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diff --git a/js/src/tests/test262/built-ins/Object/getOwnPropertyNames/proxy-invariant-not-extensible-extra-symbol-key.js b/js/src/tests/test262/built-ins/Object/getOwnPropertyNames/proxy-invariant-not-extensible-extra-symbol-key.js
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+// Copyright (C) 2019 Alexey Shvayka. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-object.getownpropertynames
+description: >
+ Proxy [[OwnPropertyKeys]] trap does not skip symbol keys when validating invariant:
+ * If the target object is not extensible, then the result List must contain all the keys of
+ the own properties of the target object and no other values.
+info: |
+ Object.getOwnPropertyNames ( O )
+
+ 1. Return ? GetOwnPropertyKeys(O, String).
+
+ GetOwnPropertyKeys ( O, type )
+
+ ...
+ 2. Let keys be ? obj.[[OwnPropertyKeys]]().
+
+ [[OwnPropertyKeys]] ( )
+
+ ...
+ 11. Let targetKeys be ? target.[[OwnPropertyKeys]]().
+ 16. For each element key of targetKeys, do
+ a. Let desc be ? target.[[GetOwnProperty]](key).
+ b. If desc is not undefined and desc.[[Configurable]] is false, then
+ ...
+ c. Else,
+ i. Append key as an element of targetConfigurableKeys.
+ ...
+ 18. Let uncheckedResultKeys be a new List which is a copy of trapResult.
+ ...
+ 22. If uncheckedResultKeys is not empty, throw a TypeError exception.
+features: [Proxy, Symbol]
+---*/
+
+var target = {};
+var symbol = Symbol();
+var proxy = new Proxy(target, {
+ ownKeys: function() {
+ return [symbol];
+ },
+});
+
+Object.preventExtensions(target);
+
+assert.throws(TypeError, function() {
+ Object.getOwnPropertyNames(proxy);
+});
+
+reportCompare(0, 0);