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import pytest
from wsproto.connection import CLIENT, Connection, ConnectionState, SERVER
from wsproto.events import (
BytesMessage,
CloseConnection,
Ping,
Pong,
Request,
TextMessage,
)
from wsproto.frame_protocol import CloseReason
from wsproto.utilities import LocalProtocolError
@pytest.mark.parametrize("client_sends", [True, False])
@pytest.mark.parametrize("final", [True, False])
def test_send_message(client_sends: bool, final: bool) -> None:
client = Connection(CLIENT)
server = Connection(SERVER)
if client_sends:
local = client
remote = server
else:
local = server
remote = client
data = b"x" * 23
remote.receive_data(local.send(BytesMessage(data=data, message_finished=final)))
event = next(remote.events())
assert isinstance(event, BytesMessage)
assert event.data == data
assert event.message_finished is final
@pytest.mark.parametrize("client_sends", [True, False])
@pytest.mark.parametrize(
"code, reason",
[(CloseReason.NORMAL_CLOSURE, "bye"), (CloseReason.GOING_AWAY, "๐๐")],
)
def test_closure(client_sends: bool, code: CloseReason, reason: str) -> None:
client = Connection(CLIENT)
server = Connection(SERVER)
if client_sends:
local = client
remote = server
else:
local = server
remote = client
remote.receive_data(local.send(CloseConnection(code=code, reason=reason)))
event = next(remote.events())
assert isinstance(event, CloseConnection)
assert event.code is code
assert event.reason == reason
assert remote.state is ConnectionState.REMOTE_CLOSING
assert local.state is ConnectionState.LOCAL_CLOSING
local.receive_data(remote.send(event.response()))
event = next(local.events())
assert isinstance(event, CloseConnection)
assert event.code is code
assert event.reason == reason
assert remote.state is ConnectionState.CLOSED # type: ignore[comparison-overlap]
assert local.state is ConnectionState.CLOSED
with pytest.raises(LocalProtocolError):
local.receive_data(b"foobar")
def test_abnormal_closure() -> None:
client = Connection(CLIENT)
client.receive_data(None)
event = next(client.events())
assert isinstance(event, CloseConnection)
assert event.code is CloseReason.ABNORMAL_CLOSURE
assert client.state is ConnectionState.CLOSED
def test_close_whilst_closing() -> None:
client = Connection(CLIENT)
client.send(CloseConnection(code=CloseReason.NORMAL_CLOSURE))
with pytest.raises(LocalProtocolError):
client.send(CloseConnection(code=CloseReason.NORMAL_CLOSURE))
def test_send_after_close() -> None:
client = Connection(CLIENT)
client.send(CloseConnection(code=CloseReason.NORMAL_CLOSURE))
with pytest.raises(LocalProtocolError):
client.send(TextMessage(data="", message_finished=True))
@pytest.mark.parametrize("client_sends", [True, False])
def test_ping_pong(client_sends: bool) -> None:
client = Connection(CLIENT)
server = Connection(SERVER)
if client_sends:
local = client
remote = server
else:
local = server
remote = client
payload = b"x" * 23
remote.receive_data(local.send(Ping(payload=payload)))
event = next(remote.events())
assert isinstance(event, Ping)
assert event.payload == payload
local.receive_data(remote.send(event.response()))
event = next(local.events())
assert isinstance(event, Pong)
assert event.payload == payload
def test_unsolicited_pong() -> None:
client = Connection(CLIENT)
server = Connection(SERVER)
payload = b"x" * 23
server.receive_data(client.send(Pong(payload=payload)))
event = next(server.events())
assert isinstance(event, Pong)
assert event.payload == payload
@pytest.mark.parametrize("split_message", [True, False])
def test_data(split_message: bool) -> None:
client = Connection(CLIENT)
server = Connection(SERVER)
data = "ฦรฑรถยฎโ๐"
server.receive_data(
client.send(TextMessage(data=data, message_finished=not split_message))
)
event = next(server.events())
assert isinstance(event, TextMessage)
assert event.message_finished is not split_message
def test_frame_protocol_gets_fed_garbage() -> None:
client = Connection(CLIENT)
payload = b"x" * 23
frame = b"\x09" + bytearray([len(payload)]) + payload
client.receive_data(frame)
event = next(client.events())
assert isinstance(event, CloseConnection)
assert event.code == CloseReason.PROTOCOL_ERROR
def test_send_invalid_event() -> None:
client = Connection(CLIENT)
with pytest.raises(LocalProtocolError):
client.send(Request(target="/", host="wsproto"))
def test_receive_data_when_closed() -> None:
client = Connection(CLIENT)
client._state = ConnectionState.CLOSED
with pytest.raises(LocalProtocolError):
client.receive_data(b"something")
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