def test_class_to_test_weakness(self):
# regrtest for bug 1522, adapted from test code submitted by Matt Brinkley
# work around the fact that we can't look at PyType directly
# by using this helper function that reflects on PyType (and
# demonstrates here that it's the same as the builtin function
# `type`!)
class_to_type_map = getField(type, 'class_to_type').get(None)
def make_clean():
# gc a few times just to be really sure, since in this
# case we don't really care if it takes a few cycles of GC
# for the garbage to be reached
gc.collect()
time.sleep(0.1)
gc.collect()
time.sleep(0.5)
gc.collect()
def create_proxies():
pi = PythonInterpreter()
pi.exec("""
from java.lang import Comparable
class Dog(Comparable):
def compareTo(self, o):
return 0
def bark(self):
return 'woof woof'
Dog().bark()
""")
pi.cleanup();
make_clean()
# get to steady state first, then verify we don't create new proxies
for i in xrange(2):
create_proxies()
start_size = class_to_type_map.size()
for i in xrange(5):
create_proxies()
make_clean()
self.assertEqual(start_size, class_to_type_map.size())
def test_class_to_test_weakness(self):
# regrtest for bug 1522, adapted from test code submitted by Matt Brinkley
# work around the fact that we can't look at PyType directly
# by using this helper function that reflects on PyType (and
# demonstrates here that it's the same as the builtin function
# `type`!)
class_to_type_map = getField(type, 'class_to_type').get(None)
def make_clean():
# gc a few times just to be really sure, since in this
# case we don't really care if it takes a few cycles of GC
# for the garbage to be reached
gc.collect()
time.sleep(0.1)
gc.collect()
time.sleep(0.5)
gc.collect()
def create_proxies():
pi = PythonInterpreter()
pi.exec("""
from java.lang import Comparable
class Dog(Comparable):
def compareTo(self, o):
return 0
def bark(self):
return 'woof woof'
Dog().bark()
""")
make_clean()
# get to steady state first, then verify we don't create new proxies
for i in xrange(2):
create_proxies()
start_size = class_to_type_map.size()
for i in xrange(5):
create_proxies()
make_clean()
self.assertEqual(start_size, class_to_type_map.size())
def test_class_to_test_weakness(self):
# regrtest for bug 1522, adapted from test code submitted by Matt Brinkley
# work around the fact that we can't look at PyType directly
# by using this helper function that reflects on PyType (and
# demonstrates here that it's the same as the builtin function
# `type`!)
class_to_type_map = getField(type, 'class_to_type').get(None)
def create_proxies():
pi = PythonInterpreter()
pi.exec("""
from java.lang import Comparable
class Dog(Comparable):
def compareTo(self, o):
return 0
def bark(self):
return 'woof woof'
Dog().bark()
""")
# get to steady state first, then verify we don't create new proxies
for i in xrange(2):
create_proxies()
# Ensure the reaper thread can run and clear out weak refs, so
# use this supporting function
test_support.gc_collect()
# Given that taking the len (or size()) of Guava weak maps is
# eventually consistent, we should instead take a len of its
# keys.
start_size = len(list(class_to_type_map))
for i in xrange(5):
create_proxies()
test_support.gc_collect()
self.assertEqual(start_size, len(list(class_to_type_map)))
