def testObjSmartPointer(self):
# Uncomment to see more debug info about creation of objects and ref counts.
# Registry.getInstance().setShouldPrint(True)
# Create Obj.
o = Obj()
self.assertEqual(objCount(), 1)
# Create a shared pointer to an Obj together with an Obj.
ptrToObj = o.giveSharedPtrToObj()
self.assertEqual(objCount(), 2)
# Delete the old Obj.
o = None
self.assertEqual(objCount(), 1)
# Get a wrapper to the Obj inside of the shared pointer, object count should not change.
obj = ptrToObj.data()
self.assertEqual(objCount(), 1)
obj.m_integer = 50
self.assertEqual(obj.m_integer, 50)
# Set and get a member value via shared pointer (like operator->).
ptrToObj.m_integer = 100
self.assertEqual(ptrToObj.m_integer, 100)
# Get inner PyObject via shared pointer (like operator->) and set value in it.
ptrToObj.m_internalInteger.m_int = 200
self.assertEqual(ptrToObj.m_internalInteger.m_int, 200)
# Pass smart pointer as argument to a method, return value is the value of m_integer of
# passed Obj inside the smart pointer.
result = ptrToObj.takeSharedPtrToObj(ptrToObj)
self.assertEqual(result, 100)
# Pass an Integer as an argument that returns itself.
result = ptrToObj.takeInteger(ptrToObj.m_internalInteger)
self.assertEqual(integerCount(), 2)
result = None
if integerCount() > 1:
gc.collect()
print('Running garbage collector for reference test', file=sys.stderr)
self.assertEqual(integerCount(), 1)
# Make a copy of the shared pointer, object count should not change.
ptrToObj2 = copy(ptrToObj)
self.assertEqual(objCount(), 1)
# Delete the first shared pointer, object count should not change because the second
# one still has a reference.
del ptrToObj
self.assertEqual(objCount(), 1)
# Delete the second smart pointer, object should be deleted.
del ptrToObj2
self.assertEqual(objCount(), 0)
self.assertEqual(integerCount(), 0)
def testInvalidParameter(self):
# Create Obj.
o = Obj()
# Create a shared pointer to an Obj together with an Obj.
ptrToObj = o.giveSharedPtrToObj()
try:
ptrToObj.typo
self.assertFail()
except AttributeError as error:
self.assertEqual(error.args[0], "'smart.SharedPtr_Obj' object has no attribute 'typo'")