package org.ovirt.engine.core.dao;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import java.io.Serializable;
import java.util.List;
import org.junit.Test;
import org.ovirt.engine.core.common.businessentities.BusinessEntity;
public abstract class BaseGenericDaoTestCase<ID extends Serializable, T extends BusinessEntity<ID>, D extends GenericDao<T, ID>> extends BaseDAOTestCase {
protected D dao;
protected T existingEntity;
public BaseGenericDaoTestCase() {
super();
}
@Override
public void setUp() throws Exception {
super.setUp();
dao = prepareDao();
existingEntity = dao.get(getExistingEntityId());
}
abstract protected ID getExistingEntityId();
abstract protected D prepareDao();
/**
* Ensures that fetching a disk image with an invalid id fails.
*/
@Test
public void testGetByIdWithInvalidId() {
T result = dao.get(generateNonExistingId());
assertNull(result);
}
abstract protected ID generateNonExistingId();
/**
* Ensures that retrieving a disk image by name works as expected.
*/
@Test
public void testGet() {
T result = dao.get(existingEntity.getId());
assertNotNull(result);
assertEquals(existingEntity, result);
}
/**
* Ensures that retrieving all disk images works.
*/
@Test
public void testGetAll() {
List<T> result = dao.getAll();
assertFalse(result.isEmpty());
assertEquals(getEneitiesTotalCount(), result.size());
}
abstract protected int getEneitiesTotalCount();
/**
* Ensures that saving a disk image works as expected.
*/
@Test
public void testSave() {
T newEntity = generateNewEntity();
dao.save(newEntity);
T result = dao.get(newEntity.getId());
assertNotNull(result);
assertEquals(newEntity, result);
}
abstract protected T generateNewEntity();
/**
* Ensures that updating a disk image works as expected.
*/
@Test
public void testUpdate() {
updateExistingEntity();
dao.update(existingEntity);
T result = dao.get(existingEntity.getId());
assertNotNull(result);
assertEquals(existingEntity, result);
}
abstract protected void updateExistingEntity();
/**
* Ensures that removing a disk image works as expected.
*/
@Test
public void testRemove() {
dao.remove(existingEntity.getId());
T result = dao.get(existingEntity.getId());
assertNull(result);
}
}