From 3f16d13fe2bd4ab423390b753072be0af970c602 Mon Sep 17 00:00:00 2001
From: eladkeyshawn <elad.keyshawn@gmail.com>
Date: Fri, 9 Apr 2021 15:55:40 +0300
Subject: [PATCH] add test

---
 lib/internal/repl/utils.js                    | 2 +-
 test/parallel/test-repl-history-navigation.js | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/lib/internal/repl/utils.js b/lib/internal/repl/utils.js
index a1c7ef8a81a5a1..63988978d12afb 100644
--- a/lib/internal/repl/utils.js
+++ b/lib/internal/repl/utils.js
@@ -394,7 +394,7 @@ function setupPreview(repl, contextSymbol, bufferSymbol, active) {
     }
 
     const inputPreviewCallback = (error, inspected) => {
-      if (inspected === null) {
+      if (inspected == null) {
         return;
       }
 
diff --git a/test/parallel/test-repl-history-navigation.js b/test/parallel/test-repl-history-navigation.js
index 4dd9c350229b19..df9a468f221d37 100644
--- a/test/parallel/test-repl-history-navigation.js
+++ b/test/parallel/test-repl-history-navigation.js
@@ -68,6 +68,8 @@ const prev = process.features.inspector;
 
 let completions = 0;
 
+process.on('warning', common.mustNotCall());
+
 const tests = [
   { // Creates few history to navigate for
     env: { NODE_REPL_HISTORY: defaultHistoryPath },
@@ -554,6 +556,13 @@ const tests = [
     expected: [],
     clean: false
   },
+  {
+    env: { NODE_REPL_HISTORY: defaultHistoryPath },
+    test: [ 'const util = {}', ENTER,
+            'ut', RIGHT, ENTER],
+    expected: [],
+    clean: false
+  },
 ];
 const numtests = tests.length;