move(direction)
+    G->>G: add_new_tile()
+    G->>U: draw_grid()
+    G->>U: draw_score()
+    G->>U: draw_game_over()
+    G->>G: is_game_over()
+    G->>G: get_empty_cells()
+    G->>G: get_score()
+
+## Anything UNCLEAR
+
+...
+

tests/data/output_parser/2.md

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+## Language
+
+en_us
+
+## Programming Language
+
+Python
+
+## Original Requirements
+
+write a 2048 game
+
+## Project Name
+
+game_2048
+
+## Product Goals
+
+- Create an addictive and engaging gaming experience
+- Ensure smooth performance and responsiveness
+- Offer customizable game settings and features
+
+## User Stories
+
+- As a player, I want to be able to play the game on different devices and screen sizes
+- As a gamer, I want to be challenged with increasing difficulty levels as I progress
+- As a user, I want to be able to undo my last move in the game
+
+## Competitive Analysis
+
+- 2048 Game by Gabriele Cirulli: Popular and addictive, lacks advanced customization options
+
+## Competitive Quadrant Chart
+
+quadrantChart
+    title "Engagement and Customization of 2048 Games"
+    x-axis "Low Customization" --> "High Customization"
+    y-axis "Low Engagement" --> "High Engagement"
+    quadrant-1 "Enhance Customization"
+    quadrant-2 "Improve Engagement"
+    quadrant-3 "Maintain Customization, Enhance Engagement"
+    quadrant-4 "Highly Engaging and Customizable"
+    "2048 Game by Gabriele Cirulli": [0.4, 0.7]
+    "Our Target Product": [0.6, 0.8]
+
+## Requirement Analysis
+
+The product should provide an intuitive and seamless gaming experience with customizable features to enhance user engagement.
+
+## Requirement Pool
+
+- ['P0', 'Implement game logic and user interface']
+- ['P1', 'Incorporate multiple difficulty levels and scoring system']
+- ['P2', 'Integrate customizable game settings and undo feature']
+
+## UI Design draft
+
+The UI should have a clean and modern design with intuitive game controls and customizable settings for difficulty levels and game themes.
+
+## Anything UNCLEAR
+
+...
+

tests/data/output_parser/3.md

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+### Code Review All
+
+#### game.py
+- The `add_new_tile` function should handle the case when there are no empty cells left.
+- The `move` function should update the score when tiles are merged.
+
+#### main.py
+- The game loop does not handle the game over condition properly. It should break the loop when the game is over.
+
+### Call flow
+```mermaid
+sequenceDiagram
+    participant M as Main
+    participant G as Game
+    participant U as UI
+    M->>G: reset_game()
+    M->>U: draw_grid()
+    M->>U: draw_score()
+    M->>U: handle_input()
+    U->>G: move(direction)
+    G->>G: add_new_tile()
+    G->>U: draw_grid()
+    G->>U: draw_score()
+    G->>U: draw_game_over()
+    G->>G: is_game_over()
+    G->>G: get_empty_cells()
+    G->>G: get_score()
+```
+
+### Summary
+The code implements the 2048 game using Python classes and data structures. The Pygame library is used for the game interface and user input handling. The `game.py` file contains the `Game` class and related functions for game logic, while the `main.py` file initializes the game and UI.
+
+### TODOs
+```python
+{
+    "game.py": "Add handling for no empty cells in add_new_tile function, Update score in move function",
+    "main.py": "Handle game over condition in the game loop"
+}
+```