Show periodic rclone progress and remote verification phases

tests/test_backup.py

@@ -949,9 +949,18 @@ if '--no-block' not in args:
 
     def test_real_crypt_upload_readback_remote_restore(self):
         self.crypt_config()
+        # Exercise periodic stderr statistics during a real throttled crypt
+        # transfer; they must not contaminate captured COMPLETE-marker stdout.
+        (self.wp/'statistics-test.bin').write_bytes(os.urandom(512*1024))
+        with self.config.open('a') as f:
+            f.write('RCLONE_STATS_INTERVAL="100ms"\nRCLONE_BWLIMIT="256k"\n')
         run=self.backup()
         self.assertTrue((run/'UPLOADED').is_file())
         self.assertFalse(list((self.base/'encrypted').rglob('wordpress.tar.zst')))
+        log=next((self.base/'logs').glob('backup_*.log')).read_text()
+        self.assertIn('NOTICE:',log)
+        self.assertIn('Remote upload started',log)
+        self.assertIn('Remote readback passed',log)
         self.run_script('app-restore.sh','--remote-run',run.name,'--verify-only')
 
     def test_failed_readback_does_not_publish_remote_marker(self):