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|
# mode: run
"""
>>> class SampleException(Exception): pass
>>> def assert_refcount(rc1, rc2, func):
... # test ref-counts, but allow a bit of freedom
... assert rc2 <= rc1 + 4, "%s, before: %d, after %d" % (
... func.__name__, rc1, rc2)
>>> def run_test(repeat, test_func):
... initial_refcount = get_refcount(SampleException)
... for i in range(repeat):
... try: raise SampleException
... except:
... refcount1 = get_refcount(SampleException)
... test_func()
... refcount2 = get_refcount(SampleException)
...
... assert_refcount(refcount1, refcount2, test_func)
... assert_refcount(initial_refcount, refcount2, test_func)
... refcount3 = get_refcount(SampleException)
... assert_refcount(refcount1, refcount3, test_func)
... assert_refcount(initial_refcount, refcount3, test_func)
>>> run_test(50, test_no_exception_else)
>>> run_test(50, test_no_exception)
>>> run_test(50, test_exception)
>>> run_test(50, test_finally)
"""
from cpython.ref cimport PyObject
def get_refcount(obj):
return (<PyObject*>obj).ob_refcnt
def test_no_exception():
try:
a = 1+1
except:
pass
def test_no_exception_else():
try:
a = 1+1
except:
pass
else:
b = 1+1
def test_exception():
try:
raise TypeError
except:
pass
def test_finally():
try:
a = 1+1
finally:
b = 1+1
|
