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#! /usr/bin/env python
# -*- coding: utf-8 -*-
# vi:ts=4:et
import pycurl
import unittest
import gc
import flaky
import weakref
from . import util
debug = False
@flaky.flaky(max_runs=3)
class MultiMemoryMgmtTest(unittest.TestCase):
def test_opensocketfunction_collection(self):
self.check_callback(pycurl.M_SOCKETFUNCTION)
def test_seekfunction_collection(self):
self.check_callback(pycurl.M_TIMERFUNCTION)
def check_callback(self, callback):
# Note: extracting a context manager seems to result in
# everything being garbage collected even if the C code
# does not clear the callback
object_count = 0
gc.collect()
# gc.collect() can create new objects... running it again here
# settles tracked object count for the actual test below
gc.collect()
object_count = len(gc.get_objects())
c = pycurl.CurlMulti()
c.setopt(callback, lambda x: True)
del c
gc.collect()
new_object_count = len(gc.get_objects())
# it seems that GC sometimes collects something that existed
# before this test ran, GH issues #273/#274
self.assertIn(new_object_count, (object_count, object_count-1))
def test_curl_ref(self):
c = util.DefaultCurl()
m = pycurl.CurlMulti()
ref = weakref.ref(c)
m.add_handle(c)
del c
assert ref()
gc.collect()
assert ref()
m.remove_handle(ref())
gc.collect()
assert ref() is None
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