nodejs
diff --git a/‎lib/internal/test_runner/test.js‎
Lines changed: 2 additions & 0 deletions b/‎lib/internal/test_runner/test.js‎
Lines changed: 2 additions & 0 deletions
diff --git a/‎test/parallel/test-runner-test-fullname.js‎
Lines changed: 5 additions & 1 deletion b/‎test/parallel/test-runner-test-fullname.js‎
Lines changed: 5 additions & 1 deletion
@@ -1459,6 +1459,8 @@ class Suite extends Test {
 }
 
 function getFullName(test) {
+  if (test === test.root) return test.name;
+
   let fullName = test.name;
 
   for (let t = test.parent; t !== t.root; t = t.parent) {
 
@@ -1,7 +1,11 @@
 'use strict';
 require('../common');
 const { strictEqual } = require('node:assert');
-const { suite, test } = require('node:test');
+const { before, suite, test } = require('node:test');
+
+before((t) => {
+  strictEqual(t.fullName, '<root>');
+});
 
 suite('suite', (t) => {
   strictEqual(t.fullName, 'suite');
Original file line number	Diff line number	Diff line change
@@ -1459,6 +1459,8 @@ class Suite extends Test {
1459	1459	}
1460	1460
1461	1461	function getFullName(test) {
	1462	+ if (test === test.root) return test.name;
	1463	+
1462	1464	let fullName = test.name;
1463	1465
1464	1466	for (let t = test.parent; t !== t.root; t = t.parent) {