3 files changed, 13 insertions, 11 deletions
diff --git a/js/src/tests/test262/built-ins/GeneratorPrototype/return/length.js b/js/src/tests/test262/built-ins/GeneratorPrototype/return/length.js
index a3f8f38369..6fa35a482a 100644
--- a/js/src/tests/test262/built-ins/GeneratorPrototype/return/length.js
+++ b/js/src/tests/test262/built-ins/GeneratorPrototype/return/length.js
@@ -26,10 +26,11 @@ features: [generators]
 function* g() {}
 var GeneratorPrototype = Object.getPrototypeOf(g).prototype;
 
-assert.sameValue(GeneratorPrototype.return.length, 1);
-
-verifyNotEnumerable(GeneratorPrototype.return, "length");
-verifyNotWritable(GeneratorPrototype.return, "length");
-verifyConfigurable(GeneratorPrototype.return, "length");
+verifyProperty(GeneratorPrototype.return, "length", {
+  value: 1,
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/GeneratorPrototype/return/name.js b/js/src/tests/test262/built-ins/GeneratorPrototype/return/name.js
index e1b4512522..dfb90b17ba 100644
--- a/js/src/tests/test262/built-ins/GeneratorPrototype/return/name.js
+++ b/js/src/tests/test262/built-ins/GeneratorPrototype/return/name.js
@@ -23,10 +23,11 @@ features: [generators]
 function* g() {}
 var GeneratorPrototype = Object.getPrototypeOf(g).prototype;
 
-assert.sameValue(GeneratorPrototype.return.name, "return");
-
-verifyNotEnumerable(GeneratorPrototype.return, "name");
-verifyNotWritable(GeneratorPrototype.return, "name");
-verifyConfigurable(GeneratorPrototype.return, "name");
+verifyProperty(GeneratorPrototype.return, "name", {
+  value: "return",
+  writable: false,
+  enumerable: false,
+  configurable: true
+});
 
 reportCompare(0, 0);
diff --git a/js/src/tests/test262/built-ins/GeneratorPrototype/return/not-a-constructor.js b/js/src/tests/test262/built-ins/GeneratorPrototype/return/not-a-constructor.js
index 4c0f2b56b8..424ee0bc22 100644
--- a/js/src/tests/test262/built-ins/GeneratorPrototype/return/not-a-constructor.js
+++ b/js/src/tests/test262/built-ins/GeneratorPrototype/return/not-a-constructor.js
@@ -29,7 +29,7 @@ assert.sameValue(
 
 assert.throws(TypeError, () => {
   function* g() {} let iterator = g(); new iterator.return();
-}, '`function* g() {} let iterator = g(); new iterator.return()` throws TypeError');
+});
 
 
 reportCompare(0, 0);