Validate iOS backup path before checks

tests/test_check_ios_backup.py

@@ -3,6 +3,8 @@
 # Use of this software is governed by the MVT License 1.1 that can be found at
 #   https://license.mvt.re/1.1/
 
+import shutil
+
 from click.testing import CliRunner
 
 from mvt.ios.cli import check_backup
@@ -16,3 +18,18 @@ class TestCheckBackupCommand:
         path = get_ios_backup_folder()
         result = runner.invoke(check_backup, [path])
         assert result.exit_code == 0
+
+    def test_check_finds_backup_in_subfolder(self, tmp_path, caplog):
+        runner = CliRunner()
+        backup_path = tmp_path / "MobileSync" / "Backup" / "device-id"
+        shutil.copytree(get_ios_backup_folder(), backup_path)
+
+        result = runner.invoke(check_backup, [str(backup_path.parent)])
+        assert result.exit_code == 0
+        assert f"Found iTunes backup in subfolder: {backup_path}" in caplog.text
+
+    def test_check_rejects_non_backup_folder(self, tmp_path, caplog):
+        runner = CliRunner()
+        result = runner.invoke(check_backup, [str(tmp_path)])
+        assert result.exit_code == 1
+        assert "does not appear to be an iTunes backup folder" in caplog.text