Created test class for aStar class

testAStar.py

+import unittest
+from aStar import AStar
+
+
+class TestAStar(unittest.TestCase):
+    def setUp(self):
+        self.maze = [
+            [1, 0, 0, 0],
+            [0, 1, 1, 0],
+            [0, 0, 0, 1],
+            [1, 0, 0, 0]
+        ]
+        self.a_star_solver = AStar(self.maze)
+
+    def test_heuristic1(self):
+        current_position = (1, 1)
+        visited_corners = set()
+        heuristic_result = self.a_star_solver.heuristic1(current_position, self.a_star_solver.corners, visited_corners)
+        self.assertEqual(heuristic_result, 3)
+
+        current_position = (2, 2)
+        visited_corners = set()
+        heuristic_result = self.a_star_solver.heuristic1(current_position, self.a_star_solver.corners, visited_corners)
+        self.assertEqual(heuristic_result, ...)
+
+    def test_heuristic2(self):
+        current_position = (1, 1)
+        visited_corners = set()
+        heuristic_result = self.a_star_solver.heuristic2(current_position, self.a_star_solver.corners, visited_corners)
+        self.assertEqual(heuristic_result, ...)
+
+        current_position = (2, 2)
+        visited_corners = set()
+        heuristic_result = self.a_star_solver.heuristic2(current_position, self.a_star_solver.corners, visited_corners)
+        self.assertEqual(heuristic_result, ...)
+
+    def test_all_corners_visited(self):
+        corners = {(1, 1), (2, 2), (3, 3)}
+        visited_corners = {(1, 1), (2, 2)}
+        result = self.a_star_solver.all_corners_visited(corners, visited_corners)
+        self.assertFalse(result)
+
+    def test_find_goal_position(self):
+        maze_with_goal = ...
+        goal_position = self.a_star_solver.find_goal_position(maze_with_goal)
+        self.assertIsNotNone(goal_position)
+
+        maze_without_goal = ...
+        goal_position = self.a_star_solver.find_goal_position(maze_without_goal)
+        self.assertIsNone(goal_position)
+
+    def test_find_shortest_path_with_valid_heuristic(self):
+        def valid_heuristic(current, corners, visited_corners):
+            return 0
+
+        path = self.a_star_solver.find_shortest_path(valid_heuristic)
+        self.assertIsNotNone(path)
+
+    def test_find_shortest_path_with_invalid_heuristic(self):
+        def invalid_heuristic(current, corners, visited_corners):
+            return None
+
+        path = self.a_star_solver.find_shortest_path(invalid_heuristic)
+        self.assertIsNone(path)
+
+
+if __name__ == '__main__':
+    unittest.main()