def test__create_datadir(mocker, default_conf, caplog) -> None:
mocker.patch('os.path.isdir', MagicMock(return_value=False))
md = MagicMock()
mocker.patch('os.makedirs', md)
cfg = Configuration(Namespace())
cfg._create_datadir(default_conf, '/foo/bar')
assert md.call_args[0][0] == "/foo/bar"
assert log_has('Created data directory: /foo/bar', caplog.record_tuples)
