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cpython/Lib/test/test_free_threading/test_tokenize.py
Lysandros Nikolaou 8549559f38
gh-120317: Lock around global state in the tokenize module (#120318)
Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
2024-07-16 11:35:57 +02:00

58 lines
2.2 KiB
Python

import io
import time
import unittest
import tokenize
from functools import partial
from threading import Thread
from test.support import threading_helper
@threading_helper.requires_working_threading()
class TestTokenize(unittest.TestCase):
def test_tokenizer_iter(self):
source = io.StringIO("for _ in a:\n pass")
it = tokenize._tokenize.TokenizerIter(source.readline, extra_tokens=False)
tokens = []
def next_token(it):
while True:
try:
r = next(it)
tokens.append(tokenize.TokenInfo._make(r))
time.sleep(0.03)
except StopIteration:
return
threads = []
for _ in range(5):
threads.append(Thread(target=partial(next_token, it)))
for thread in threads:
thread.start()
for thread in threads:
thread.join()
expected_tokens = [
tokenize.TokenInfo(type=1, string='for', start=(1, 0), end=(1, 3), line='for _ in a:\n'),
tokenize.TokenInfo(type=1, string='_', start=(1, 4), end=(1, 5), line='for _ in a:\n'),
tokenize.TokenInfo(type=1, string='in', start=(1, 6), end=(1, 8), line='for _ in a:\n'),
tokenize.TokenInfo(type=1, string='a', start=(1, 9), end=(1, 10), line='for _ in a:\n'),
tokenize.TokenInfo(type=11, string=':', start=(1, 10), end=(1, 11), line='for _ in a:\n'),
tokenize.TokenInfo(type=4, string='', start=(1, 11), end=(1, 11), line='for _ in a:\n'),
tokenize.TokenInfo(type=5, string='', start=(2, -1), end=(2, -1), line=' pass'),
tokenize.TokenInfo(type=1, string='pass', start=(2, 2), end=(2, 6), line=' pass'),
tokenize.TokenInfo(type=4, string='', start=(2, 6), end=(2, 6), line=' pass'),
tokenize.TokenInfo(type=6, string='', start=(2, -1), end=(2, -1), line=' pass'),
tokenize.TokenInfo(type=0, string='', start=(2, -1), end=(2, -1), line=' pass'),
]
tokens.sort()
expected_tokens.sort()
self.assertListEqual(tokens, expected_tokens)
if __name__ == "__main__":
unittest.main()