def testExternalIdMatching(self):
# bootstrap a stub case
case = CommCareCase(domain=self.domain, type=self.default_case_type)
external_id = 'importer-test-external-id'
case.external_id = external_id
case.save()
self.assertEqual(1, len(get_case_ids_in_domain(self.domain)))
headers = ['external_id', 'age', 'sex', 'location']
config = self._config(headers, search_field='external_id')
file = MockExcelFile(header_columns=headers, num_rows=3,
row_generator=id_match_generator(external_id))
res = do_import(file, config, self.domain)
self.assertEqual(0, res['created_count'])
self.assertEqual(3, res['match_count'])
self.assertFalse(res['errors'])
# shouldn't create any more cases, just the one
self.assertEqual(1, len(get_case_ids_in_domain(self.domain)))
