JSTests/test262/test/built-ins/Function/prototype/S15.3.3.1_A1.js

// Copyright 2009 the Sputnik authors.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
info: The Function.prototype property has the attribute ReadOnly
es5id: 15.3.3.1_A1
description: Checking if varying the Function.prototype property fails
includes: [propertyHelper.js]
---*/

var obj = Function.prototype;

verifyNotWritable(Function, "prototype", null, function() {
  return "shifted";
});

//CHECK#1
if (Function.prototype !== obj) {
  $ERROR('#1: the Function.prototype property has the attributes ReadOnly.');
}

//CHECK#2
try {
  if (Function.prototype() !== undefined) {
    $ERROR('#2: the Function.prototype property has the attributes ReadOnly');
  }
} catch (e) {
  $ERROR('#2.1: the Function.prototype property has the attributes ReadOnly: ' + e);
}