def test_root_0(self):
merkle_tree = MerkleTree()
self.assertEqual(merkle_tree.root, NIL)
def test_root_1(self):
merkle_tree = MerkleTree()
merkle_tree.add(elements[0])
self.assertEqual(merkle_tree.root, elements[0])
def test_add_many(self):
merkle_tree = MerkleTree()
for i in range(len(elements)):
merkle_tree.add(elements[i])
self.assertEqual(len(merkle_tree), i + 1)
self.assertEqual(merkle_tree.get(i), elements[i])