def test_remain():
mux = Multiplexer()
p0, p1, p2 = 0, 1, 2
mux.add_protocol(p0)
mux.add_protocol(p1)
mux.add_protocol(p2)
# test buffer remains, incomplete frames
packet1 = Packet(p1, cmd_id=0, payload='\x00' * 100)
mux.add_packet(packet1)
message = mux.pop_all_frames_as_bytes()
tail = message[:50]
message += tail
packets = mux.decode(message)
assert packets[0] == packet1
assert len(packets) == 1
assert len(mux._decode_buffer) == len(tail)
# test buffer decode with invalid data
message = message[1:]
exception_raised = False
try:
packets = mux.decode(message)
except DeserializationError:
exception_raised = True
assert exception_raised
def test_chunked_big():
import time
mux = Multiplexer()
p0 = 0
mux.add_protocol(p0)
# big packet
payload = '\x00' * 10 * 1024**2
print 'size', len(payload)
packet1 = Packet(p0, cmd_id=0, payload=payload)
# framing
st = time.time()
mux.add_packet(packet1)
print 'framing', time.time() - st
# popping frames
st = time.time()
messages = [f.as_bytes() for f in mux.pop_all_frames()]
print 'popping frames', time.time() - st
st = time.time()
# decoding
for m in messages:
packets = mux.decode(m)
if packets:
break
print 'decoding frames', time.time() - st
assert len(mux._decode_buffer) == 0
assert packets[0].payload == packet1.payload
assert packets[0] == packet1
assert len(packets) == 1
def test_chunked():
mux = Multiplexer()
p0, p1, p2 = 0, 1, 2
mux.add_protocol(p0)
mux.add_protocol(p1)
mux.add_protocol(p2)
# big packet
print 'size', mux.max_window_size * 2
packet1 = Packet(p1, cmd_id=0, payload='\x00' * mux.max_window_size * 2 + 'x')
mux.add_packet(packet1)
frames = mux.pop_all_frames()
all_frames_length = sum(f.frame_size() for f in frames)
assert sum(len(f.payload) for f in frames) == len(packet1.payload)
for i, f, in enumerate(frames):
print i, f.frame_size()
print 'frame payload', len(f.payload)
print f._frame_type()
mux.add_packet(packet1)
message = mux.pop_all_frames_as_bytes()
assert len(message) == all_frames_length
packets = mux.decode(message)
assert len(mux._decode_buffer) == 0
assert packets[0].payload == packet1.payload
assert packets[0] == packet1
assert len(packets) == 1
def test_frame():
mux = Multiplexer()
p0 = 0
mux.add_protocol(p0)
# test normal packet
packet0 = Packet(p0, cmd_id=0, payload='x' * 100)
mux.add_packet(packet0)
frames = mux.pop_frames()
assert len(frames) == 1
f = frames[0]
message = f.as_bytes()
# check framing
fs = f.frame_size()
assert len(message) == fs
_fs = 16 + 16 + len(f.enc_cmd_id) + len(packet0.payload) + 16
_fs += Frame.padding - _fs % Frame.padding
assert fs == _fs
assert message[32 + len(f.enc_cmd_id):].startswith(packet0.payload)
packets = mux.decode(message)
assert len(mux._decode_buffer) == 0
assert len(packets[0].payload) == len(packet0.payload)
assert packets[0].payload == packet0.payload
assert packets[0] == packet0
def test_multiplexing():
initiator, responder = test_session()
imux = Multiplexer(frame_cipher=initiator)
rmux = Multiplexer(frame_cipher=responder)
p1 = 1
imux.add_protocol(p1)
rmux.add_protocol(p1)
packet1 = Packet(p1, cmd_id=0, payload='\x00' * 100)
imux.add_packet(packet1)
msg = imux.pop_all_frames_as_bytes()
packets = rmux.decode(msg)
assert len(packets) == 1
assert packet1 == packets[0]
def test_multiplexing():
initiator, responder = test_session()
imux = Multiplexer(frame_cipher=initiator)
rmux = Multiplexer(frame_cipher=responder)
p1 = 1
imux.add_protocol(p1)
rmux.add_protocol(p1)
packet1 = Packet(p1, cmd_id=0, payload='\x00' * 100)
imux.add_packet(packet1)
msg = imux.pop_all_frames_as_bytes()
packets = rmux.decode(msg)
assert len(packets) == 1
assert packet1 == packets[0]
def test_multiplexer():
mux = Multiplexer()
p0, p1, p2 = 0, 1, 2
mux.add_protocol(p0)
mux.add_protocol(p1)
mux.add_protocol(p2)
assert mux.next_protocol == p0
assert mux.next_protocol == p1
assert mux.next_protocol == p2
assert mux.next_protocol == p0
assert mux.pop_frames() == []
assert mux.num_active_protocols == 0
# test normal packet
packet0 = Packet(p0, cmd_id=0, payload='x' * 100)
mux.add_packet(packet0)
assert mux.num_active_protocols == 1
frames = mux.pop_frames()
assert len(frames) == 1
f = frames[0]
assert len(f.as_bytes()) == f.frame_size()
mux.add_packet(packet0)
assert mux.num_active_protocols == 1
message = mux.pop_all_frames_as_bytes()
packets = mux.decode(message)
assert len(packets[0].payload) == len(packet0.payload)
assert packets[0].payload == packet0.payload
assert packets[0] == packet0
# nothing left to pop
assert len(mux.pop_frames()) == 0
# big packet
packet1 = Packet(p1, cmd_id=0, payload='\x00' * mux.max_window_size * 2)
mux.add_packet(packet1)
# decode packets from buffer
message = mux.pop_all_frames_as_bytes()
packets = mux.decode(message)
assert packets[0].payload == packet1.payload
assert packets[0] == packet1
assert len(packets) == 1
# mix packet types
packet2 = Packet(p0, cmd_id=0, payload='\x00' * 200, prioritize=True)
mux.add_packet(packet1)
mux.add_packet(packet0)
mux.add_packet(packet2)
message = mux.pop_all_frames_as_bytes()
packets = mux.decode(message)
assert packets == [packet2, packet0, packet1]
# packets with different protocols
packet3 = Packet(p1, cmd_id=0, payload='\x00' * 3000, prioritize=False)
mux.add_packet(packet1)
mux.add_packet(packet0)
mux.add_packet(packet2)
mux.add_packet(packet3)
mux.add_packet(packet3)
mux.add_packet(packet3)
assert mux.next_protocol == p0
# thus next with data is p1 w/ packet3
message = mux.pop_all_frames_as_bytes()
packets = mux.decode(message)
assert packets == [packet3, packet2, packet0, packet3, packet3, packet1]
# test buffer remains, incomplete frames
packet1 = Packet(p1, cmd_id=0, payload='\x00' * 100)
mux.add_packet(packet1)
message = mux.pop_all_frames_as_bytes()
tail = message[:50]
message += tail
packets = mux.decode(message)
assert packets[0] == packet1
assert len(packets) == 1
assert len(mux._decode_buffer) == len(tail)