3 files changed, 13 insertions, 17 deletions
diff --git a/js/src/tests/test262/built-ins/WeakMap/prototype/set/length.js b/js/src/tests/test262/built-ins/WeakMap/prototype/set/length.js
index 052f181e53..1e5665313e 100644
--- a/js/src/tests/test262/built-ins/WeakMap/prototype/set/length.js
+++ b/js/src/tests/test262/built-ins/WeakMap/prototype/set/length.js
@@ -11,13 +11,11 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(
-  WeakMap.prototype.set.length, 2,
-  'The value of `WeakMap.prototype.set.length` is `2`'
-);
-
-verifyNotEnumerable(WeakMap.prototype.set, 'length');
-verifyNotWritable(WeakMap.prototype.set, 'length');
-verifyConfigurable(WeakMap.prototype.set, 'length');
+verifyProperty(WeakMap.prototype.set, "length", {
+  value: 2,
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/WeakMap/prototype/set/name.js b/js/src/tests/test262/built-ins/WeakMap/prototype/set/name.js
index f1d62ffef5..b30a386faa 100644
--- a/js/src/tests/test262/built-ins/WeakMap/prototype/set/name.js
+++ b/js/src/tests/test262/built-ins/WeakMap/prototype/set/name.js
@@ -11,13 +11,11 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(
-  WeakMap.prototype.set.name, 'set',
-  'The value of WeakMap.prototype.set.name is "set"'
-);
-
-verifyNotEnumerable(WeakMap.prototype.set, 'name');
-verifyNotWritable(WeakMap.prototype.set, 'name');
-verifyConfigurable(WeakMap.prototype.set, 'name');
+verifyProperty(WeakMap.prototype.set, "name", {
+  value: "set",
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/WeakMap/prototype/set/not-a-constructor.js b/js/src/tests/test262/built-ins/WeakMap/prototype/set/not-a-constructor.js
index c8d6272217..b3e89c04d1 100644
--- a/js/src/tests/test262/built-ins/WeakMap/prototype/set/not-a-constructor.js
+++ b/js/src/tests/test262/built-ins/WeakMap/prototype/set/not-a-constructor.js
@@ -29,7 +29,7 @@ assert.sameValue(
 
 assert.throws(TypeError, () => {
   let wm = new WeakMap(); new wm.set({}, 1);
-}, '`let wm = new WeakMap(); new wm.set({}, 1)` throws TypeError');
+});
 
 
 reportCompare(0, 0);