4 files changed, 18 insertions, 16 deletions
diff --git a/js/src/tests/test262/built-ins/Object/is/length.js b/js/src/tests/test262/built-ins/Object/is/length.js
index 98483984b9..9218a31356 100644
--- a/js/src/tests/test262/built-ins/Object/is/length.js
+++ b/js/src/tests/test262/built-ins/Object/is/length.js
@@ -10,10 +10,11 @@ description: >
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(Object.is.length, 2, "The value of `Object.is.length` is `2`");
-
-verifyNotEnumerable(Object.is, "length");
-verifyNotWritable(Object.is, "length");
-verifyConfigurable(Object.is, "length");
+verifyProperty(Object.is, "length", {
+  value: 2,
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Object/is/name.js b/js/src/tests/test262/built-ins/Object/is/name.js
index f495ccbc12..d614d88d0a 100644
--- a/js/src/tests/test262/built-ins/Object/is/name.js
+++ b/js/src/tests/test262/built-ins/Object/is/name.js
@@ -10,10 +10,11 @@ description: >
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(Object.is.name, 'is', "The value of `Object.is.name` is `'is'`");
-
-verifyNotEnumerable(Object.is, "name");
-verifyNotWritable(Object.is, "name");
-verifyConfigurable(Object.is, "name");
+verifyProperty(Object.is, "name", {
+  value: "is",
+  writable: false,
+  enumerable: false,
+  configurable: true,
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Object/is/not-a-constructor.js b/js/src/tests/test262/built-ins/Object/is/not-a-constructor.js
index 96c90fcc5d..b56849e5f1 100644
--- a/js/src/tests/test262/built-ins/Object/is/not-a-constructor.js
+++ b/js/src/tests/test262/built-ins/Object/is/not-a-constructor.js
@@ -25,7 +25,7 @@ assert.sameValue(isConstructor(Object.is), false, 'isConstructor(Object.is) must
 
 assert.throws(TypeError, () => {
   new Object.is(0, 0);
-}, '`new Object.is(0, 0)` throws TypeError');
+});
 
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Object/is/object-is.js b/js/src/tests/test262/built-ins/Object/is/object-is.js
index 22dcd083aa..0865fb21ad 100644
--- a/js/src/tests/test262/built-ins/Object/is/object-is.js
+++ b/js/src/tests/test262/built-ins/Object/is/object-is.js
@@ -10,12 +10,12 @@ description: >
 includes: [propertyHelper.js]
 ---*/
 
-
 assert.sameValue(typeof Object.is, "function");
-assert.sameValue(Object.is.name, "is");
 
-verifyWritable(Object, "is");
-verifyNotEnumerable(Object, "is");
-verifyConfigurable(Object, "is");
+verifyProperty(Object, "is", {
+  writable: true,
+  enumerable: false,
+  configurable: true,
+});
 
 reportCompare(0, 0);