js/src/tests/test262/built-ins/Iterator/prototype/toArray/next-method-returns-throwing-value-done.js


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// |reftest| shell-option(--enable-iterator-helpers) skip-if(!this.hasOwnProperty('Iterator')||!xulRuntime.shell) -- iterator-helpers is not enabled unconditionally, requires shell-options
// Copyright (C) 2023 Michael Ficarra. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-iteratorprototype.toArray
description: >
  Underlying iterator next returns object with throwing value getter, but is already done
info: |
  %Iterator.prototype%.toArray ( )

features: [iterator-helpers]
flags: []
---*/
class ThrowingIterator extends Iterator {
  next() {
    return {
      done: true,
      get value() {
        throw new Test262Error();
      },
    };
  }
  return() {
    throw new Error();
  }
}

let iterator = new ThrowingIterator();
iterator.toArray();

reportCompare(0, 0);