import unittest

from src.gui.main_window import MainWindow


class TestProjectStateCompat(unittest.TestCase):
    def test_legacy_project_without_cursor_positions(self):
        legacy = {
            "name": "demo",
            "open_files": ["C:/demo/song.lmd"],
            "active_file": "C:/demo/song.lmd",
        }
        self.assertEqual({}, MainWindow._extract_cursor_positions(legacy))

    def test_cursor_positions_parsing_is_defensive(self):
        data = {
            "cursor_positions": {
                "C:/demo/song.lmd": "42",
                "C:/demo/song2.lmd": -5,
                "C:/demo/song3.lmd": "bad",
                123: 7,
            }
        }
        expected = {
            "C:/demo/song.lmd": 42,
            "C:/demo/song2.lmd": 0,
        }
        self.assertEqual(expected, MainWindow._extract_cursor_positions(data))


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