def test_deserialize_node(generate_root, simple_actions, mock_policy, default_config):
serializer = MoleculeSerializer()
root = generate_root("CCCCOc1ccc(CC(=O)N(C)O)cc1")
action_list, prior_list = mock_policy(root.state.mols[0])
root.expand()
child = root.promising_child()
node_serialized = root.serialize(serializer)
deserializer = MoleculeDeserializer(serializer.store)
root_new = Node.from_dict(node_serialized, None, default_config, deserializer)
assert len(root_new.children()) == 1
new_child = root_new.children()[0]
assert root_new.children_view()["values"] == root.children_view()["values"]
assert root_new.children_view()["priors"] == root.children_view()["priors"]
assert (
root_new.children_view()["visitations"] == root.children_view()["visitations"]
)
assert root_new.is_expanded
assert new_child.children_view()["values"] == child.children_view()["values"]
assert new_child.children_view()["priors"] == child.children_view()["priors"]
assert (
new_child.children_view()["visitations"] == child.children_view()["visitations"]
)
assert not new_child.is_expanded
assert str(root_new.state) == str(root.state)
assert str(new_child.state) == str(child.state)
def from_json(cls, filename: str, config: Configuration) -> "SearchTree":
"""
Create a new search tree by deserialization from a JSON file
:param filename: the path to the JSON node
:param config: the configuration of the search
:return: a deserialized tree
"""
tree = SearchTree(config)
with open(filename, "r") as fileobj:
dict_ = json.load(fileobj)
mol_deser = MoleculeDeserializer(dict_["molecules"])
tree.root = Node.from_dict(dict_["tree"], tree, config, mol_deser)
return tree