def test_comm_prov_to_patient
    patient = build_record_from_xml('test/fixtures/cat1_fragments/comm_prov_to_patient_fragment.xml')
    communication = patient.communications.first
    expected_start = HealthDataStandards::Util::HL7Helper.timestamp_to_integer('20100605220000')
    assert communication.codes['LOINC'].include?('69981-9')