"""Unit tests for RedisConfig."""

from __future__ import annotations

import pytest

from python_repositories.config import RedisConfig


def test_from_env_loads_uri(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.setenv("REDIS_URI", "redis://example:6379")
    config = RedisConfig.from_env(use_dotenv=False)
    assert config.uri == "redis://example:6379"


def test_from_env_raises_when_uri_missing(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.delenv("REDIS_URI", raising=False)
    with pytest.raises(Exception):
        RedisConfig.from_env(use_dotenv=False)


def test_from_env_respects_custom_env_var_name(
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    monkeypatch.setenv("CUSTOM_REDIS_URI", "redis://custom:6379")
    config = RedisConfig.from_env("CUSTOM_REDIS_URI", use_dotenv=False)
    assert config.uri == "redis://custom:6379"