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QUnit.test('Object.iterateKeys', assert => {
const { iterateKeys } = Object;
assert.isFunction(iterateKeys);
assert.name(iterateKeys, 'iterateKeys');
assert.arity(iterateKeys, 1);
assert.looksNative(iterateKeys);
assert.nonEnumerable(Object, 'iterateKeys');
const object = {
q: 1,
w: 2,
e: 3,
};
const iterator = iterateKeys(object);
assert.isIterator(iterator);
assert.isIterable(iterator);
assert.same(iterator[Symbol.toStringTag], 'Object Iterator');
assert.deepEqual(iterator.next(), {
value: 'q',
done: false,
});
delete object.w;
assert.deepEqual(iterator.next(), {
value: 'e',
done: false,
});
assert.deepEqual(iterator.next(), {
value: undefined,
done: true,
});
});
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