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// |reftest| skip-if(!this.hasOwnProperty('AsyncIterator'))
class TestIterator extends AsyncIterator {
constructor(value) {
super();
this.value = value;
}
next() {
return Promise.resolve(this.value);
}
}
const sum = (x, y) => x + y;
function check(value) {
const iter = new TestIterator(value);
iter.reduce(sum).then(() => assertEq(true, false, 'expected error'), err => {
assertEq(err instanceof TypeError, true);
});
}
check();
check(undefined);
check(null);
check(0);
check(false);
check('');
check(Symbol(''));
if (typeof reportCompare === 'function')
reportCompare(0, 0);
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