3 files changed, 13 insertions, 11 deletions
diff --git a/js/src/tests/test262/built-ins/Math/tanh/length.js b/js/src/tests/test262/built-ins/Math/tanh/length.js
index 7af2c89df5..da3e9f2cd4 100644
--- a/js/src/tests/test262/built-ins/Math/tanh/length.js
+++ b/js/src/tests/test262/built-ins/Math/tanh/length.js
@@ -18,10 +18,11 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(Math.tanh.length, 1);
-
-verifyNotEnumerable(Math.tanh, "length");
-verifyNotWritable(Math.tanh, "length");
-verifyConfigurable(Math.tanh, "length");
+verifyProperty(Math.tanh, "length", {
+  value: 1,
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Math/tanh/name.js b/js/src/tests/test262/built-ins/Math/tanh/name.js
index af77bcfae0..9108cd0980 100644
--- a/js/src/tests/test262/built-ins/Math/tanh/name.js
+++ b/js/src/tests/test262/built-ins/Math/tanh/name.js
@@ -19,10 +19,11 @@ info: |
 includes: [propertyHelper.js]
 ---*/
 
-assert.sameValue(Math.tanh.name, "tanh");
-
-verifyNotEnumerable(Math.tanh, "name");
-verifyNotWritable(Math.tanh, "name");
-verifyConfigurable(Math.tanh, "name");
+verifyProperty(Math.tanh, "name", {
+  value: "tanh",
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/Math/tanh/not-a-constructor.js b/js/src/tests/test262/built-ins/Math/tanh/not-a-constructor.js
index 7f4914d650..80b8d74407 100644
--- a/js/src/tests/test262/built-ins/Math/tanh/not-a-constructor.js
+++ b/js/src/tests/test262/built-ins/Math/tanh/not-a-constructor.js
@@ -25,7 +25,7 @@ assert.sameValue(isConstructor(Math.tanh), false, 'isConstructor(Math.tanh) must
 
 assert.throws(TypeError, () => {
   new Math.tanh();
-}, '`new Math.tanh()` throws TypeError');
+});
 
 
 reportCompare(0, 0);