3 files changed, 13 insertions, 11 deletions
diff --git a/js/src/tests/test262/built-ins/Math/atan/length.js b/js/src/tests/test262/built-ins/Math/atan/length.js
index e2a3cfc5ad..e3e97785f3 100644
--- a/js/src/tests/test262/built-ins/Math/atan/length.js
+++ b/js/src/tests/test262/built-ins/Math/atan/length.js
@@ -22,10 +22,11 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(Math.atan.length, 1);
-
-verifyNotEnumerable(Math.atan, "length");
-verifyNotWritable(Math.atan, "length");
-verifyConfigurable(Math.atan, "length");
+verifyProperty(Math.atan, "length", {
+  value: 1,
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Math/atan/name.js b/js/src/tests/test262/built-ins/Math/atan/name.js
index 56009ad6fe..a389cc1be3 100644
--- a/js/src/tests/test262/built-ins/Math/atan/name.js
+++ b/js/src/tests/test262/built-ins/Math/atan/name.js
@@ -19,10 +19,11 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(Math.atan.name, "atan");
-
-verifyNotEnumerable(Math.atan, "name");
-verifyNotWritable(Math.atan, "name");
-verifyConfigurable(Math.atan, "name");
+verifyProperty(Math.atan, "name", {
+  value: "atan",
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Math/atan/not-a-constructor.js b/js/src/tests/test262/built-ins/Math/atan/not-a-constructor.js
index 0b00568ba9..13ca4783c9 100644
--- a/js/src/tests/test262/built-ins/Math/atan/not-a-constructor.js
+++ b/js/src/tests/test262/built-ins/Math/atan/not-a-constructor.js
@@ -25,7 +25,7 @@ assert.sameValue(isConstructor(Math.atan), false, 'isConstructor(Math.atan) must
 
 assert.throws(TypeError, () => {
   new Math.atan();
-}, '`new Math.atan()` throws TypeError');
+});
 
 
 reportCompare(0, 0);