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202938ae73
Allow config.json to reference environment variables via ${VAR_NAME}
syntax. Variables are resolved at runtime by resolve_config_env_vars(),
keeping the raw templates in the Pydantic model so save_config()
preserves them. This lets secrets live in a separate env file
(e.g. loaded by systemd EnvironmentFile=) instead of plain text
in config.json.
83 lines
2.8 KiB
Python
83 lines
2.8 KiB
Python
import json
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import pytest
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from nanobot.config.loader import (
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_resolve_env_vars,
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load_config,
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resolve_config_env_vars,
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save_config,
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)
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class TestResolveEnvVars:
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def test_replaces_string_value(self, monkeypatch):
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monkeypatch.setenv("MY_SECRET", "hunter2")
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assert _resolve_env_vars("${MY_SECRET}") == "hunter2"
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def test_partial_replacement(self, monkeypatch):
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monkeypatch.setenv("HOST", "example.com")
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assert _resolve_env_vars("https://${HOST}/api") == "https://example.com/api"
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def test_multiple_vars_in_one_string(self, monkeypatch):
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monkeypatch.setenv("USER", "alice")
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monkeypatch.setenv("PASS", "secret")
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assert _resolve_env_vars("${USER}:${PASS}") == "alice:secret"
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def test_nested_dicts(self, monkeypatch):
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monkeypatch.setenv("TOKEN", "abc123")
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data = {"channels": {"telegram": {"token": "${TOKEN}"}}}
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result = _resolve_env_vars(data)
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assert result["channels"]["telegram"]["token"] == "abc123"
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def test_lists(self, monkeypatch):
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monkeypatch.setenv("VAL", "x")
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assert _resolve_env_vars(["${VAL}", "plain"]) == ["x", "plain"]
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def test_ignores_non_strings(self):
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assert _resolve_env_vars(42) == 42
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assert _resolve_env_vars(True) is True
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assert _resolve_env_vars(None) is None
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assert _resolve_env_vars(3.14) == 3.14
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def test_plain_strings_unchanged(self):
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assert _resolve_env_vars("no vars here") == "no vars here"
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def test_missing_var_raises(self):
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with pytest.raises(ValueError, match="DOES_NOT_EXIST"):
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_resolve_env_vars("${DOES_NOT_EXIST}")
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class TestResolveConfig:
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def test_resolves_env_vars_in_config(self, tmp_path, monkeypatch):
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monkeypatch.setenv("TEST_API_KEY", "resolved-key")
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config_path = tmp_path / "config.json"
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config_path.write_text(
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json.dumps(
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{"providers": {"groq": {"apiKey": "${TEST_API_KEY}"}}}
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),
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encoding="utf-8",
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)
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raw = load_config(config_path)
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assert raw.providers.groq.api_key == "${TEST_API_KEY}"
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resolved = resolve_config_env_vars(raw)
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assert resolved.providers.groq.api_key == "resolved-key"
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def test_save_preserves_templates(self, tmp_path, monkeypatch):
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monkeypatch.setenv("MY_TOKEN", "real-token")
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config_path = tmp_path / "config.json"
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config_path.write_text(
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json.dumps(
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{"channels": {"telegram": {"token": "${MY_TOKEN}"}}}
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),
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encoding="utf-8",
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)
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raw = load_config(config_path)
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save_config(raw, config_path)
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saved = json.loads(config_path.read_text(encoding="utf-8"))
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assert saved["channels"]["telegram"]["token"] == "${MY_TOKEN}"
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