How to use the aioquic.quic.packet.QuicStreamFrame function in aioquic

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_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_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_fin(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),
        )

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_ordered(self):
        stream = QuicStream(stream_id=0)

        # add data at start
        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 more data
        self.assertEqual(
            stream.add_frame(QuicStreamFrame(offset=8, data=b"89012345")),
            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)

        # add data and fin
        self.assertEqual(
            stream.add_frame(QuicStreamFrame(offset=16, data=b"67890123", fin=True)),
            StreamDataReceived(data=b"67890123", end_stream=True, stream_id=0),
        )
        self.assertEqual(bytes(stream._recv_buffer), b"")
        self.assertEqual(list(stream._recv_ranges), [])
        self.assertEqual(stream._recv_buffer_start, 24)

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_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_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),
        )