f add cmu to write fail test

Author: domZippilli

lightning/src/util/persist.rs

@@ -1081,6 +1081,8 @@ mod tests {
 			let mut added_monitors = nodes[1].chain_monitor.added_monitors.lock().unwrap();
 			let update_map = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap();
 			let update_id = update_map.get(&added_monitors[0].0.to_channel_id()).unwrap();
+			let cmu_map = nodes[1].chain_monitor.monitor_updates.lock().unwrap();
+			let cmu = &cmu_map.get(&added_monitors[0].0.to_channel_id()).unwrap()[0];
 			let test_txo = OutPoint {
 				txid: Txid::from_hex(
 					"8984484a580b825b9972d7adb15050b3ab624ccd731946b3eeddb92f4e7ef6be",
@@ -1107,7 +1109,7 @@ mod tests {
 					panic!("Returned InProgress when shouldn't have")
 				}
 			}
-			match ro_persister.update_persisted_channel(test_txo, None, &added_monitors[0].1, update_id.2) {
+			match ro_persister.update_persisted_channel(test_txo, Some(cmu), &added_monitors[0].1, update_id.2) {
 				ChannelMonitorUpdateStatus::UnrecoverableError => {
 					// correct result
 				}