public virtual void test_builder()
        {
            CdsIsdaCreditCurveNode test = CdsIsdaCreditCurveNode.builder().label(LABEL).template(TEMPLATE).observableId(QUOTE_ID).quoteConvention(CdsQuoteConvention.PAR_SPREAD).legalEntityId(LEGAL_ENTITY).build();

            assertEquals(test.Label, LABEL);
            assertEquals(test.LegalEntityId, LEGAL_ENTITY);
            assertEquals(test.ObservableId, QUOTE_ID);
            assertEquals(test.Template, TEMPLATE);
            assertEquals(test.date(VAL_DATE, REF_DATA), date(2025, 6, 20));
        }
 public virtual void test_build_fail_noRate()
 {
     assertThrows(() => CdsIsdaCreditCurveNode.builder().template(TEMPLATE).observableId(QUOTE_ID).legalEntityId(LEGAL_ENTITY).quoteConvention(CdsQuoteConvention.QUOTED_SPREAD).build(), typeof(System.ArgumentException));
 }