1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/ownKeys/extensible-return-trap-result-absent-not-configurable-keys.js b/js/src/tests/test262/built-ins/Proxy/ownKeys/extensible-return-trap-result-absent-not-configurable-keys.js
new file mode 100644
index 0000000000..8037edd33e
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/ownKeys/extensible-return-trap-result-absent-not-configurable-keys.js
@@ -0,0 +1,32 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-proxy-object-internal-methods-and-internal-slots-ownpropertykeys
+description: >
+    If target is extensible, return the non-falsy trap result if target doesn't
+    contain any non-configurable keys.
+info: |
+    [[OwnPropertyKeys]] ( )
+
+    ...
+    15. If extensibleTarget is true and targetNonconfigurableKeys is empty, then
+        a. Return trapResult.
+features: [Proxy]
+---*/
+
+var p = new Proxy({
+  attr: 42
+}, {
+  ownKeys: function() {
+    return ["foo", "bar"];
+  }
+});
+
+var keys = Object.getOwnPropertyNames(p);
+
+assert.sameValue(keys[0], "foo");
+assert.sameValue(keys[1], "bar");
+
+assert.sameValue(keys.length, 2);
+
+reportCompare(0, 0);