Test for registered setting.

server/src/internalClusterTest/java/org/elasticsearch/transport/TransportServiceIT.java

@@ -0,0 +1,23 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0 and the Server Side Public License, v 1; you may not use this file except
+ * in compliance with, at your election, the Elastic License 2.0 or the Server
+ * Side Public License, v 1.
+ */
+
+package org.elasticsearch.transport;
+
+import org.elasticsearch.common.settings.Settings;
+import org.elasticsearch.test.ESSingleNodeTestCase;
+
+public class TransportServiceIT extends ESSingleNodeTestCase {
+    @Override
+    protected Settings nodeSettings() {
+        return Settings.builder().put(super.nodeSettings()).put(TransportService.ENABLE_STACK_OVERFLOW_AVOIDANCE.getKey(), randomBoolean()).build();
+    }
+
+    public void testNodeStartsWithSetting() {
+        // just check that the node starts with the setting set, i.e., that the setting is registered.
+    }
+}