"""Tests for config module"""

class TestConfig:
    """Tests for Config class"""

    def test_config_singleton(self):
        """Should return same instance"""
        from luxx.config import config, Config
        config1 = Config()
        config2 = Config()
        assert config1 is config2
        assert config is config1

    def test_get_with_default(self):
        """Should return default value for missing key"""
        from luxx.config import config
        result = config.get("nonexistent.key", "default_value")
        assert result == "default_value"

    def test_get_nested_key(self):
        """Should support dot-separated keys"""
        from luxx.config import config
        # These should return configured or default values
        secret = config.get("app.secret_key")
        assert secret is not None

    def test_properties_have_defaults(self):
        """All properties should have sensible defaults"""
        from luxx.config import config
        assert isinstance(config.debug, bool)
        assert isinstance(config.app_host, str)
        assert isinstance(config.app_port, int)
        assert isinstance(config.database_url, str)
        assert config.app_port == 8000

    def test_tools_config_properties(self):
        """Tools configuration properties should work"""
        from luxx.config import config
        assert config.tools_enable_cache is not None
        assert config.tools_cache_ttl > 0
        assert config.tools_max_workers > 0
        assert config.tools_max_iterations > 0

    def test_llm_config_properties(self):
        """LLM configuration properties should work"""
        from luxx.config import config
        assert config.llm_provider is not None
        assert config.llm_api_url is not None