test/script/basic/sealfreeze.js

Tue, 21 Mar 2017 13:41:57 -0700

author
asaha
date
Tue, 21 Mar 2017 13:41:57 -0700
changeset 2160
1df40fe54cd6
parent 962
ac62e33a99b0
child 1205
4112748288bb
permissions
-rw-r--r--

Merge

jlaskey@3 1 /*
jlaskey@7 2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
jlaskey@3 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
attila@962 4 *
jlaskey@3 5 * This code is free software; you can redistribute it and/or modify it
jlaskey@3 6 * under the terms of the GNU General Public License version 2 only, as
jlaskey@3 7 * published by the Free Software Foundation.
attila@962 8 *
jlaskey@3 9 * This code is distributed in the hope that it will be useful, but WITHOUT
jlaskey@3 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jlaskey@3 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
jlaskey@3 12 * version 2 for more details (a copy is included in the LICENSE file that
jlaskey@3 13 * accompanied this code).
attila@962 14 *
jlaskey@3 15 * You should have received a copy of the GNU General Public License version
jlaskey@3 16 * 2 along with this work; if not, write to the Free Software Foundation,
jlaskey@3 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
attila@962 18 *
jlaskey@3 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
jlaskey@3 20 * or visit www.oracle.com if you need additional information or have any
jlaskey@3 21 * questions.
jlaskey@3 22 */
jlaskey@3 23
jlaskey@3 24 /**
jlaskey@3 25 * Basic checks for Object.seal and Object.freeze.
jlaskey@3 26 *
jlaskey@3 27 * @test
jlaskey@3 28 * @run
jlaskey@3 29 */
jlaskey@3 30
jlaskey@3 31 var obj = { num: Math.E };
jlaskey@3 32
jlaskey@3 33 print("sealed? " + Object.isSealed(obj));
jlaskey@3 34 print("frozen? " + Object.isFrozen(obj));
jlaskey@3 35
jlaskey@3 36 Object.seal(obj);
jlaskey@3 37 print("sealed? " + Object.isSealed(obj));
jlaskey@3 38
jlaskey@3 39 // delete should fail - because we have sealed
jlaskey@3 40 print("deleted num? " + (delete obj.num));
jlaskey@3 41 print("num = " + obj.num);
jlaskey@3 42
jlaskey@3 43 // assignment should succeed
jlaskey@3 44 print("assign PI to num");
jlaskey@3 45 obj.num = Math.PI;
jlaskey@3 46 print("num = " + obj.num);
jlaskey@3 47
jlaskey@3 48 // assignment should fail -- because we freeze
jlaskey@3 49 Object.freeze(obj);
jlaskey@3 50 print("frozen? " + Object.isFrozen(obj));
jlaskey@3 51
jlaskey@3 52 print("assign 1729 to num");
jlaskey@3 53 obj.num = 1729;
jlaskey@3 54 print("num = " + obj.num);
jlaskey@3 55

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