1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/defineProperty/property-description-must-be-an-object-not-number.js b/js/src/tests/test262/built-ins/Object/defineProperty/property-description-must-be-an-object-not-number.js
new file mode 100644
index 0000000000..f9339187d0
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/defineProperty/property-description-must-be-an-object-not-number.js
@@ -0,0 +1,28 @@
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-object.defineproperty
+description: >
+  Property description must be an object (number)
+info: |
+  ObjectDefineProperties ( O, Properties )
+
+  ...
+  For each element nextKey of keys, do
+    Let propDesc be ? props.[[GetOwnProperty]](nextKey).
+    If propDesc is not undefined and propDesc.[[Enumerable]] is true, then
+    Let descObj be ? Get(props, nextKey).
+    Let desc be ? ToPropertyDescriptor(descObj).
+  ...
+
+  ToPropertyDescriptor ( Obj )
+
+  If Type(Obj) is not Object, throw a TypeError exception.
+  ...
+---*/
+
+assert.throws(TypeError, () => {
+  Object.defineProperty({}, 'a', 1);
+});
+
+reportCompare(0, 0);