js/src/tests/non262/Iterator/prototype/lazy-methods-throw-eagerly-on-next-non-callable.js


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// |reftest| skip-if(!this.hasOwnProperty('Iterator'))

//
//
/*---
esid: pending
description: Lazy %Iterator.prototype% methods don't throw when `next` is non-callable.
info: >
  Iterator Helpers proposal 1.1.1
features: [iterator-helpers]
---*/

const methods = [
  next => Iterator.prototype.map.bind({next}, x => x),
  next => Iterator.prototype.filter.bind({next}, x => x),
  next => Iterator.prototype.take.bind({next}, 1),
  next => Iterator.prototype.drop.bind({next}, 0),
  next => Iterator.prototype.flatMap.bind({next}, x => [x]),
];

for (const method of methods) {
  method(0);
  method(false);
  method(undefined);
  method(null);
  method('');
  method(Symbol(''));
  method({});
  method([]);
}

if (typeof reportCompare == 'function')
  reportCompare(0, 0);