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// |reftest| shell-option(--enable-promise-allkeyed) skip-if(!Promise.allKeyed||!xulRuntime.shell) async -- await-dictionary is not enabled unconditionally, requires shell-options
// Copyright (C) 2026 Danial Asaria (Bloomberg LP). All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-performpromiseallkeyed
description: >
Error thrown when accessing the instance's `then` method (rejecting Promise)
info: |
PerformPromiseAllKeyed ( variant, promises, constructor, resultCapability, promiseResolve )
...
6. For each element key of allKeys, do
...
b. If desc is not undefined and desc.[[Enumerable]] is true, then
...
iv. Let nextPromise be ? Call(promiseResolve, constructor, « nextValue »).
...
xiii. Perform ? Invoke(nextPromise, "then", « onFulfilled, onRejected »).
includes: [asyncHelpers.js]
flags: [async]
features: [await-dictionary]
---*/
var error = new Test262Error();
var promise = new Promise(function() {});
Object.defineProperty(promise, "then", {
get: function() {
throw error;
}
});
asyncTest(function() {
return Promise.allSettledKeyed({ key: promise }).then(function() {
throw new Test262Error('The promise should be rejected.');
}, function(reason) {
assert.sameValue(reason, error);
});
});