/*
* Copyright 2010 Harald Wellmann
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.ops4j.pax.exam.regression.cdi.library;
import static org.junit.Assert.assertEquals;
import java.util.List;
import javax.inject.Inject;
import javax.persistence.EntityManager;
import javax.persistence.TypedQuery;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.ops4j.pax.exam.junit.PaxExam;
import org.ops4j.pax.exam.sample1.model.Author;
import org.ops4j.pax.exam.sample1.model.Book;
import org.ops4j.pax.exam.spi.reactors.ExamReactorStrategy;
import org.ops4j.pax.exam.spi.reactors.PerClass;
@RunWith(PaxExam.class)
@ExamReactorStrategy(PerClass.class)
public class AuthorTest {
@Inject
private EntityManager em;
@Before
public void setUp() {
if (getNumBooks() != 0)
return;
Author mann = new Author();
mann.setFirstName("Thomas");
mann.setLastName("Mann");
Author steinbeck = new Author();
steinbeck.setFirstName("John");
steinbeck.setLastName("Steinbeck");
Book buddenbrooks = new Book();
buddenbrooks.setTitle("Buddenbrooks");
buddenbrooks.setAuthor(mann);
mann.getBooks().add(buddenbrooks);
Book eden = new Book();
eden.setTitle("East of Eden");
eden.setAuthor(steinbeck);
steinbeck.getBooks().add(eden);
em.getTransaction().begin();
em.persist(mann);
em.persist(steinbeck);
em.persist(buddenbrooks);
em.persist(eden);
em.getTransaction().commit();
}
@Test
public void byAuthor() {
String jpql = "select b from Book b where b.author.lastName = :lastName";
TypedQuery<Book> query = em.createQuery(jpql, Book.class);
query.setParameter("lastName", "Mann");
List<Book> books = query.getResultList();
assertEquals(1, books.size());
Book book = books.get(0);
assertEquals("Buddenbrooks", book.getTitle());
}
public long getNumBooks() {
String jpql = "select count(b) from Book b";
Long numBooks = (Long) em.createQuery(jpql).getSingleResult();
return numBooks;
}
}