Merge pull request #1192 from g4jc/parser_tuneup

Issues #816 / #802 - SpiderMonkey Tuneup

1 files changed, 27 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/arguments-object/mapped/mapped-arguments-nonconfigurable-strict-delete-3.js b/js/src/tests/test262/language/arguments-object/mapped/mapped-arguments-nonconfigurable-strict-delete-3.js
new file mode 100755
index 000000000..9aa2a2ed2
--- /dev/null
+++ b/js/src/tests/test262/language/arguments-object/mapped/mapped-arguments-nonconfigurable-strict-delete-3.js
@@ -0,0 +1,27 @@
+// 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: >
+    Mapping works when property is non-configurable, arguments property
+    was not deleted. [[Delete]] operations throws TypeError if called
+    from strict-mode code. Arguments property is changed with
+    [[DefineOwnProperty]].
+flags: [noStrict]
+---*/
+
+function argumentsAndStrictDeleteDefineOwnProperty(a) {
+  Object.defineProperty(arguments, "0", {configurable: false});
+
+  // Precondition: Delete is unsuccessful and doesn't affect mapping.
+  var args = arguments;
+  assert.throws(TypeError, function() { "use strict"; delete args[0]; });
+  assert.sameValue(a, 1);
+  assert.sameValue(arguments[0], 1);
+
+  Object.defineProperty(arguments, "0", {value: 2});
+  assert.sameValue(a, 2);
+  assert.sameValue(arguments[0], 2);
+}
+argumentsAndStrictDeleteDefineOwnProperty(1);