def test_fork():
q = mp.Queue()
# this reference should keep the old http client alive in the child process
# to ensure that a new one does not recycle the memory address
http1 = ops._get_http_pool()
parent1 = id(http1)
p = mp.Process(target=_get_http_pool_id, args=(q, ))
p.start()
p.join()
http2 = ops._get_http_pool()
parent2 = id(http2)
child = q.get()
assert parent1 == parent2
assert child != parent1
def _get_http_pool_id(q):
q.put(id(ops._get_http_pool()))
