import sys
from pathlib import Path

# Add api directory to path
api_dir = Path(__file__).parent.parent / 'api'
sys.path.insert(0, str(api_dir))
import unittest
from unittest.mock import patch, MagicMock
from container_manager import ContainerManager

class TestContainerManager(unittest.TestCase):
    @patch('docker.from_env')
    def test_list_containers(self, mock_from_env):
        mock_client = MagicMock()
        mock_container = MagicMock()
        mock_container.id = 'abc'
        mock_container.name = 'test'
        mock_container.status = 'running'
        mock_container.image.tags = ['img']
        mock_container.labels = {}
        mock_client.containers.list.return_value = [mock_container]
        mock_from_env.return_value = mock_client
        mgr = ContainerManager()
        result = mgr.list_containers()
        self.assertEqual(result[0]['name'], 'test')
    @patch('docker.from_env')
    def test_start_stop_restart_container(self, mock_from_env):
        mock_client = MagicMock()
        mock_container = MagicMock()
        mock_client.containers.get.return_value = mock_container
        mock_from_env.return_value = mock_client
        mgr = ContainerManager()
        # Start
        self.assertTrue(mgr.start_container('test'))
        mock_container.start.assert_called_once()
        # Stop
        self.assertTrue(mgr.stop_container('test'))
        mock_container.stop.assert_called_once()
        # Restart
        self.assertTrue(mgr.restart_container('test'))
        mock_container.restart.assert_called_once()
        # Exception cases
        mock_client.containers.get.side_effect = Exception('fail')
        self.assertFalse(mgr.start_container('bad'))
        self.assertFalse(mgr.stop_container('bad'))
        self.assertFalse(mgr.restart_container('bad'))

if __name__ == '__main__':
    unittest.main()