def test__dependent_reference_counter_after_addref(self):
num_refs = 10
ref1 = ReferenceCounter()
ref2 = ReferenceCounter()
for i in range(num_refs - 1):
ref1.add_reference()
ref1.depend_on_counter(ref2)
self.assertEquals(ref1.get_reference_count(), num_refs - 1)
self.assertEquals(ref2.get_reference_count(), 1)
ref1.add_reference()
self.assertEquals(ref1.get_reference_count(), num_refs)
for iteration, _ in iterate(range(num_refs)):
ref1.remove_reference()
if iteration.last:
self.assertEquals(ref2.get_reference_count(), 0)
else:
self.assertEquals(ref2.get_reference_count(), 1)
def test__dependent_reference_counter(self):
ref1 = ReferenceCounter()
ref2 = ReferenceCounter()
ref1.depend_on_counter(ref2)
self.assertEquals(ref1.get_reference_count(), 0)
self.assertEquals(ref2.get_reference_count(), 0)
ref1.add_reference()
self.assertEquals(ref1.get_reference_count(), 1)
self.assertEquals(ref2.get_reference_count(), 1)
ref1.add_reference()
self.assertEquals(ref1.get_reference_count(), 2)
self.assertEquals(ref2.get_reference_count(), 1)
ref1.remove_reference()
self.assertEquals(ref1.get_reference_count(), 1)
self.assertEquals(ref2.get_reference_count(), 1)
ref1.remove_reference()
self.assertEquals(ref1.get_reference_count(), 0)
self.assertEquals(ref2.get_reference_count(), 0)
