def testNotShared(self):
a = ClassNonDefConstImpl(12, 30)
# |a| is not shared with C++. So, the call to DoUniq should invalidate it.
a.invalidated = True
self.assertEqual(virtual_funcs.DoUniq(a), -1)
with self.assertRaises(ValueError):
_ = a.a
with self.assertRaises(ValueError):
virtual_funcs.DoUniq(a)
def testShared(self):
a = ClassNonDefConstImpl(1, 23)
b = virtual_funcs.Manager(a)
# |a| is shared between C++ and Python. So, cannot give it to Func.
self.assertEqual(b.DoIt(), 23)
with self.assertRaises(ValueError):
virtual_funcs.DoUniq(a)
# Check |a| is intact.
self.assertEqual(a.a, 1)
def testSharedFreeAfterUse(self):
a = ClassNonDefConstImpl(2, 3)
b = virtual_funcs.Manager(a)
self.assertEqual(b.DoIt(), 6)
# Remove the reference in |b|
del b
# We should be able to call Func again
a.invalidated = True
self.assertEqual(virtual_funcs.DoUniq(a), -1)
with self.assertRaises(ValueError):
_ = a.a