mirror of
https://github.com/LonamiWebs/Telethon.git
synced 2024-11-23 01:46:35 +03:00
77 lines
1.9 KiB
Python
77 lines
1.9 KiB
Python
from typing import Tuple
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from pytest import raises
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from telethon._impl.mtproto import Abridged
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class Output(bytearray):
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__slots__ = ()
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def __call__(self, data: bytes) -> None:
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self += data
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def setup_pack(n: int) -> Tuple[Abridged, bytes, Output]:
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input = bytes(x & 0xFF for x in range(n))
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return Abridged(), input, Output()
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def test_pack_empty() -> None:
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transport, input, output = setup_pack(0)
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transport.pack(input, output)
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assert output == b"\xef\0"
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def test_pack_non_padded() -> None:
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transport, input, output = setup_pack(7)
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with raises(AssertionError):
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transport.pack(input, output)
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def test_pack_normal() -> None:
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transport, input, output = setup_pack(128)
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transport.pack(input, output)
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assert output[:2] == b"\xef\x20"
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assert output[2:] == input
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def pack_large() -> None:
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transport, input, output = setup_pack(1024)
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transport.pack(input, output)
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assert output[:5] == b"\xef\x7f\0\x01\0"
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assert output[5:] == input
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def test_unpack_small() -> None:
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transport = Abridged()
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input = b"\x01"
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output = bytearray()
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with raises(ValueError) as e:
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transport.unpack(input, output)
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e.match("missing bytes")
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def test_unpack_normal() -> None:
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transport, input, packed = setup_pack(128)
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unpacked = bytearray()
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transport.pack(input, packed)
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transport.unpack(packed[1:], unpacked)
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assert input == unpacked
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def test_unpack_two_at_once() -> None:
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transport, input, packed = setup_pack(128)
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unpacked = bytearray()
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transport.pack(input, packed)
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n = transport.unpack(packed[1:] + packed[1:], unpacked)
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assert input == unpacked
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assert n == len(packed[1:])
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def unpack_large() -> None:
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transport, input, packed = setup_pack(1024)
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unpacked = bytearray()
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transport.pack(input, packed)
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transport.unpack(packed[1:], unpacked)
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assert input == unpacked
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