When a TC failed to initiliase the database, the following test are SKIPPED
When a TC failed to initiliase the database, the other test of the same TestCase
are skipped with an explicite message instead of failing later for with an
unrelated message.
import gc, types, weakref
from cubicweb.schema import CubicWebRelationSchema, CubicWebEntitySchema
listiterator = type(iter([]))
IGNORE_CLASSES = (
type, tuple, dict, list, set, frozenset, type(len),
weakref.ref, weakref.WeakKeyDictionary,
listiterator,
property, classmethod,
types.ModuleType, types.FunctionType, types.MethodType,
types.MemberDescriptorType, types.GetSetDescriptorType,
)
def _get_counted_class(obj, classes):
for cls in classes:
if isinstance(obj, cls):
return cls
raise AssertionError()
def gc_info(countclasses,
ignoreclasses=IGNORE_CLASSES,
viewreferrersclasses=(), showobjs=False, maxlevel=1):
gc.collect()
gc.collect()
counters = {}
ocounters = {}
for obj in gc.get_objects():
if isinstance(obj, countclasses):
cls = _get_counted_class(obj, countclasses)
try:
counters[cls.__name__] += 1
except KeyError:
counters[cls.__name__] = 1
elif not isinstance(obj, ignoreclasses):
try:
key = '%s.%s' % (obj.__class__.__module__,
obj.__class__.__name__)
except AttributeError:
key = str(obj)
try:
ocounters[key] += 1
except KeyError:
ocounters[key] = 1
if isinstance(obj, viewreferrersclasses):
print ' ', obj, referrers(obj, showobjs, maxlevel)
return counters, ocounters, gc.garbage
def referrers(obj, showobj=False, maxlevel=1):
objreferrers = _referrers(obj, maxlevel)
try:
return sorted(set((type(x), showobj and x or getattr(x, '__name__', '%#x' % id(x)))
for x in objreferrers))
except TypeError:
s = set()
unhashable = []
for x in objreferrers:
try:
s.add(x)
except TypeError:
unhashable.append(x)
return sorted(s) + unhashable
def _referrers(obj, maxlevel, _seen=None, _level=0):
interesting = []
if _seen is None:
_seen = set()
for x in gc.get_referrers(obj):
if id(x) in _seen:
continue
_seen.add(id(x))
if isinstance(x, types.FrameType):
continue
if isinstance(x, (CubicWebRelationSchema, CubicWebEntitySchema)):
continue
if isinstance(x, (list, tuple, set, dict, listiterator)):
if _level >= maxlevel:
pass
#interesting.append(x)
else:
interesting += _referrers(x, maxlevel, _seen, _level+1)
else:
interesting.append(x)
return interesting