From e4d9551a6ae84ca377fb737665a282809eccd35a Mon Sep 17 00:00:00 2001
From: yyforyongyu <yy2452@columbia.edu>
Date: Tue, 22 Feb 2022 13:14:48 +0800
Subject: [PATCH] itest: check feeService against nil upon shutdown [skip ci]

---
 lntest/harness_net.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lntest/harness_net.go b/lntest/harness_net.go
index 03faf9e7c..65bb007f7 100644
--- a/lntest/harness_net.go
+++ b/lntest/harness_net.go
@@ -266,7 +266,11 @@ func (n *NetworkHarness) Stop() {
 	close(n.lndErrorChan)
 	n.cancel()
 
-	n.feeService.stop()
+	// feeService may not be created. For instance, running a non-exist
+	// test case.
+	if n.feeService != nil {
+		n.feeService.stop()
+	}
 }
 
 // extraArgsEtcd returns extra args for configuring LND to use an external etcd