3 files changed, 13 insertions, 17 deletions
diff --git a/js/src/tests/test262/built-ins/Map/prototype/keys/length.js b/js/src/tests/test262/built-ins/Map/prototype/keys/length.js
index 6a5c19fd96..48ff475b45 100644
--- a/js/src/tests/test262/built-ins/Map/prototype/keys/length.js
+++ b/js/src/tests/test262/built-ins/Map/prototype/keys/length.js
@@ -12,13 +12,11 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(
-  Map.prototype.keys.length, 0,
-  'The value of `Map.prototype.keys.length` is `0`'
-);
-
-verifyNotEnumerable(Map.prototype.keys, 'length');
-verifyNotWritable(Map.prototype.keys, 'length');
-verifyConfigurable(Map.prototype.keys, 'length');
+verifyProperty(Map.prototype.keys, "length", {
+  value: 0,
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Map/prototype/keys/name.js b/js/src/tests/test262/built-ins/Map/prototype/keys/name.js
index ce3aa46661..98926ff056 100644
--- a/js/src/tests/test262/built-ins/Map/prototype/keys/name.js
+++ b/js/src/tests/test262/built-ins/Map/prototype/keys/name.js
@@ -12,13 +12,11 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(
-  Map.prototype.keys.name, 'keys',
-  'The value of `Map.prototype.keys.name` is `"keys"`'
-);
-
-verifyNotEnumerable(Map.prototype.keys, 'name');
-verifyNotWritable(Map.prototype.keys, 'name');
-verifyConfigurable(Map.prototype.keys, 'name');
+verifyProperty(Map.prototype.keys, "name", {
+  value: "keys",
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Map/prototype/keys/not-a-constructor.js b/js/src/tests/test262/built-ins/Map/prototype/keys/not-a-constructor.js
index be9835b84e..f1a6403627 100644
--- a/js/src/tests/test262/built-ins/Map/prototype/keys/not-a-constructor.js
+++ b/js/src/tests/test262/built-ins/Map/prototype/keys/not-a-constructor.js
@@ -25,7 +25,7 @@ assert.sameValue(isConstructor(Map.prototype.keys), false, 'isConstructor(Map.pr
 
 assert.throws(TypeError, () => {
   let m = new Map(); new m.keys();
-}, '`let m = new Map(); new m.keys()` throws TypeError');
+});
 
 
 reportCompare(0, 0);