1 files changed, 19 insertions, 1 deletions
diff --git a/test/parallel/test-util-internal.js b/test/parallel/test-util-internal.js
index ac7ff3da62..06fddb7e94 100644
--- a/test/parallel/test-util-internal.js
+++ b/test/parallel/test-util-internal.js
@@ -12,6 +12,12 @@ function getHiddenValue(obj, name) {
   };
 }
 
+function setHiddenValue(obj, name, val) {
+  return function() {
+    internalUtil.setHiddenValue(obj, name, val);
+  };
+}
+
 assert.throws(getHiddenValue(), /obj must be an object/);
 assert.throws(getHiddenValue(null, 'foo'), /obj must be an object/);
 assert.throws(getHiddenValue(undefined, 'foo'), /obj must be an object/);
@@ -22,12 +28,24 @@ assert.throws(getHiddenValue({}, null), /name must be a string/);
 assert.throws(getHiddenValue({}, []), /name must be a string/);
 assert.deepEqual(internalUtil.getHiddenValue({}, 'foo'), undefined);
 
+assert.throws(setHiddenValue(), /obj must be an object/);
+assert.throws(setHiddenValue(null, 'foo'), /obj must be an object/);
+assert.throws(setHiddenValue(undefined, 'foo'), /obj must be an object/);
+assert.throws(setHiddenValue('bar', 'foo'), /obj must be an object/);
+assert.throws(setHiddenValue(85, 'foo'), /obj must be an object/);
+assert.throws(setHiddenValue({}), /name must be a string/);
+assert.throws(setHiddenValue({}, null), /name must be a string/);
+assert.throws(setHiddenValue({}, []), /name must be a string/);
+const obj = {};
+assert.strictEqual(internalUtil.setHiddenValue(obj, 'foo', 'bar'), true);
+assert.strictEqual(internalUtil.getHiddenValue(obj, 'foo'), 'bar');
+
 let arrowMessage;
 
 try {
   require('../fixtures/syntax/bad_syntax');
 } catch (err) {
-  arrowMessage = internalUtil.getHiddenValue(err, 'arrowMessage');
+  arrowMessage = internalUtil.getHiddenValue(err, 'node:arrowMessage');
 }
 
 assert(/bad_syntax\.js:1/.test(arrowMessage));