diff --git a/src/ray/gcs/test/asio_test.cc b/src/ray/gcs/test/asio_test.cc
index 052a95ec6..976562a59 100644
--- a/src/ray/gcs/test/asio_test.cc
+++ b/src/ray/gcs/test/asio_test.cc
@@ -69,6 +69,13 @@ TEST_F(RedisAsioTest, TestRedisCommands) {
 
   std::shared_ptr<RedisContext> shard_context =
       std::make_shared<RedisContext>(io_service);
+  ASSERT_TRUE(
+      shard_context->PingPort(std::string("127.0.0.1"), TEST_REDIS_SERVER_PORTS.front())
+          .ok());
+  ASSERT_FALSE(
+      shard_context
+          ->PingPort(std::string("127.0.0.1"), TEST_REDIS_SERVER_PORTS.front() + 987)
+          .ok());
   ASSERT_TRUE(shard_context
                   ->Connect(std::string("127.0.0.1"), TEST_REDIS_SERVER_PORTS.front(),
                             /*sharding=*/true,