Add tests

tests/test_config_utils.py

@@ -0,0 +1,29 @@
+import unittest
+import tempfile
+from pathlib import Path
+from unittest.mock import patch
+
+from hysteria_panel import utils
+
+
+class TestConfigUtils(unittest.TestCase):
+    def test_save_load_clear_config(self):
+        with tempfile.TemporaryDirectory() as td:
+            temp_dir = Path(td)
+            temp_file = temp_dir / "config.json"
+
+            with patch.object(utils, 'CONFIG_DIR', temp_dir), patch.object(utils, 'CONFIG_FILE', temp_file):
+                data = {"host": "127.0.0.1", "port": 9999, "secret": "abc", "https": True}
+                utils.save_config(data)
+                self.assertTrue(temp_file.exists())
+
+                loaded = utils.load_config()
+                self.assertEqual(loaded, data)
+
+                utils.clear_config()
+                self.assertFalse(temp_file.exists())
+
+
+if __name__ == '__main__':
+    unittest.main()
+