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

//
//
/*---
esid: pending
description: Lazy %Iterator.prototype% methods throw eagerly when called on non-iterators.
info: >
  Iterator Helpers proposal 1.1.1
features: [iterator-helpers]
---*/

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

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

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