Merge pull request #1192 from g4jc/parser_tuneup

Issues #816 / #802 - SpiderMonkey Tuneup

1 files changed, 26 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/arguments-object/mapped/mapped-arguments-nonwritable-nonconfigurable-4.js b/js/src/tests/test262/language/arguments-object/mapped/mapped-arguments-nonwritable-nonconfigurable-4.js
new file mode 100755
index 000000000..ea40a49a8
--- /dev/null
+++ b/js/src/tests/test262/language/arguments-object/mapped/mapped-arguments-nonwritable-nonconfigurable-4.js
@@ -0,0 +1,26 @@
+// Copyright (C) 2015 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: Mapped arguments object with non-configurable property
+description: >
+    Mapped arguments property is changed to non-writable and
+    non-configurable. Perform property attribute changes with two
+    [[DefineOwnProperty]] calls. Add intervening call to
+    [[DefineOwnProperty]].
+flags: [noStrict]
+---*/
+
+function argumentsNonWritableThenNonConfigurableWithInterveningDefineOwnProperty(a) {
+  Object.defineProperty(arguments, "0", {writable: false});
+  Object.defineProperty(arguments, "0", {value: 2});
+  Object.defineProperty(arguments, "0", {configurable: false});
+  assert.sameValue(a, 1);
+  assert.sameValue(arguments[0], 2);
+
+  // Postcondition: Arguments mapping is removed.
+  a = 3;
+  assert.sameValue(a, 3);
+  assert.sameValue(arguments[0], 2);
+}
+argumentsNonWritableThenNonConfigurableWithInterveningDefineOwnProperty(1);