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

/*---
esid: pending
description: Eagerly throw TypeError when `this` is not an iterator.
info:
features: [iterator-helpers]
---*/

const mapper = (x) => x;

assertThrowsInstanceOf(() => Iterator.prototype.map.call(undefined, mapper), TypeError);
assertThrowsInstanceOf(() => Iterator.prototype.map.call(null, mapper), TypeError);
assertThrowsInstanceOf(() => Iterator.prototype.map.call(0, mapper), TypeError);
assertThrowsInstanceOf(() => Iterator.prototype.map.call(false, mapper), TypeError);
assertThrowsInstanceOf(() => Iterator.prototype.map.call('', mapper), TypeError);
assertThrowsInstanceOf(() => Iterator.prototype.map.call(new Symbol(''), mapper), TypeError);

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