feat: +qa unit test

tests/data/demo_project/game.py

@@ -0,0 +1,92 @@
+## game.py
+
+import random
+from typing import List, Tuple
+
+
+class Game:
+    def __init__(self):
+        self.grid: List[List[int]] = [[0 for _ in range(4)] for _ in range(4)]
+        self.score: int = 0
+        self.game_over: bool = False
+
+    def reset_game(self):
+        self.grid = [[0 for _ in range(4)] for _ in range(4)]
+        self.score = 0
+        self.game_over = False
+        self.add_new_tile()
+        self.add_new_tile()
+
+    def move(self, direction: str):
+        if direction == "up":
+            self._move_up()
+        elif direction == "down":
+            self._move_down()
+        elif direction == "left":
+            self._move_left()
+        elif direction == "right":
+            self._move_right()
+
+    def is_game_over(self) -> bool:
+        for i in range(4):
+            for j in range(4):
+                if self.grid[i][j] == 0:
+                    return False
+                if j < 3 and self.grid[i][j] == self.grid[i][j + 1]:
+                    return False
+                if i < 3 and self.grid[i][j] == self.grid[i + 1][j]:
+                    return False
+        return True
+
+    def get_empty_cells(self) -> List[Tuple[int, int]]:
+        empty_cells = []
+        for i in range(4):
+            for j in range(4):
+                if self.grid[i][j] == 0:
+                    empty_cells.append((i, j))
+        return empty_cells
+
+    def add_new_tile(self):
+        empty_cells = self.get_empty_cells()
+        if empty_cells:
+            x, y = random.choice(empty_cells)
+            self.grid[x][y] = 2 if random.random() < 0.9 else 4
+
+    def get_score(self) -> int:
+        return self.score
+
+    def _move_up(self):
+        for j in range(4):
+            for i in range(1, 4):
+                if self.grid[i][j] != 0:
+                    for k in range(i, 0, -1):
+                        if self.grid[k - 1][j] == 0:
+                            self.grid[k - 1][j] = self.grid[k][j]
+                            self.grid[k][j] = 0
+
+    def _move_down(self):
+        for j in range(4):
+            for i in range(2, -1, -1):
+                if self.grid[i][j] != 0:
+                    for k in range(i, 3):
+                        if self.grid[k + 1][j] == 0:
+                            self.grid[k + 1][j] = self.grid[k][j]
+                            self.grid[k][j] = 0
+
+    def _move_left(self):
+        for i in range(4):
+            for j in range(1, 4):
+                if self.grid[i][j] != 0:
+                    for k in range(j, 0, -1):
+                        if self.grid[i][k - 1] == 0:
+                            self.grid[i][k - 1] = self.grid[i][k]
+                            self.grid[i][k] = 0
+
+    def _move_right(self):
+        for i in range(4):
+            for j in range(2, -1, -1):
+                if self.grid[i][j] != 0:
+                    for k in range(j, 3):
+                        if self.grid[i][k + 1] == 0:
+                            self.grid[i][k + 1] = self.grid[i][k]
+                            self.grid[i][k] = 0