org.cambillaum.jpapersistor.persistence.dao.PersonDAOTest.java Source code

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Here is the source code for org.cambillaum.jpapersistor.persistence.dao.PersonDAOTest.java

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/*
 * Copyright (C) 2012 Mathieu Cambillau <cambillaum@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.cambillaum.jpapersistor.persistence.dao;

import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.TypedQuery;
import javax.persistence.criteria.CriteriaQuery;
import org.cambillaum.jpapersistor.persistence.configuration.PersistenceConfiguration;
import static org.junit.Assert.*;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.support.AnnotationConfigContextLoader;
import org.springframework.transaction.annotation.Transactional;

/**
 *
 * @author Mathieu Cambillau <cambillaum@gmail.com>
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = PersistenceConfiguration.class, loader = AnnotationConfigContextLoader.class)
public class PersonDAOTest {

    private Person person;
    @Autowired
    private EntityManager em;
    @Autowired
    private PersonDAO personDAO;

    @Before
    public void setUp() {
        this.person = new Person("someBody");
    }

    @Test
    @Transactional
    public void testSave() {
        Person savedPerson = this.personDAO.save(this.person);
        this.em.clear();
        Person retrievedPerson = this.em.find(Person.class, savedPerson.getId());
        assertPerson(this.person, retrievedPerson);
    }

    @Test
    @Transactional
    public void testUpdate() {
        Person savedPerson = this.em.merge(this.person);
        this.em.flush();
        this.person.setName("newName");
        savedPerson.setName(this.person.getName());
        this.personDAO.update(savedPerson);
        this.em.flush();
        this.em.clear();
        Person retrievedPerson = this.em.find(Person.class, savedPerson.getId());
        assertPerson(this.person, retrievedPerson);
    }

    @Test
    @Transactional
    public void testDelete() {
        Person savedPerson = this.em.merge(this.person);
        this.em.flush();
        this.personDAO.delete(savedPerson);
        this.em.flush();
        this.em.clear();
        Person retrievedPerson = this.em.find(Person.class, savedPerson.getId());
        assertNull(retrievedPerson);
    }

    @Test
    @Transactional
    public void testFindById() {
        Person savedPerson = this.em.merge(this.person);
        this.em.flush();
        this.em.clear();
        Person retrievedPerson = this.personDAO.findById(savedPerson.getId());
        assertPerson(this.person, retrievedPerson);
    }

    @Test
    @Transactional
    public void testFindAll() {
        this.em.merge(this.person);
        this.em.flush();
        this.em.clear();
        List<Person> retrievedPersons = this.personDAO.findAll();
        assertEquals(1, retrievedPersons.size());
        Person retrievedPerson = retrievedPersons.get(0);
        assertPerson(this.person, retrievedPerson);
    }

    @Test
    @Transactional
    public void testFindOneWithTypedQuery() {
        this.em.persist(this.person);
        this.em.flush();
        this.em.clear();
        TypedQuery<Person> query = this.em.createQuery("Select p from " + Person.class.getName() + " p",
                Person.class);
        Person retrievedPerson = this.personDAO.findOne(query);
        assertPerson(this.person, retrievedPerson);
    }

    @Test
    @Transactional
    public void testFindOneWithCriteriaQuery() {
        this.em.persist(this.person);
        this.em.flush();
        this.em.clear();
        CriteriaQuery<Person> criteriaQuery = this.em.getCriteriaBuilder().createQuery(Person.class);
        criteriaQuery.from(Person.class);
        Person retrievedPerson = this.personDAO.findOne(criteriaQuery);
        assertPerson(this.person, retrievedPerson);
    }

    @Test
    @Transactional
    public void testFindManyWithTypedQuery() {
        this.em.persist(this.person);
        this.em.flush();
        this.em.clear();
        TypedQuery<Person> query = this.em.createQuery("Select p from " + Person.class.getName() + " p",
                Person.class);
        List<Person> retrievedPersons = this.personDAO.findMany(query);
        assertEquals(1, retrievedPersons.size());
        Person retrievedPerson = retrievedPersons.get(0);
        assertPerson(this.person, retrievedPerson);
    }

    @Test
    @Transactional
    public void testFindManyWithCriteriaQuery() {
        this.em.persist(this.person);
        this.em.flush();
        this.em.clear();
        CriteriaQuery<Person> criteriaQuery = this.em.getCriteriaBuilder().createQuery(Person.class);
        criteriaQuery.from(Person.class);
        List<Person> retrievedPersons = this.personDAO.findMany(criteriaQuery);
        assertEquals(1, retrievedPersons.size());
        Person retrievedPerson = retrievedPersons.get(0);
        assertPerson(this.person, retrievedPerson);
    }

    private void assertPerson(Person expected, Person actual) {
        assertEquals(expected.getName(), actual.getName());
    }
}