3 files changed, 13 insertions, 17 deletions
diff --git a/js/src/tests/test262/built-ins/Reflect/isExtensible/length.js b/js/src/tests/test262/built-ins/Reflect/isExtensible/length.js
index 31dd4d802a..61f564113e 100644
--- a/js/src/tests/test262/built-ins/Reflect/isExtensible/length.js
+++ b/js/src/tests/test262/built-ins/Reflect/isExtensible/length.js
@@ -8,13 +8,11 @@ includes: [propertyHelper.js]
 features: [Reflect]
 ---*/
 
-assert.sameValue(
-  Reflect.isExtensible.length, 1,
-  'The value of `Reflect.isExtensible.length` is `1`'
-);
-
-verifyNotEnumerable(Reflect.isExtensible, 'length');
-verifyNotWritable(Reflect.isExtensible, 'length');
-verifyConfigurable(Reflect.isExtensible, 'length');
+verifyProperty(Reflect.isExtensible, "length", {
+  value: 1,
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Reflect/isExtensible/name.js b/js/src/tests/test262/built-ins/Reflect/isExtensible/name.js
index 04ba531667..ef8820258b 100644
--- a/js/src/tests/test262/built-ins/Reflect/isExtensible/name.js
+++ b/js/src/tests/test262/built-ins/Reflect/isExtensible/name.js
@@ -13,13 +13,11 @@ includes: [propertyHelper.js]
 features: [Reflect]
 ---*/
 
-assert.sameValue(
-  Reflect.isExtensible.name, 'isExtensible',
-  'The value of `Reflect.isExtensible.name` is `"isExtensible"`'
-);
-
-verifyNotEnumerable(Reflect.isExtensible, 'name');
-verifyNotWritable(Reflect.isExtensible, 'name');
-verifyConfigurable(Reflect.isExtensible, 'name');
+verifyProperty(Reflect.isExtensible, "name", {
+  value: "isExtensible",
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Reflect/isExtensible/not-a-constructor.js b/js/src/tests/test262/built-ins/Reflect/isExtensible/not-a-constructor.js
index e45a445b84..a8205bf113 100644
--- a/js/src/tests/test262/built-ins/Reflect/isExtensible/not-a-constructor.js
+++ b/js/src/tests/test262/built-ins/Reflect/isExtensible/not-a-constructor.js
@@ -25,7 +25,7 @@ assert.sameValue(isConstructor(Reflect.isExtensible), false, 'isConstructor(Refl
 
 assert.throws(TypeError, () => {
   new Reflect.isExtensible({});
-}, '`new Reflect.isExtensible({})` throws TypeError');
+});
 
 
 reportCompare(0, 0);