diff --git a/test/es6/ES6Promise.js b/test/es6/ES6Promise.js
index 4c208f36b84..180c7e89575 100644
--- a/test/es6/ES6Promise.js
+++ b/test/es6/ES6Promise.js
@@ -74,6 +74,7 @@ var tests = [
             assert.isTrue(descriptor.configurable, "Promise.prototype.catch.configurable === true");
             assert.areEqual('function', typeof descriptor.value, "typeof Promise.prototype.catch === 'function'");
             assert.areEqual(1, Promise.prototype.catch.length, "Promise.prototype.catch.length === 1");
+            assert.areEqual("catch", Promise.prototype.catch.name, "Promise.prototype.catch.name === 'catch'");
 
             var descriptor = Object.getOwnPropertyDescriptor(Promise.prototype, 'then');
             assert.isTrue(descriptor.writable, "Promise.prototype.then.writable === true");
@@ -81,6 +82,7 @@ var tests = [
             assert.isTrue(descriptor.configurable, "Promise.prototype.then.configurable === true");
             assert.areEqual('function', typeof descriptor.value, "typeof Promise.prototype.then === 'function'");
             assert.areEqual(2, Promise.prototype.then.length, "Promise.prototype.then.length === 2");
+            assert.areEqual("then", Promise.prototype.then.name, "Promise.prototype.then.name === 'then'");
 
             var descriptor = Object.getOwnPropertyDescriptor(Promise.prototype, 'finally');
             assert.isTrue(descriptor.writable, "Promise.prototype.finally.writable === true");
@@ -88,6 +90,7 @@ var tests = [
             assert.isTrue(descriptor.configurable, "Promise.prototype.finally.configurable === true");
             assert.areEqual('function', typeof descriptor.value, "typeof Promise.prototype.finally === 'function'");
             assert.areEqual(1, Promise.prototype.finally.length, "Promise.prototype.finally.length === 1");
+            assert.areEqual("finally", Promise.prototype.finally.name, "Promise.prototype.finally.name === 'finally'");
 
             var descriptor = Object.getOwnPropertyDescriptor(Promise.prototype, Symbol.toStringTag);
             assert.isFalse(descriptor.writable, "Promise.prototype[@@toStringTag].writable === false");
@@ -411,6 +414,26 @@ var tests = [
             assert.isTrue(calledThen, "Promise.prototype.finally uses the modified then function");
         }
     },
+    {
+        name: "Promise.prototype.finally creates anonymous ThenFinally function",
+        body: function (index) {
+            class TestPromise extends Promise {
+                then (a, b)
+                {
+                    this.first = a;
+                    this.second = b;
+                    this.argCount = arguments.length;
+                }
+            }
+            var p = new TestPromise(function() {});
+            p.finally(function() {});
+            assert.areEqual(p.first.name, "", "Promise.prototype.finally creates anonymous resolve handler");
+            assert.areEqual(p.first.length, 1, "Promise.prototype.finally creates resolve handler with length 1");
+            assert.areEqual(p.second.name, "", "Promise.prototype.finally creates anonymous reject handler");
+            assert.areEqual(p.second.length, 1, "Promise.prototype.finally creates reject handler with length 1");
+            assert.areEqual(p.argCount, 2, "Promise.prototype.finally invokes then with exactly 2 arguments");
+        }
+    },
     {
         name: "Subclass of Promise should return instances of the subclass from Promise methods",
         body: function () {