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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /webidl/ecmascript-binding/global-mutable-prototype.any.shadowrealm.html - WPT Dashboard Interop Dashboard
// META: global=shadowrealm
// META: title=Mutability of the global prototype chain
const objects = [];
setup(() => {
for (let object = self; object; object = Object.getPrototypeOf(object)) {
objects.push(object);
}
});
test(() => {
for (const object of objects) {
const proto = Object.getPrototypeOf(object);
const plainObject = {};
Object.setPrototypeOf(object, plainObject);
assert_equals(Object.getPrototypeOf(object), plainObject);
Object.setPrototypeOf(object, proto);
}
}, "Setting to a different prototype");
test(() => {
for (const object of objects) {
const expected = Object.getPrototypeOf(object);
Object.setPrototypeOf(object, expected);
assert_equals(Object.getPrototypeOf(object), expected);
}
}, "Setting to the same prototype");