test262/test/built-ins/Promise/any/invoke-then-error-close.js

// Copyright (C) 2019 Leo Balter, 2020 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: >
  Error thrown when invoking the instance's `then` method (closing iterator)
esid: sec-promise.any
info: |
  5. Let result be PerformPromiseAny(iteratorRecord, C, promiseCapability).
  6. If result is an abrupt completion, then
    a. If iteratorRecord.[[Done]] is false, set result to IteratorClose(iteratorRecord, result).
    b. IfAbruptRejectPromise(result, promiseCapability).

  Runtime Semantics: PerformPromiseAny

  r. Perform ? Invoke(nextPromise, "then", « resultCapability.[[Resolve]], rejectElement »).

flags: [async]
features: [Promise.any, Symbol.iterator, arrow-function, computed-property-names, Symbol]
---*/

let error = new Test262Error();
let promise = Promise.resolve();
let returnCount = 0;
let iter = {
  [Symbol.iterator]() {
    return {
      next() {
        return {
          done: false,
          value: promise
        };
      },
      return() {
        returnCount += 1;
        return {};
      }
    };
  }
};

promise.then = function() {
  throw error;
};

Promise.any(iter).then(() => {
  $DONE('The promise should be rejected, but was resolved');
}, (reason) => {
  assert.sameValue(returnCount, 1);
  assert.sameValue(reason, error);
}).then($DONE, $DONE);