def METHOD_NAME(self):
    url = get_operation_url("zaak__zoek")
    ZaakFactory.create(startdatum=date(2022, 9, 1))
    zaak2 = ZaakFactory.create(startdatum=date(2022, 9, 1))
    body = {"identificatie": zaak2.identificatie}
    response = self.client.post(url, body, **ZAAK_WRITE_KWARGS)
    self.assertEqual(response.status_code, status.HTTP_200_OK)
    results = response.json()["results"]
    self.assertEqual(len(results), 1)
    self.assertEqual(results[0]["identificatie"], zaak2.identificatie)