Próbuję przetestować repozytorium JPA. Oto mój kod klienta / testowy:

@Test
    public void testFindBoitesByMultiFieldWithIdentifiantSet() {
        BoiteDataOnDemand dod = new BoiteDataOnDemand();
        Boite boite = dod.getSpecificBoite(0);
        boite.setIdentifiant("theIdentifiant");
        boiteRepository.save(boite);
        assertEquals(10, Boite.countBoites());
        BoiteQueryInfo boiteQueryInfo = new BoiteQueryInfo();
        boiteQueryInfo.setIdentifiant("theIdentifiant");
        List<Boite> boites = boiteRepository.findBoitesByMultiField(boiteQueryInfo, 1, 5, "identifiant", "desc");
        assertEquals(1, boites.size());
    }

Oto metoda repozytorium:

@Override
    public List<Boite> findBoitesByMultiField(BoiteQueryInfo boiteQueryInfo, Integer firstResult_, Integer maxResults_, String sort_, String order_) {
        log.debug("findBoitesByMultiField");

        final String identifiant = boiteQueryInfo.getIdentifiant();
        final Date dateOuvertureFrom = boiteQueryInfo.getDateOuvertureFrom();

        CriteriaBuilder criteriaBuilder = em.getCriteriaBuilder();
        CriteriaQuery<Boite> c = criteriaBuilder.createQuery(Boite.class);
        Root<Boite> boite = c.from(Boite.class);
        List<Predicate> criteria = new ArrayList<Predicate>();
            ...
        if (identifiant != null && !identifiant.trim().equals("")) {
            ParameterExpression<String> parameter = criteriaBuilder.parameter(String.class, "identifiant");
            Predicate condition = criteriaBuilder.like(boite.<String> get("identifiant"), parameter);
            criteria.add(condition);
        }

        if (dateOuvertureFrom != null && dateOuvertureTo != null) {
            ParameterExpression<Date> parameterDateOuvertureFrom = criteriaBuilder.parameter(Date.class, "dateOuvertureFrom");
            ParameterExpression<Date> parameterDateOuvertureTo = criteriaBuilder.parameter(Date.class, "dateOuvertureTo");
            Predicate condition = criteriaBuilder.between(boite.<Date> get("dateOuverture"), parameterDateOuvertureFrom, parameterDateOuvertureTo);
            criteria.add(condition);
        } else if (dateOuvertureFrom != null) {
            ParameterExpression<Date> parameter = criteriaBuilder.parameter(Date.class, "dateOuvertureFrom");
            Predicate condition = criteriaBuilder.greaterThanOrEqualTo(boite.<Date> get("dateOuverture"), parameter);
            criteria.add(condition);
        } else if (dateOuvertureTo != null) {
            ParameterExpression<Date> parameter = criteriaBuilder.parameter(Date.class, "dateOuvertureTo");
            Predicate condition = criteriaBuilder.lessThanOrEqualTo(boite.<Date> get("dateOuverture"), parameter);
            criteria.add(condition);
        }

            ...    
        if (order.equalsIgnoreCase("desc")) {
            c.orderBy(criteriaBuilder.desc(boite.get(sort)));
        } else {
            c.orderBy(criteriaBuilder.asc(boite.get(sort)));
        }

        for (Predicate predicate : criteria) {
            c.where(criteriaBuilder.and(predicate));
        }

        TypedQuery<Boite> q = em.createQuery(c);

        if (identifiant != null && !identifiant.trim().equals("")) {
            q.setParameter("identifiant", "%" + identifiant + "%");
        }

        if (dateOuvertureFrom != null && dateOuvertureTo != null) {
            q.setParameter("dateOuvertureFrom", dateOuvertureFrom);
            q.setParameter("dateOuvertureTo", dateOuvertureTo);
        } else if (dateOuvertureFrom != null) {
            q.setParameter("dateOuvertureFrom", dateOuvertureFrom);
        } else if (dateOuvertureTo != null) {
            q.setParameter("dateOuvertureTo", dateOuvertureTo);
        }

            ...    
        return q.setFirstResult(firstResult).setMaxResults(maxResults).getResultList();
    }

Jednak test zawsze kończy się niepowodzeniemassertEquals(1, boites.size()); wskazując, że żaden wynik nie jest zwracany, tj. (java.lang.AssertionError: expected:<1> but was:<0>).

Podejrzewam, że coś jest nie tak:

for (Predicate predicate : criteria) {
            c.where(criteriaBuilder.and(predicate));
        }

Ale nie jestem pewien, jak „i” kryteria.

Czy ktoś może udzielić porady?

P.S. FYI,BoiteDataOnDemand wstawia losowo 10 wierszy doboite stół.

EDIT: kod został zmodyfikowany, aby był krótszy.