import unittest import pytest from axolotl.utils.dict import DictDefault class DictDefaultTest(unittest.TestCase): def test_dict_default(self): cfg = DictDefault( { "key_a": {"key_b": "value_a"}, "key_c": "value_c", "key_d": ["value_d", "value_e"], } ) assert ( cfg.key_a.key_b == "value_a" ), "DictDefault should return value for existing nested keys" assert ( cfg.key_c == "value_c" ), "DictDefault should return value for existing keys" assert ( cfg.key_d[0] == "value_d" ), "DictDefault should return value for existing keys in list" assert ( "value_e" in cfg.key_d ), "DictDefault should support in operator for existing keys in list" def test_dict_or_operator(self): cfg = DictDefault( { "key_a": {"key_b": "value_a"}, "key_c": "value_c", "key_d": ["value_d", "value_e"], "key_f": "value_f", } ) cfg = cfg | DictDefault({"key_a": {"key_b": "value_b"}, "key_f": "value_g"}) assert ( cfg.key_a.key_b == "value_b" ), "DictDefault should support OR operator for existing nested keys" assert cfg.key_c == "value_c", "DictDefault should not delete existing key" assert cfg.key_d == [ "value_d", "value_e", ], "DictDefault should not overwrite existing keys in list" assert ( cfg.key_f == "value_g" ), "DictDefault should support OR operator for existing key" def test_dict_missingkey(self): cfg = DictDefault({}) assert cfg.random_key is None, "DictDefault should return None for missing keys" def test_dict_nested_missingparentkey(self): """ Due to subclassing Dict, DictDefault will error if we try to access a nested key whose parent key does not exist. """ cfg = DictDefault({}) with pytest.raises( AttributeError, match=r"'NoneType' object has no attribute 'another_random_key'", ): cfg.random_key.another_random_key def test_dict_shorthand_assignment(self): """ Shorthand assignment is said to not be supported if subclassed. However, their example raises error instead of None. This test ensures that it is supported for current implementation. Ref: https://github.com/mewwts/addict#default-values """ cfg = DictDefault({"key_a": {"key_b": "value_a"}}) cfg.key_a.key_b = "value_b" assert cfg.key_a.key_b == "value_b", "Shorthand assignment should be supported"