

'''simple docstring'''





from __future__ import annotations

A_	= list[tuple[int, int]]

A_	= [
    [0, 0, 0, 0, 0, 0, 0],
    [0, 1, 0, 0, 0, 0, 0],  # 0 are free path whereas 1's are obstacles
    [0, 0, 0, 0, 0, 0, 0],
    [0, 0, 1, 0, 0, 0, 0],
    [1, 0, 1, 0, 0, 0, 0],
    [0, 0, 0, 0, 0, 0, 0],
    [0, 0, 0, 0, 1, 0, 0],
]

A_	= ([-1, 0], [0, -1], [1, 0], [0, 1])  # up, left, down, right


class  UpperCAmelCase :

		'''simple docstring'''






		def __init__(					self   ,			SCREAMING_SNAKE_CASE_   ,			SCREAMING_SNAKE_CASE_   ,			SCREAMING_SNAKE_CASE_   ,			SCREAMING_SNAKE_CASE_   ,			SCREAMING_SNAKE_CASE_   ,			SCREAMING_SNAKE_CASE_   ,			)  ->     str:






							'''simple docstring'''



							lowerCamelCase_  				=      pos_x
							lowerCamelCase_  				=      pos_y
							lowerCamelCase_  				=      (pos_y, pos_x)
							lowerCamelCase_  				=      goal_x
							lowerCamelCase_  				=      goal_y
							lowerCamelCase_  				=      g_cost
							lowerCamelCase_  				=      parent
							lowerCamelCase_  				=      self.calculate_heuristic()
		def 			UpperCamelCase(					self		)  ->     List[str]:






							'''simple docstring'''



							lowerCamelCase_  				=      abs(self.pos_x - self.goal_x		)
							lowerCamelCase_  				=      abs(self.pos_y - self.goal_y		)
							return dx + dy






		def __lt__(					self   ,			SCREAMING_SNAKE_CASE_		)  ->     Optional[int]:






							'''simple docstring'''



							return self.f_cost < other.f_cost


class  UpperCAmelCase :

		'''simple docstring'''






		def __init__(					self   ,			SCREAMING_SNAKE_CASE_   ,			SCREAMING_SNAKE_CASE_		)  ->     Tuple:






							'''simple docstring'''



							lowerCamelCase_  				=      Node(start[1]   ,			start[0]   ,			goal[1]   ,			goal[0]   ,			0   ,			lowercase__		)
							lowerCamelCase_  				=      Node(goal[1]   ,			goal[0]   ,			goal[1]   ,			goal[0]   ,			99999   ,			lowercase__		)

							lowerCamelCase_  				=      [self.start]
							lowerCamelCase_  				=      []

							lowerCamelCase_  				=      False
		def 			UpperCamelCase(					self		)  ->     List[Any]:






							'''simple docstring'''



							while self.open_nodes:
												# Open Nodes are sorted using __lt__
												self.open_nodes.sort()
												lowerCamelCase_  				=      self.open_nodes.pop(0		)

												if current_node.pos == self.target.pos:
																	lowerCamelCase_  				=      True
																	return self.retrace_path(lowercase__		)

												self.closed_nodes.append(lowercase__		)
												lowerCamelCase_  				=      self.get_successors(lowercase__		)

												for child_node in successors:
																	if child_node in self.closed_nodes:
																						continue

																	if child_node not in self.open_nodes:
																						self.open_nodes.append(lowercase__		)
																	else:
																						# retrieve the best current path
																						lowerCamelCase_  				=      self.open_nodes.pop(self.open_nodes.index(lowercase__		)		)

																						if child_node.g_cost < better_node.g_cost:
																											self.open_nodes.append(lowercase__		)
																						else:
																											self.open_nodes.append(lowercase__		)

							if not self.reached:
												return [self.start.pos]
							return None
		def 			UpperCamelCase(					self   ,			SCREAMING_SNAKE_CASE_		)  ->     Dict:






							'''simple docstring'''



							lowerCamelCase_  				=      []
							for action in delta:
												lowerCamelCase_  				=      parent.pos_x + action[1]
												lowerCamelCase_  				=      parent.pos_y + action[0]

												if not (0 <= pos_x <= len(grid[0]		) - 1 and 0 <= pos_y <= len(lowercase__		) - 1):
																	continue

												if grid[pos_y][pos_x] != 0:
																	continue

												successors.append(
												    Node(
												        lowercase__   ,			lowercase__   ,			self.target.pos_y   ,			self.target.pos_x   ,			parent.g_cost + 1   ,			lowercase__   ,			)		)
							return successors






		def 			UpperCamelCase(					self   ,			SCREAMING_SNAKE_CASE_		)  ->     str:






							'''simple docstring'''



							lowerCamelCase_  				=      node
							lowerCamelCase_  				=      []
							while current_node is not None:
												path.append((current_node.pos_y, current_node.pos_x)		)
												lowerCamelCase_  				=      current_node.parent
							path.reverse()
							return path


if __name__ == "__main__":
				A_	= (0, 0)
				A_	= (len(grid) - 1, len(grid[0]) - 1)
				for elem in grid:
								print(elem)

				print("------")

				A_	= GreedyBestFirst(init, goal)
				A_	= greedy_bf.search()
				if path:
								for pos_x, pos_y in path:
												A_	= 2

								for elem in grid:
												print(elem)









'''simple docstring'''


from unittest.mock import Mock, patch

from file_transfer.send_file import send_file



@patch("""socket.socket"""				)
@patch("""builtins.open"""				)
def  _SCREAMING_SNAKE_CASE     (      UpperCamelCase__    :					Dict ,    UpperCamelCase__    :					Tuple				):




     """simple docstring"""


     a_     :							Dict     						=  Mock()
     a_     :							List[str]     						=  conn, Mock()
     a_     :							Optional[int]     						=  iter([1, None]				)
     a_     :							List[str]     						=  lambda UpperCamelCase__				: next(UpperCamelCase__				)

     # ===== invoke =====
     send_file(filename="""mytext.txt""" ,    testing=UpperCamelCase__				)

     # ===== ensurance =====
     sock.assert_called_once()
     sock.return_value.bind.assert_called_once()
     sock.return_value.listen.assert_called_once()
     sock.return_value.accept.assert_called_once()
     conn.recv.assert_called_once()

     file.return_value.__enter__.assert_called_once()
     file.return_value.__enter__.return_value.read.assert_called()

     conn.send.assert_called_once()
     conn.close.assert_called_once()
     sock.return_value.shutdown.assert_called_once()
     sock.return_value.close.assert_called_once()
