def test_gc(self):
"""refcount agnostic check that contained objects are freed"""
def d(capsule, parent):
return r[0]
class Obj(object):
pass
c = Obj()
p = Obj()
r = [Obj()]
weak_c = weakref.ref(c)
weak_p = weakref.ref(p)
weak_r0 = weakref.ref(r[0])
weak_d = weakref.ref(d)
v = View(c, p, d)
weak_v = weakref.ref(v)
del c, p, d
self.assert_(weak_c() is not None)
self.assert_(weak_p() is not None)
self.assert_(weak_d() is not None)
del v
self.assert_(weak_v() is None)
self.assert_(weak_c() is None)
self.assert_(weak_p() is None)
self.assert_(weak_d() is None)
self.assert_(weak_r0() is not None)
del r[0]
self.assert_(weak_r0() is None)
def test_destructor(self):
def d(capsule, parent):
success.append(capsule is c)
success.append(parent is None)
success = []
c = []
view_id = id(View(c, destructor=d))
self.assert_(success)
self.assert_(success[0])
self.assert_(success[1])
def __repr__(self):
return "*%s*" % (View.__repr__(self), )
def test_repr(self):
z = 0
cname = re.findall(r"'([^']+)'", repr(View))[0]
oname, ovalue = re.findall(r"<([^)]+)\(([^)]+)\)>", repr(View(0)))[0]
self.assertEqual(oname, cname)
self.assertEqual(id(z), int(ovalue, 16))
def test_weakref(self):
v = View([])
weak_v = weakref.ref(v)
self.assert_(weak_v() is v)
del v
self.assert_(weak_v() is None)
def test_parent_property(self):
c = []
p = []
v = View(c, p)
self.assert_(v.parent is p)
def test___array_struct___property(self):
c = []
v = View(c)
self.assert_(v.__array_struct__ is c)
def __repr__(self):
return "*%s*" % (View.__repr__(self),)