def test_recv_already_partially_consumed(self): stream = QuicStream(stream_id=0) self.assertEqual( stream.add_frame(QuicStreamFrame(offset=0, data=b"01234567")), StreamDataReceived(data=b"01234567", end_stream=False, stream_id=0), ) self.assertEqual( stream.add_frame(QuicStreamFrame(offset=0, data=b"0123456789012345")), StreamDataReceived(data=b"89012345", end_stream=False, stream_id=0), ) self.assertEqual(bytes(stream._recv_buffer), b"") self.assertEqual(list(stream._recv_ranges), []) self.assertEqual(stream._recv_buffer_start, 16)
def test_recv_offset_only(self): stream = QuicStream(stream_id=0) # add data at offset 0 self.assertEqual(stream.add_frame(QuicStreamFrame(offset=0, data=b"")), None) self.assertEqual(bytes(stream._recv_buffer), b"") self.assertEqual(list(stream._recv_ranges), []) self.assertEqual(stream._recv_buffer_start, 0) # add data at offset 8 self.assertEqual(stream.add_frame(QuicStreamFrame(offset=8, data=b"")), None) self.assertEqual( bytes(stream._recv_buffer), b"\x00\x00\x00\x00\x00\x00\x00\x00" ) self.assertEqual(list(stream._recv_ranges), []) self.assertEqual(stream._recv_buffer_start, 0)
def test_recv_fin_out_of_order(self): stream = QuicStream(stream_id=0) # add data at offset 8 with FIN self.assertEqual( stream.add_frame( QuicStreamFrame(offset=8, data=b"89012345", fin=True)), None, ) # add data at offset 0 self.assertEqual( stream.add_frame(QuicStreamFrame(offset=0, data=b"01234567")), StreamDataReceived(data=b"0123456789012345", end_stream=True, stream_id=0), )
def test_recv_fin_twice(self): stream = QuicStream(stream_id=0) self.assertEqual( stream.add_frame(QuicStreamFrame(offset=0, data=b"01234567")), StreamDataReceived(data=b"01234567", end_stream=False, stream_id=0), ) self.assertEqual( stream.add_frame( QuicStreamFrame(offset=8, data=b"89012345", fin=True)), StreamDataReceived(data=b"89012345", end_stream=True, stream_id=0), ) self.assertEqual( stream.add_frame( QuicStreamFrame(offset=8, data=b"89012345", fin=True)), StreamDataReceived(data=b"", end_stream=True, stream_id=0), )
def test_recv_already_fully_consumed(self): stream = QuicStream(stream_id=0) # add data at offset 0 self.assertEqual( stream.add_frame(QuicStreamFrame(offset=0, data=b"01234567")), StreamDataReceived(data=b"01234567", end_stream=False, stream_id=0), ) self.assertEqual(bytes(stream._recv_buffer), b"") self.assertEqual(list(stream._recv_ranges), []) self.assertEqual(stream._recv_buffer_start, 8) # add data again at offset 0 self.assertEqual( stream.add_frame(QuicStreamFrame(offset=0, data=b"01234567")), None ) self.assertEqual(bytes(stream._recv_buffer), b"") self.assertEqual(list(stream._recv_ranges), []) self.assertEqual(stream._recv_buffer_start, 8)
def test_recv_empty(self): stream = QuicStream(stream_id=0) self.assertEqual(bytes(stream._recv_buffer), b"") self.assertEqual(list(stream._recv_ranges), []) self.assertEqual(stream._recv_buffer_start, 0) # empty self.assertEqual(stream.add_frame(QuicStreamFrame(offset=0, data=b"")), None) self.assertEqual(bytes(stream._recv_buffer), b"") self.assertEqual(list(stream._recv_ranges), []) self.assertEqual(stream._recv_buffer_start, 0)
def test_recv_ordered_2(self): stream = QuicStream() # add data at start stream.add_frame(QuicStreamFrame(offset=0, data=b"01234567")) self.assertEqual(bytes(stream._recv_buffer), b"01234567") self.assertEqual(list(stream._recv_ranges), [range(0, 8)]) self.assertEqual(stream._recv_buffer_start, 0) # add more data stream.add_frame(QuicStreamFrame(offset=8, data=b"89012345")) self.assertEqual(bytes(stream._recv_buffer), b"0123456789012345") self.assertEqual(list(stream._recv_ranges), [range(0, 16)]) self.assertEqual(stream._recv_buffer_start, 0) # pull data self.assertEqual(stream.pull_data(), b"0123456789012345") self.assertEqual(bytes(stream._recv_buffer), b"") self.assertEqual(list(stream._recv_ranges), []) self.assertEqual(stream._recv_buffer_start, 16)
def test_recv_unordered(self): stream = QuicStream(stream_id=0) # add data at offset 8 self.assertEqual( stream.add_frame(QuicStreamFrame(offset=8, data=b"89012345")), None ) self.assertEqual( bytes(stream._recv_buffer), b"\x00\x00\x00\x00\x00\x00\x00\x0089012345" ) self.assertEqual(list(stream._recv_ranges), [range(8, 16)]) self.assertEqual(stream._recv_buffer_start, 0) # add data at offset 0 self.assertEqual( stream.add_frame(QuicStreamFrame(offset=0, data=b"01234567")), StreamDataReceived(data=b"0123456789012345", end_stream=False, stream_id=0), ) self.assertEqual(bytes(stream._recv_buffer), b"") self.assertEqual(list(stream._recv_ranges), []) self.assertEqual(stream._recv_buffer_start, 16)
def test_recv_fin_then_data(self): stream = QuicStream(stream_id=0) stream.add_frame(QuicStreamFrame(offset=0, data=b"0123", fin=True)) # data beyond final size with self.assertRaises(FinalSizeError) as cm: stream.add_frame(QuicStreamFrame(offset=0, data=b"01234567")) self.assertEqual(str(cm.exception), "Data received beyond final size") # final size would be lowered with self.assertRaises(FinalSizeError) as cm: stream.add_frame(QuicStreamFrame(offset=0, data=b"01", fin=True)) self.assertEqual(str(cm.exception), "Cannot change final size")
def test_recv_fin_without_data(self): stream = QuicStream(stream_id=0) self.assertEqual( stream.add_frame(QuicStreamFrame(offset=0, data=b"", fin=True)), StreamDataReceived(data=b"", end_stream=True, stream_id=0), )
def test_recv_fin_then_data(self): stream = QuicStream(stream_id=0) stream.add_frame(QuicStreamFrame(offset=0, data=b"", fin=True)) with self.assertRaises(Exception) as cm: stream.add_frame(QuicStreamFrame(offset=0, data=b"01234567")) self.assertEqual(str(cm.exception), "Data received beyond FIN")
def test_recv_fin_without_data(self): stream = QuicStream(stream_id=0) stream.add_frame(QuicStreamFrame(offset=0, data=b"", fin=True)) self.assertEqual(stream.pull_data(), b"")
def test_recv_fin_out_of_order(self): stream = QuicStream(stream_id=0) stream.add_frame(QuicStreamFrame(offset=8, data=b"89012345", fin=True)) stream.add_frame(QuicStreamFrame(offset=0, data=b"01234567")) self.assertEqual(stream.pull_data(), b"0123456789012345")