1 files changed, 28 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/assign/source-own-prop-keys-error.js b/js/src/tests/test262/built-ins/Object/assign/source-own-prop-keys-error.js
new file mode 100644
index 0000000000..5cad1fbda1
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/assign/source-own-prop-keys-error.js
@@ -0,0 +1,28 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 19.1.2.1
+description: Invoked with a source whose own property keys cannot be retrieved
+info: |
+    [...]
+    5. For each element nextSource of sources, in ascending index order,
+       a. If nextSource is undefined or null, let keys be an empty List.
+       b. Else,
+          i. Let from be ToObject(nextSource).
+          ii. ReturnIfAbrupt(from).
+          iii. Let keys be from.[[OwnPropertyKeys]]().
+          iv. ReturnIfAbrupt(keys).
+features: [Proxy]
+---*/
+
+var source = new Proxy({}, {
+  ownKeys: function() {
+    throw new Test262Error();
+  }
+});
+
+assert.throws(Test262Error, function() {
+  Object.assign({}, source);
+});
+
+reportCompare(0, 0);