151 lines
4.4 KiB
Python
151 lines
4.4 KiB
Python
from __future__ import annotations
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import json
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import socket
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import time
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import pytest
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from server_core import PROTOCOL_VERSION, FalloutTogetherServer, states_share_interest
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def recv_packet(sock: socket.socket, timeout: float = 2.0) -> dict:
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sock.settimeout(timeout)
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data = b""
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while b"\n" not in data:
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data += sock.recv(4096)
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line, _ = data.split(b"\n", 1)
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return json.loads(line.decode("utf-8"))
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def send_packet(sock: socket.socket, packet: dict) -> None:
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sock.sendall(json.dumps(packet, separators=(",", ":")).encode() + b"\n")
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def connect(server: FalloutTogetherServer) -> tuple[socket.socket, dict]:
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sock = socket.create_connection(("127.0.0.1", server.port), timeout=2.0)
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return sock, recv_packet(sock)
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def hello(sock: socket.socket) -> dict:
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send_packet(sock, {"type": "hello", "protocolVersion": PROTOCOL_VERSION})
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return recv_packet(sock)
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def transform(cell: str, x: float, y: float, world: str = "0000003C") -> dict:
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return {
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"type": "transform",
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"x": x,
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"y": y,
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"z": 0.0,
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"angleZ": 0.0,
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"cellId": cell,
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"worldspaceId": world,
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}
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def start_server(max_players: int = 16) -> FalloutTogetherServer:
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server = FalloutTogetherServer(host="127.0.0.1", port=0, max_players=max_players)
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server.start()
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deadline = time.time() + 2
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while not server.is_running() and time.time() < deadline:
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time.sleep(0.01)
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return server
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def test_interest_exact_cell_and_exterior_radius():
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a = transform("00000001", 0, 0)
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same = transform("00000001", 50000, 50000)
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near = transform("00000002", 1000, 1000)
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far = transform("00000002", 20000, 20000)
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other_world = transform("00000002", 1000, 1000, world="0000003D")
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assert states_share_interest(a, same)
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assert states_share_interest(a, near)
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assert not states_share_interest(a, far)
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assert not states_share_interest(a, other_world)
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def test_idle_transport_does_not_take_world_authority():
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server = start_server()
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idle, _ = connect(server)
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active, active_welcome = connect(server)
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ready = hello(active)
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assert ready["playerId"] == active_welcome["playerId"]
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stats = server.get_stats()
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assert stats["connectedClients"] == 1
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assert stats["pendingConnections"] == 1
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assert server._world_state_host_player_id == active_welcome["playerId"]
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idle.close()
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active.close()
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server.stop()
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def test_max_players_applies_to_activated_sessions_not_probes():
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server = start_server(max_players=1)
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first, _ = connect(server)
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hello(first)
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second, _ = connect(server)
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send_packet(second, {"type": "hello", "protocolVersion": PROTOCOL_VERSION})
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ended = recv_packet(second)
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assert ended["type"] == "sessionEnded"
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assert ended["code"] == "server_full"
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first.close()
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second.close()
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server.stop()
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def test_protocol_mismatch_is_rejected():
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server = start_server()
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sock, _ = connect(server)
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send_packet(sock, {"type": "hello", "protocolVersion": PROTOCOL_VERSION + 1})
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ended = recv_packet(sock)
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assert ended["type"] == "sessionEnded"
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assert ended["code"] == "protocol_mismatch"
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sock.close()
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server.stop()
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def test_nan_transform_is_rejected_and_not_cached():
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server = start_server()
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sock, welcome = connect(server)
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hello(sock)
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sock.sendall(
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b'{"type":"transform","x":NaN,"y":0,"z":0,"angleZ":0,"cellId":"00000001"}\n'
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)
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time.sleep(0.05)
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client = server._find_client_by_player_id(welcome["playerId"])
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assert client is not None
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assert client.last_transform is None
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assert server.get_stats()["packetsRejected"] >= 1
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sock.close()
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server.stop()
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def test_transform_interest_filters_distant_peer():
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server = start_server()
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a, _ = connect(server)
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hello(a)
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b, _ = connect(server)
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hello(b)
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send_packet(b, transform("00000020", 25000, 25000))
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time.sleep(0.05)
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send_packet(a, transform("00000010", 0, 0))
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b.settimeout(0.2)
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with pytest.raises(socket.timeout):
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b.recv(4096)
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assert server.get_stats()["transformPacketsInterestFiltered"] >= 1
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a.close()
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b.close()
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server.stop()
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def test_oversized_unterminated_packet_closes_session():
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server = start_server()
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sock, _ = connect(server)
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sock.sendall(b"x" * (64 * 1024 + 1))
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ended = recv_packet(sock)
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assert ended["type"] == "sessionEnded"
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assert ended["code"] == "packet_too_large"
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sock.close()
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server.stop()
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