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/*
* ============LICENSE_START=======================================================
* Common Utils
* ================================================================================
* Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.utils.jpa;
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import javax.persistence.EntityManager;
import org.junit.Before;
import org.junit.Test;
public class EntityMgrCloserTest {
private EntityManager mgr;
@Before
public void setUp() throws Exception {
mgr = mock(EntityManager.class);
}
/**
* Verifies that the constructor does not do anything extra before being closed.
*/
@Test
public void testEntityMgrCloser() {
EntityMgrCloser entityMgrCloser = new EntityMgrCloser(mgr);
assertEquals(mgr, entityMgrCloser.getManager());
// verify not closed yet
verify(mgr, never()).close();
entityMgrCloser.close();
verify(mgr).close();
}
@Test
public void testGetManager() {
try (EntityMgrCloser c = new EntityMgrCloser(mgr)) {
assertEquals(mgr, c.getManager());
}
}
/**
* Verifies that the manager gets closed when close() is invoked.
*/
@Test
public void testClose() {
EntityMgrCloser entityMgrCloser = new EntityMgrCloser(mgr);
entityMgrCloser.close();
// should be closed
verify(mgr).close();
}
/**
* Ensures that the manager gets closed when "try" block exits normally.
*/
@Test
public void testClose_TryWithoutExcept() {
try (EntityMgrCloser entityMgrCloser = new EntityMgrCloser(mgr)) {
// No need to do anything in the try block
}
verify(mgr).close();
}
/**
* Ensures that the manager gets closed when "try" block throws an exception.
*/
@Test
public void testClose_TryWithExcept() {
try {
try (EntityMgrCloser c = new EntityMgrCloser(mgr)) {
throw new Exception("expected exception");
}
} catch (Exception exception) {
// Ignore the exception
}
verify(mgr).close();
}
}
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