js/src/tests/test262/language/arguments-object/mapped/mapped-arguments-nonconfigurable-strict-delete-1.js


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// 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.
flags: [noStrict]
---*/

function argumentsAndStrictDelete(a) {
  Object.defineProperty(arguments, "0", {configurable: false});

  var args = arguments;
  assert.throws(TypeError, function() { "use strict"; delete args[0]; });
  assert.sameValue(a, 1);
  assert.sameValue(arguments[0], 1);
}
argumentsAndStrictDelete(1);