def test_os_stat(self):
'''Test sizing os.stat and os.statvfs objects.
'''
try:
stat = os.stat(__file__)
except Exception:
pass
else:
stat_size = asizeof.asizeof(stat)
self.assertTrue(stat_size > 0, stat_size)
refs = asizeof.named_refs(stat)
ref_names = set([name for name, _ in refs])
self.assertTrue(
set(['st_mode', 'st_size', 'st_mtime']) <= ref_names,
ref_names)
try:
stat = os.statvfs(__file__)
except Exception:
pass
else:
stat_size = asizeof.asizeof(stat)
self.assertTrue(stat_size > 0, stat_size)
refs = asizeof.named_refs(stat)
ref_names = set([name for name, _ in refs])
self.assertTrue(
set(['f_bsize', 'f_blocks']) <= ref_names, ref_names)
def test_weakref(self):
'''Test sizing weak references.
'''
alive = Foo('alive')
aref = weakref.ref(alive)
dead = Foo('dead')
dref = weakref.ref(dead)
del dead
aref_size = asizeof.asizeof(aref)
self.assertTrue(aref_size > asizeof.asizeof(alive), aref_size)
refs = asizeof.named_refs(aref)
# TODO: Should a weakref return ('ref', obj)?
dref_size = asizeof.asizeof(dref)
self.assertTrue(dref_size > 0, dref_size)
self.assertNotEqual(dref_size, aref_size)
refs = asizeof.named_refs(dref)
def test_weakref(self):
'''Test sizing weak references.
'''
alive = Foo('alive')
aref = weakref.ref(alive)
dead = Foo('dead')
dref = weakref.ref(dead)
del dead
aref_size = asizeof.asizeof(aref)
self.assertTrue(aref_size > asizeof.asizeof(alive), aref_size)
refs = asizeof.named_refs(aref)
# TODO: Should a weakref return ('ref', obj)?
dref_size = asizeof.asizeof(dref)
self.assertTrue(dref_size > 0, dref_size)
self.assertNotEqual(dref_size, aref_size)
refs = asizeof.named_refs(dref)
def test_enumerate(self):
'''Test sizing enumerators.
'''
enum = enumerate([1,2,3])
enum_size = asizeof.asizeof(enum)
self.assertTrue(enum_size > 0, enum_size)
refs = asizeof.named_refs(enum)
ref_names = set([name for name, _ in refs])
self.assertTrue(set(['__doc__']) <= ref_names, ref_names)
def test_enumerate(self):
'''Test sizing enumerators.
'''
enum = enumerate([1, 2, 3])
enum_size = asizeof.asizeof(enum)
self.assertTrue(enum_size > 0, enum_size)
refs = asizeof.named_refs(enum)
ref_names = set([name for name, _ in refs])
self.assertTrue(set(['__doc__']) <= ref_names, ref_names)
def get_obj_referents(oid):
referents = {}
obj = get_obj(oid)
if type(obj) is dict:
named_objects = asizeof.named_refs(obj)
else:
refs = asizeof._getreferents(obj)
named_objects = [(repr(type(x)), x) for x in refs]
for name, o in named_objects:
referents[name] = (get_ref(o), type(o).__name__, safe_repr(o, clip=48), asizeof.asizeof(o))
return dict(referents=referents)
def get_obj_referents(oid):
referents = {}
obj = get_obj(oid)
if type(obj) is dict:
named_objects = asizeof.named_refs(obj)
else:
refs = asizeof._getreferents(obj)
named_objects = [(repr(type(x)), x) for x in refs]
for name, o in named_objects:
referents[name] = (get_ref(o), type(o).__name__, safe_repr(o, clip=48),
asizeof.asizeof(o))
return dict(referents=referents)
def test_os_stat(self):
'''Test sizing os.stat and os.statvfs objects.
'''
try:
stat = os.stat(__file__)
except Exception:
pass
else:
stat_size = asizeof.asizeof(stat)
self.assertTrue(stat_size > 0, stat_size)
refs = asizeof.named_refs(stat)
ref_names = set([name for name, _ in refs])
self.assertTrue(set(['st_mode', 'st_size', 'st_mtime']) <= ref_names, ref_names)
try:
stat = os.statvfs(__file__)
except Exception:
pass
else:
stat_size = asizeof.asizeof(stat)
self.assertTrue(stat_size > 0, stat_size)
refs = asizeof.named_refs(stat)
ref_names = set([name for name, _ in refs])
self.assertTrue(set(['f_bsize', 'f_blocks']) <= ref_names, ref_names)
def test_exception(self):
'''Test sizing exceptions.
'''
try:
raise Exception("Test exception-sizing.")
except Exception:
etype, exc, etb = sys.exc_info()
try:
tb_size = asizeof.asizeof(etb)
self.assertTrue(tb_size > 0, tb_size)
refs = asizeof.named_refs(etb)
ref_names = set([name for name, _ in refs])
self.assertTrue(set(['tb_frame', 'tb_next']) <= ref_names, ref_names)
ex_size = asizeof.asizeof(etype, exc)
self.assertTrue(ex_size > 0, ex_size)
finally:
del etb
def test_exception(self):
'''Test sizing exceptions.
'''
try:
raise Exception("Test exception-sizing.")
except Exception:
etype, exc, etb = sys.exc_info()
try:
tb_size = asizeof.asizeof(etb)
self.assertTrue(tb_size > 0, tb_size)
refs = asizeof.named_refs(etb)
ref_names = set([name for name, _ in refs])
self.assertTrue(set(['tb_frame', 'tb_next']) <= ref_names, ref_names)
ex_size = asizeof.asizeof(etype, exc)
self.assertTrue(ex_size > 0, ex_size)
finally:
del etb
def _get_edges(self):
"""
Compute the edges for the reference graph.
The function returns a set of tuples (id(a), id(b), ref) if a
references b with the referent 'ref'.
"""
idset = set([id(x) for x in self.objects])
self.edges = set([])
for n in self.objects:
refset = set([id(x) for x in get_referents(n)])
for ref in refset.intersection(idset):
label = ''
members = None
if isinstance(n, dict):
members = n.items()
if not members:
members = named_refs(n)
for (k, v) in members:
if id(v) == ref:
label = k
break
self.edges.add(_Edge(id(n), ref, label))
def _get_edges(self):
"""
Compute the edges for the reference graph.
The function returns a set of tuples (id(a), id(b), ref) if a
references b with the referent 'ref'.
"""
idset = set([id(x) for x in self.objects])
self.edges = set([])
for n in self.objects:
refset = set([id(x) for x in get_referents(n)])
for ref in refset.intersection(idset):
label = ''
members = None
if isinstance(n, dict):
members = n.items()
if not members:
members = named_refs(n)
for (k, v) in members:
if id(v) == ref:
label = k
break
self.edges.add(_Edge(id(n), ref, label))
