39 lines
1.6 KiB
HTML
39 lines
1.6 KiB
HTML
<!DOCTYPE html>
|
|
<meta charset="utf-8">
|
|
<title>[Replaceable] setter throws TypeError if [[DefineOwnProperty]] fails</title>
|
|
<link rel="help" href="https://heycam.github.io/webidl/#dfn-attribute-setter">
|
|
|
|
<script src="../../resources/testharness.js"></script>
|
|
<script src="../../resources/testharnessreport.js"></script>
|
|
|
|
<body>
|
|
<script>
|
|
for (const key of ["self", "parent", "origin", "innerWidth"]) {
|
|
test(() => {
|
|
Object.defineProperty(window, key, { configurable: false });
|
|
assert_throws(new TypeError, () => { window[key] = 1; });
|
|
|
|
const desc = Object.getOwnPropertyDescriptor(window, key);
|
|
assert_false("value" in desc);
|
|
assert_equals(typeof desc.get, "function");
|
|
assert_equals(typeof desc.set, "function");
|
|
assert_true(desc.enumerable);
|
|
assert_false(desc.configurable);
|
|
}, `window.${key} setter throws TypeError if called on non-configurable accessor property`);
|
|
}
|
|
|
|
for (const key of ["screen", "length", "event", "outerHeight"]) {
|
|
test(() => {
|
|
const { set } = Object.getOwnPropertyDescriptor(window, key);
|
|
Object.defineProperty(window, key, { value: 1, writable: false, configurable: false });
|
|
assert_throws(new TypeError, () => { set.call(window, 2); });
|
|
|
|
const desc = Object.getOwnPropertyDescriptor(window, key);
|
|
assert_equals(desc.value, 1);
|
|
assert_false(desc.writable);
|
|
assert_true(desc.enumerable);
|
|
assert_false(desc.configurable);
|
|
}, `window.${key} setter throws TypeError if called on non-configurable non-writable data property`);
|
|
}
|
|
</script>
|