def test_iter_request_datasets(self):
rd = self.test_data.get_rd('cancm4_tas')
field = rd.get()
field.name = 'foo'
rdc = RequestDatasetCollection(target=[rd, field])
tt = list(rdc.iter_request_datasets())
self.assertEqual(len(tt), 1)
self.assertEqual(len(rdc), 2)
self.assertIsInstance(tt[0], RequestDataset)
