diegobeyl/backtesting

1"""Tests for Configuration Manager"""
2import pytest
3import sys
4import json
5import tempfile
6import os
7from pathlib import Path
8from unittest.mock import MagicMock
9import threading
10
11sys.path.insert(0, str(Path(__file__).parent.parent))
12
13from api.config_manager import ConfigManager, ConfigFileHandler, get_config_manager
14from api.schemas import BacktestConfig, Timeframe
15
16
17class TestConfigManager:
18    """Tests for ConfigManager class"""
19    
20    @pytest.fixture
21    def temp_config_file(self):
22        """Create a temporary config file"""
23        with tempfile.NamedTemporaryFile(mode='w', suffix='.json', delete=False) as f:
24            json.dump({"symbol": "BTCUSD", "timeframe": "D1", "donchian_period": 1}, f)
25            temp_path = f.name
26        yield temp_path
27        if os.path.exists(temp_path):
28            os.remove(temp_path)
29    
30    def test_init_with_existing_file(self, temp_config_file):
31        """Test initialization with existing config file"""
32        manager = ConfigManager(config_path=temp_config_file)
33        config = manager.get_config()
34        assert config.symbol == "BTCUSD"
35    
36    def test_update_config(self, temp_config_file):
37        """Test updating configuration"""
38        manager = ConfigManager(config_path=temp_config_file)
39        new_config = BacktestConfig(symbol="ETHUSD", timeframe="W1")
40        manager.update_config(new_config)
41        assert manager.get_config().symbol == "ETHUSD"
42    
43    def test_update_partial(self, temp_config_file):
44        """Test partial configuration update"""
45        manager = ConfigManager(config_path=temp_config_file)
46        manager.update_partial({"risk_percent": 2.5, "leverage": 50})
47        config = manager.get_config()
48        assert config.risk_percent == 2.5
49        assert config.leverage == 50
50    
51    def test_reset_to_defaults(self, temp_config_file):
52        """Test resetting to defaults"""
53        manager = ConfigManager(config_path=temp_config_file)
54        manager.update_partial({"symbol": "ETHUSD", "donchian_period": 10})
55        manager.reset_to_defaults()
56        config = manager.get_config()
57        assert config.symbol == "BTCUSD"
58        assert config.donchian_period == 1
59    
60    def test_listener_notification(self, temp_config_file):
61        """Test listener notifications"""
62        manager = ConfigManager(config_path=temp_config_file)
63        callback_called = []
64        manager.add_listener(lambda c: callback_called.append(c))
65        manager.update_partial({"risk_percent": 3.0})
66        assert len(callback_called) == 1
67    
68    def test_thread_safety(self, temp_config_file):
69        """Test thread safety"""
70        manager = ConfigManager(config_path=temp_config_file)
71        errors = []
72        def worker(val):
73            try:
74                for _ in range(10):
75                    manager.update_partial({"risk_percent": val})
76                    manager.get_config()
77            except Exception as e:
78                errors.append(e)
79        # Use valid risk_percent values (min 0.1)
80        threads = [threading.Thread(target=worker, args=(i+0.5,)) for i in range(3)]
81        for t in threads: t.start()
82        for t in threads: t.join()
83        assert len(errors) == 0
84
85
86class TestConfigFileHandler:
87    """Tests for ConfigFileHandler"""
88    
89    def test_on_modified_debounce(self):
90        """Test debounce of rapid changes"""
91        mock_manager = MagicMock()
92        handler = ConfigFileHandler(mock_manager)
93        from watchdog.events import FileModifiedEvent
94        event = FileModifiedEvent(src_path="/path/config.json")
95        handler.on_modified(event)
96        handler.on_modified(event)  # Should be debounced
97        assert mock_manager.reload_config.call_count == 1
98    
99    def test_ignores_non_json(self):
100        """Test non-JSON files are ignored"""
101        mock_manager = MagicMock()
102        handler = ConfigFileHandler(mock_manager)
103        from watchdog.events import FileModifiedEvent
104        handler.on_modified(FileModifiedEvent(src_path="/path/file.txt"))
105        mock_manager.reload_config.assert_not_called()
106
107
108if __name__ == "__main__":
109    pytest.main([__file__, "-v"])
110