def test_apply_overrides_to_defaults(input_defaults: List[str],
overrides: List[str],
expected: Any) -> None:
defaults = ConfigLoaderImpl._parse_defaults(
OmegaConf.create({"defaults": input_defaults}))
parser = OverridesParser.create()
if isinstance(expected, list):
parsed_overrides = parser.parse_overrides(overrides=overrides)
expected_defaults = ConfigLoaderImpl._parse_defaults(
OmegaConf.create({"defaults": expected}))
ConfigLoaderImpl._apply_overrides_to_defaults(
overrides=parsed_overrides, defaults=defaults)
assert defaults == expected_defaults
else:
with expected:
parsed_overrides = parser.parse_overrides(overrides=overrides)
ConfigLoaderImpl._apply_overrides_to_defaults(
overrides=parsed_overrides, defaults=defaults)
def test_delete_by_assigning_null_is_deprecated() -> None:
msg = ("\nRemoving from the defaults list by assigning 'null' "
"is deprecated and will be removed in Hydra 1.1."
"\nUse ~db")
defaults = ConfigLoaderImpl._parse_defaults(
OmegaConf.create({"defaults": [{
"db": "mysql"
}]}))
parsed_overrides = [ConfigLoaderImpl._parse_override("db=null")]
with pytest.warns(expected_warning=UserWarning, match=re.escape(msg)):
assert parsed_overrides[0].override.is_delete()
ConfigLoaderImpl._apply_overrides_to_defaults(
overrides=parsed_overrides, defaults=defaults)
assert defaults == []
