3 files changed, 13 insertions, 17 deletions
diff --git a/js/src/tests/test262/built-ins/Map/prototype/delete/length.js b/js/src/tests/test262/built-ins/Map/prototype/delete/length.js
index 2be05ee2b1..27c629003a 100644
--- a/js/src/tests/test262/built-ins/Map/prototype/delete/length.js
+++ b/js/src/tests/test262/built-ins/Map/prototype/delete/length.js
@@ -12,13 +12,11 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(
-  Map.prototype.delete.length, 1,
-  'The value of `Map.prototype.delete.length` is `1`'
-);
-
-verifyNotEnumerable(Map.prototype.delete, 'length');
-verifyNotWritable(Map.prototype.delete, 'length');
-verifyConfigurable(Map.prototype.delete, 'length');
+verifyProperty(Map.prototype.delete, "length", {
+  value: 1,
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Map/prototype/delete/name.js b/js/src/tests/test262/built-ins/Map/prototype/delete/name.js
index dcacf4f3ee..95ca61a4ef 100644
--- a/js/src/tests/test262/built-ins/Map/prototype/delete/name.js
+++ b/js/src/tests/test262/built-ins/Map/prototype/delete/name.js
@@ -12,13 +12,11 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(
-  Map.prototype.delete.name, 'delete',
-  'The value of `Map.prototype.delete.name` is `"delete"`'
-);
-
-verifyNotEnumerable(Map.prototype.delete, 'name');
-verifyNotWritable(Map.prototype.delete, 'name');
-verifyConfigurable(Map.prototype.delete, 'name');
+verifyProperty(Map.prototype.delete, "name", {
+  value: "delete",
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Map/prototype/delete/not-a-constructor.js b/js/src/tests/test262/built-ins/Map/prototype/delete/not-a-constructor.js
index fb43d0a430..3cc5490f94 100644
--- a/js/src/tests/test262/built-ins/Map/prototype/delete/not-a-constructor.js
+++ b/js/src/tests/test262/built-ins/Map/prototype/delete/not-a-constructor.js
@@ -25,7 +25,7 @@ assert.sameValue(isConstructor(Map.prototype.delete), false, 'isConstructor(Map.
 
 assert.throws(TypeError, () => {
   let m = new Map(); new m.delete();
-}, '`let m = new Map(); new m.delete()` throws TypeError');
+});
 
 
 reportCompare(0, 0);