js/src/tests/test262/built-ins/Iterator/prototype/flatMap/this-non-object.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.flatMap
description: >
  Iterator.prototype.flatMap throws TypeError when its this value is a non-object
info: |
  %Iterator.prototype%.flatMap ( mapper )

  2. If O is not an Object, throw a TypeError exception.

features: [iterator-helpers]
flags: []
---*/
assert.throws(TypeError, function () {
  Iterator.prototype.flatMap.call(null, () => []);
});

Object.defineProperty(Number.prototype, 'next', {
  get: function () {
    throw new Test262Error();
  },
});
assert.throws(TypeError, function () {
  Iterator.prototype.flatMap.call(0, () => []);
});

reportCompare(0, 0);