1 files changed, 34 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/preventExtensions/symbol-object-contains-symbol-properties-strict-strict.js b/js/src/tests/test262/built-ins/Object/preventExtensions/symbol-object-contains-symbol-properties-strict-strict.js
new file mode 100644
index 0000000000..31aebc0bc6
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/preventExtensions/symbol-object-contains-symbol-properties-strict-strict.js
@@ -0,0 +1,34 @@
+'use strict';
+// Copyright (C) 2013 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 19.4
+description: >
+    Object.preventExtensions(obj) where obj contains symbol properties.
+flags: [onlyStrict]
+features: [Symbol]
+---*/
+var symA = Symbol("A");
+var symB = Symbol("B");
+var symC = Symbol("C");
+var obj = {};
+obj[symA] = 1;
+Object.preventExtensions(obj);
+obj[symA] = 2;
+
+assert.throws(TypeError, function() {
+  obj[symB] = 1;
+});
+
+assert.throws(TypeError, function() {
+  Object.defineProperty(obj, symC, {
+    value: 1
+  });
+});
+
+assert.sameValue(obj[symA], 2, "The value of `obj[symA]` is `2`");
+assert.sameValue(delete obj[symA], true, "`delete obj[symA]` is `true`");
+assert.sameValue(obj[symB], undefined, "The value of `obj[symB]` is `undefined`");
+assert.sameValue(obj[symC], undefined, "The value of `obj[symC]` is `undefined`");
+
+reportCompare(0, 0);