3 files changed, 13 insertions, 17 deletions
diff --git a/js/src/tests/test262/built-ins/Reflect/setPrototypeOf/length.js b/js/src/tests/test262/built-ins/Reflect/setPrototypeOf/length.js
index 51e4fff9c4..4b7b768317 100644
--- a/js/src/tests/test262/built-ins/Reflect/setPrototypeOf/length.js
+++ b/js/src/tests/test262/built-ins/Reflect/setPrototypeOf/length.js
@@ -8,13 +8,11 @@ includes: [propertyHelper.js]
 features: [Reflect, Reflect.setPrototypeOf]
 ---*/
 
-assert.sameValue(
-  Reflect.setPrototypeOf.length, 2,
-  'The value of `Reflect.setPrototypeOf.length` is `2`'
-);
-
-verifyNotEnumerable(Reflect.setPrototypeOf, 'length');
-verifyNotWritable(Reflect.setPrototypeOf, 'length');
-verifyConfigurable(Reflect.setPrototypeOf, 'length');
+verifyProperty(Reflect.setPrototypeOf, "length", {
+  value: 2,
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Reflect/setPrototypeOf/name.js b/js/src/tests/test262/built-ins/Reflect/setPrototypeOf/name.js
index bbbca0a855..3c89e4b12f 100644
--- a/js/src/tests/test262/built-ins/Reflect/setPrototypeOf/name.js
+++ b/js/src/tests/test262/built-ins/Reflect/setPrototypeOf/name.js
@@ -12,13 +12,11 @@ includes: [propertyHelper.js]
 features: [Reflect, Reflect.setPrototypeOf]
 ---*/
 
-assert.sameValue(
-  Reflect.setPrototypeOf.name, 'setPrototypeOf',
-  'The value of `Reflect.setPrototypeOf.name` is `"setPrototypeOf"`'
-);
-
-verifyNotEnumerable(Reflect.setPrototypeOf, 'name');
-verifyNotWritable(Reflect.setPrototypeOf, 'name');
-verifyConfigurable(Reflect.setPrototypeOf, 'name');
+verifyProperty(Reflect.setPrototypeOf, "name", {
+  value: "setPrototypeOf",
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Reflect/setPrototypeOf/not-a-constructor.js b/js/src/tests/test262/built-ins/Reflect/setPrototypeOf/not-a-constructor.js
index e7e1f90120..ff732d9e5b 100644
--- a/js/src/tests/test262/built-ins/Reflect/setPrototypeOf/not-a-constructor.js
+++ b/js/src/tests/test262/built-ins/Reflect/setPrototypeOf/not-a-constructor.js
@@ -29,7 +29,7 @@ assert.sameValue(
 
 assert.throws(TypeError, () => {
   new Reflect.setPrototypeOf({}, {});
-}, '`new Reflect.setPrototypeOf({}, {})` throws TypeError');
+});
 
 
 reportCompare(0, 0);