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import io
import pathlib
import pytest
from telethon import utils
from telethon.tl.types import (
MessageMediaGame, Game, PhotoEmpty
)
def test_game_input_media_memory_error():
large_long = 2**62
media = MessageMediaGame(Game(
id=large_long, # <- key to trigger `MemoryError`
access_hash=large_long,
short_name='short_name',
title='title',
description='description',
photo=PhotoEmpty(large_long),
))
input_media = utils.get_input_media(media)
bytes(input_media) # <- shouldn't raise `MemoryError`
def test_private_get_extension():
# Positive cases
png_header = bytes.fromhex('89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52')
png_buffer = io.BytesIO(png_header)
class CustomFd:
def __init__(self, name):
self.name = name
assert utils._get_extension('foo.bar.baz') == '.baz'
assert utils._get_extension(pathlib.Path('foo.bar.baz')) == '.baz'
assert utils._get_extension(CustomFd('foo.bar.baz')) == '.baz'
# Negative cases
null_header = bytes.fromhex('00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00')
null_buffer = io.BytesIO(null_header)
empty_header = bytes()
empty_buffer = io.BytesIO(empty_header)
assert utils._get_extension('foo') == ''
assert utils._get_extension(pathlib.Path('foo')) == ''
assert utils._get_extension(null_header) == ''
assert utils._get_extension(null_buffer) == ''
assert utils._get_extension(null_buffer) == '' # make sure it did seek back
assert utils._get_extension(empty_header) == ''
assert utils._get_extension(empty_buffer) == ''
assert utils._get_extension(empty_buffer) == '' # make sure it did seek back
assert utils._get_extension(CustomFd('foo')) == ''
def test_rle_encode_trailing_zeros():
assert utils._rle_encode(b'\x12\x00\x00\x00\x00') == b'\x12\x00\x04'
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