| import pytest | |
| from miniconf import Config, ConfigError, MissingKeyError, load_layers | |
| def test_plain_values(): | |
| cfg = Config({"name": "app", "port": 8080}) | |
| assert cfg["name"] == "app" | |
| assert cfg["port"] == 8080 | |
| assert len(cfg) == 2 | |
| def test_simple_reference(): | |
| cfg = Config({"host": "localhost", "url": "http://${host}/"}) | |
| assert cfg["url"] == "http://localhost/" | |
| def test_two_references_in_one_value(): | |
| cfg = Config({"host": "db", "port": 5432, "dsn": "${host}:${port}"}) | |
| assert cfg["dsn"] == "db:5432" | |
| def test_chained_reference(): | |
| cfg = Config({"a": "x", "b": "${a}-y", "c": "${b}-z"}) | |
| assert cfg["c"] == "x-y-z" | |
| def test_missing_key_raises(): | |
| cfg = Config({"a": "${nope}"}) | |
| with pytest.raises(MissingKeyError): | |
| cfg["a"] | |
| def test_missing_key_message(): | |
| cfg = Config({"a": "${nope}"}) | |
| with pytest.raises(MissingKeyError) as excinfo: | |
| cfg["a"] | |
| assert str(excinfo.value) == "missing key 'nope' referenced from 'a'" | |
| def test_non_string_passthrough(): | |
| cfg = Config({"n": 3, "flag": True, "nested": {"x": 1}}) | |
| assert cfg["n"] == 3 | |
| assert cfg["flag"] is True | |
| assert cfg["nested"] == {"x": 1} | |
| def test_get_returns_default_for_unknown_key(): | |
| cfg = Config({"a": "1"}) | |
| assert cfg.get("zzz") is None | |
| assert cfg.get("zzz", "dflt") == "dflt" | |
| def test_getitem_raises_keyerror_for_unknown_key(): | |
| cfg = Config({"a": "1"}) | |
| with pytest.raises(KeyError): | |
| cfg["zzz"] | |
| def test_raw_does_not_resolve(): | |
| cfg = Config({"a": "1", "b": "${a}"}) | |
| assert cfg.raw("b") == "${a}" | |
| def test_from_layers_override(): | |
| cfg = Config.from_layers({"a": "1", "b": "2"}, {"b": "3"}) | |
| assert cfg.as_dict() == {"a": "1", "b": "3"} | |
| def test_load_layers_rejects_non_dict(): | |
| with pytest.raises(ConfigError): | |
| load_layers({"a": 1}, ["not", "a", "dict"]) | |
| def test_as_dict_resolves_all(): | |
| cfg = Config({"a": "1", "b": "${a}2"}) | |
| assert cfg.as_dict() == {"a": "1", "b": "12"} | |
| def test_config_rejects_non_dict(): | |
| with pytest.raises(TypeError): | |
| Config([("a", 1)]) | |