f - test coverage for removing channel if closed on signer unblocked

lightning/src/ln/async_signer_tests.rs

@@ -894,13 +894,16 @@ fn test_closing_signed() {
 	nodes[1].node.signer_unblocked(None);
 
 	let node_1_closing_signed = get_event_msg!(nodes[1], MessageSendEvent::SendClosingSigned, nodes[0].node.get_our_node_id());
-	// From here we don't make any new signatures, so there's no need to test blocking the
-	// signer.
+
+	nodes[0].disable_channel_signer_op(&nodes[1].node.get_our_node_id(), &chan_1.2, SignerOp::SignClosingTransaction);
 	nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed);
+	nodes[0].enable_channel_signer_op(&nodes[1].node.get_our_node_id(), &chan_1.2, SignerOp::SignClosingTransaction);
+	nodes[0].node.signer_unblocked(None);
 	let (_, node_0_2nd_closing_signed) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
+
 	nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_2nd_closing_signed.unwrap());
-	let (_, node_1_none) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
-	assert!(node_1_none.is_none());
+	let (_, node_1_closing_signed) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
+	assert!(node_1_closing_signed.is_none());
 
 	assert!(nodes[0].node.list_channels().is_empty());
 	assert!(nodes[1].node.list_channels().is_empty());