"""Tests for configuration system."""

import pytest
import os
import tempfile
from pathlib import Path
from unittest.mock import patch
from src.core.config import Config, get_config


class TestConfig:
    """Tests for Config class."""
    
    def test_config_initialization(self, tmp_path):
        """Test config initialization."""
        config_file = tmp_path / "config.yaml"
        config = Config(config_file=str(config_file))
        assert config is not None
        assert config.config_dir is not None
        assert config.data_dir is not None
    
    def test_config_get(self, tmp_path):
        """Test config get method."""
        config_file = tmp_path / "config.yaml"
        config = Config(config_file=str(config_file))
        # Test nested key access
        value = config.get('paper_trading.default_capital')
        assert value is not None
    
    def test_config_set(self, tmp_path):
        """Test config set method."""
        config_file = tmp_path / "config.yaml"
        config = Config(config_file=str(config_file))
        config.set('paper_trading.default_capital', 200.0)
        value = config.get('paper_trading.default_capital')
        assert value == 200.0
    
    def test_config_defaults(self, tmp_path):
        """Test default configuration values."""
        config_file = tmp_path / "config.yaml"
        config = Config(config_file=str(config_file))
        assert config.get('paper_trading.default_capital') == 100.0
        assert config.get('database.type') == 'postgresql'