From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- .../Object/defineProperty/15.2.3.6-4-8.js | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-8.js (limited to 'js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-8.js') diff --git a/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-8.js b/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-8.js new file mode 100644 index 0000000000..42f3d2045c --- /dev/null +++ b/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-8.js @@ -0,0 +1,42 @@ +// Copyright (c) 2012 Ecma International. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +info: | + Step 4 of defineProperty calls the [[DefineOwnProperty]] internal method + of O to define the property. Step 7b of [[DefineOwnProperty]] rejects if + current.[[Enumerable]] and desc.[[Enumerable]] are the boolean negations + of each other. +es5id: 15.2.3.6-4-8 +description: > + Object.defineProperty throws TypeError when changing + [[Enumerable]] from false to true on non-configurable data + properties +---*/ + +var o = {}; + +// create a data valued property; all other attributes default to false. +var d1 = { + value: 101, + enumerable: false, + configurable: false +}; +Object.defineProperty(o, "foo", d1); + +// now, setting enumerable to true should fail, since [[Configurable]] +// on the original property will be false. +var desc = { + value: 101, + enumerable: true +}; +assert.throws(TypeError, function() { + Object.defineProperty(o, "foo", desc); +}); +// the property should remain unchanged. +var d2 = Object.getOwnPropertyDescriptor(o, "foo"); +assert.sameValue(d2.value, 101, 'd2.value'); +assert.sameValue(d2.enumerable, false, 'd2.enumerable'); +assert.sameValue(d2.configurable, false, 'd2.configurable'); + +reportCompare(0, 0); -- cgit v1.2.3