def test_iter_pages(self):
SampleModel.manager.create(**{})
items, total = SampleModel.query.all(), SampleModel.query.count()
p = Pagination(SampleModel.query, 1, 1, total, items)
self.assertNotEqual(p._jsonify_items(), [])
_ = [i for i in p.iter_pages()]
self.assertIn(1, _)
