3 files changed, 13 insertions, 17 deletions
diff --git a/js/src/tests/test262/built-ins/Reflect/deleteProperty/length.js b/js/src/tests/test262/built-ins/Reflect/deleteProperty/length.js
index f340de07b5..c4f219e377 100644
--- a/js/src/tests/test262/built-ins/Reflect/deleteProperty/length.js
+++ b/js/src/tests/test262/built-ins/Reflect/deleteProperty/length.js
@@ -8,13 +8,11 @@ includes: [propertyHelper.js]
 features: [Reflect]
 ---*/
 
-assert.sameValue(
-  Reflect.deleteProperty.length, 2,
-  'The value of `Reflect.deleteProperty.length` is `2`'
-);
-
-verifyNotEnumerable(Reflect.deleteProperty, 'length');
-verifyNotWritable(Reflect.deleteProperty, 'length');
-verifyConfigurable(Reflect.deleteProperty, 'length');
+verifyProperty(Reflect.deleteProperty, "length", {
+  value: 2,
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Reflect/deleteProperty/name.js b/js/src/tests/test262/built-ins/Reflect/deleteProperty/name.js
index 8f6a2ead5b..a3f31b0b6a 100644
--- a/js/src/tests/test262/built-ins/Reflect/deleteProperty/name.js
+++ b/js/src/tests/test262/built-ins/Reflect/deleteProperty/name.js
@@ -13,13 +13,11 @@ includes: [propertyHelper.js]
 features: [Reflect]
 ---*/
 
-assert.sameValue(
-  Reflect.deleteProperty.name, 'deleteProperty',
-  'The value of `Reflect.deleteProperty.name` is `"deleteProperty"`'
-);
-
-verifyNotEnumerable(Reflect.deleteProperty, 'name');
-verifyNotWritable(Reflect.deleteProperty, 'name');
-verifyConfigurable(Reflect.deleteProperty, 'name');
+verifyProperty(Reflect.deleteProperty, "name", {
+  value: "deleteProperty",
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Reflect/deleteProperty/not-a-constructor.js b/js/src/tests/test262/built-ins/Reflect/deleteProperty/not-a-constructor.js
index afbc5ae119..53fd473101 100644
--- a/js/src/tests/test262/built-ins/Reflect/deleteProperty/not-a-constructor.js
+++ b/js/src/tests/test262/built-ins/Reflect/deleteProperty/not-a-constructor.js
@@ -29,7 +29,7 @@ assert.sameValue(
 
 assert.throws(TypeError, () => {
   new Reflect.deleteProperty({}, '');
-}, '`new Reflect.deleteProperty({}, \'\')` throws TypeError');
+});
 
 
 reportCompare(0, 0);