diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/non262/object/extensibility-01.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | js/src/tests/non262/object/extensibility-01.js | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/js/src/tests/non262/object/extensibility-01.js b/js/src/tests/non262/object/extensibility-01.js new file mode 100644 index 0000000000..c001f38254 --- /dev/null +++ b/js/src/tests/non262/object/extensibility-01.js @@ -0,0 +1,103 @@ +/* + * Any copyright is dedicated to the Public Domain. + * http://creativecommons.org/licenses/publicdomain/ + * Contributor: + * Jeff Walden <jwalden+code@mit.edu> + */ + +var gTestfile = '15.2.3.10-01.js'; +//----------------------------------------------------------------------------- +var BUGNUMBER = 492849; +var summary = 'ES5: Implement Object.preventExtensions, Object.isExtensible'; + +print(BUGNUMBER + ": " + summary); + +/************** + * BEGIN TEST * + **************/ + +function trySetProperty(o, p, v, strict) +{ + function strictSetProperty() + { + "use strict"; + o[p] = v; + } + + function setProperty() + { + o[p] = v; + } + + assertEq(Object.prototype.hasOwnProperty.call(o, p), false); + + try + { + if (strict) + strictSetProperty(); + else + setProperty(); + if (o[p] === v) + return "set"; + if (p in o) + return "set-converted"; + return "swallowed"; + } + catch (e) + { + return "throw"; + } +} + +function tryDefineProperty(o, p, v) +{ + assertEq(Object.prototype.hasOwnProperty.call(o, p), false); + + try + { + Object.defineProperty(o, p, { value: v }); + if (o[p] === v) + return "set"; + if (p in o) + return "set-converted"; + return "swallowed"; + } + catch (e) + { + return "throw"; + } +} + +assertEq(typeof Object.preventExtensions, "function"); +assertEq(Object.preventExtensions.length, 1); + +var slowArray = [1, 2, 3]; +slowArray.slow = 5; +var objs = + [{}, { 1: 2 }, { a: 3 }, [], [1], [, 1], slowArray, function a(){}, /a/]; + +for (var i = 0, sz = objs.length; i < sz; i++) +{ + var o = objs[i]; + assertEq(Object.isExtensible(o), true, "object " + i + " not extensible?"); + + var o2 = Object.preventExtensions(o); + assertEq(o, o2); + + assertEq(Object.isExtensible(o), false, "object " + i + " is extensible?"); + + assertEq(trySetProperty(o, "baz", 17, true), "throw", + "unexpected behavior for strict-mode property-addition to " + + "object " + i); + assertEq(trySetProperty(o, "baz", 17, false), "swallowed", + "unexpected behavior for property-addition to object " + i); + + assertEq(tryDefineProperty(o, "baz", 17), "throw", + "unexpected behavior for new property definition on object " + i); +} + +/******************************************************************************/ + +reportCompare(true, true); + +print("All tests passed!"); |