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);