app-MAIL-temp/tests/test_prarallel_limiter.py

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import threading
import time
from typing import Optional
import werkzeug.exceptions
from flask_login import login_user
from app.parallel_limiter import _InnerLock
from tests.utils import create_new_user
def test_parallel_limiter(flask_app):
user = create_new_user()
with flask_app.test_request_context():
login_user(user)
pl = _InnerLock("test", max_wait_secs=1)
for loop_id in range(10):
assert pl(lambda x: x)(loop_id) == loop_id
def sleep_thread(pl: _InnerLock, sem: Optional[threading.Semaphore] = None):
if sem is not None:
sem.release()
pl(time.sleep)(1)
def test_too_many_requests(flask_app):
user = create_new_user()
with flask_app.test_request_context():
login_user(user)
sem = threading.Semaphore(0)
pl = _InnerLock("test", max_wait_secs=5)
t = threading.Thread(target=sleep_thread, args=(pl, sem))
t.daemon = True
t.start()
sem.acquire()
try:
got_exception = False
pl(sleep_thread)(pl)
except werkzeug.exceptions.TooManyRequests:
got_exception = True
assert got_exception