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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-20.js | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-20.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-20.js | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-20.js b/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-20.js new file mode 100644 index 0000000000..7814434368 --- /dev/null +++ b/js/src/tests/test262/built-ins/Object/defineProperty/15.2.3.6-4-20.js @@ -0,0 +1,43 @@ +// 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. For non-configurable properties, step 11.a.ii + of [[DefineOwnProperty]] rejects changing the getter if present. +es5id: 15.2.3.6-4-20 +description: > + Object.defineProperty throws TypeError when changing getter (if + present) of non-configurable accessor properties(8.12.9 step + 11.a.ii) +---*/ + +var o = {}; + +// create an accessor property; all other attributes default to false. +// dummy getter/setter +var getter = function() { + return 1; +} +var d1 = { + get: getter, + configurable: false +}; +Object.defineProperty(o, "foo", d1); + +// now, trying to change the setter should fail, since [[Configurable]] +// on the original property will be false. +var desc = { + get: undefined +}; +assert.throws(TypeError, function() { + Object.defineProperty(o, "foo", desc); +}); +var d2 = Object.getOwnPropertyDescriptor(o, "foo"); + +assert.sameValue(d2.get, getter, 'd2.get'); +assert.sameValue(d2.configurable, false, 'd2.configurable'); +assert.sameValue(d2.enumerable, false, 'd2.enumerable'); + +reportCompare(0, 0); |