Recover disk space safely and complete metadata-only backup updates

tests/test_restore_test.py

@@ -149,6 +149,27 @@ MAIL_SENDMAIL_BIN="{self.sendmail}"
         self.assertIn('stale',self.state()['error'])
         self.clean()
 
+    def test_same_size_corruption_is_detected_by_monthly_restore(self):
+        path=self.folder/'wordpress.tar.gz'
+        data=bytearray(path.read_bytes())
+        data[len(data)//2]^=1
+        path.write_bytes(data)
+        self.upload()
+        result=self.execute(ok=False)
+        self.assertIn('Archive checksum/size mismatch',result)
+        self.assertFalse((self.root/'last-success.json').exists())
+        self.assertFalse((self.root/'scratch').exists())
+
+    def test_extra_ai_rem_files_are_downloaded_and_extracted(self):
+        self.make_archive('extra-0','files/extra-0',b'ai-rem database snapshot')
+        self.make_archive('extra-1','files/extra-1',b'ai-rem configuration')
+        self.manifest()
+        self.upload()
+        self.execute()
+        state=json.loads((self.root/'state.json').read_text())
+        for label in ('extra-0','extra-1'):
+            self.assertTrue(any(c['label']==label and c['status']=='SUCCESS' for c in state['components']))
+
     def test_corrupt_archive_is_not_success_and_cleans(self):
         (self.folder/'wordpress.tar.gz').write_bytes(b'corrupt')
         self.upload()