spring SharedEntityManagerFactoryTests 源码
spring SharedEntityManagerFactoryTests 代码
文件路径：/spring-orm/src/test/java/org/springframework/orm/jpa/support/SharedEntityManagerFactoryTests.java
/*
* Copyright 2002-2019 the original author or authors.
*
* 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
*
* https://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.springframework.orm.jpa.support;
import jakarta.persistence.EntityManager;
import jakarta.persistence.EntityManagerFactory;
import org.junit.jupiter.api.Test;
import org.springframework.orm.jpa.EntityManagerHolder;
import org.springframework.orm.jpa.EntityManagerProxy;
import org.springframework.transaction.support.TransactionSynchronizationManager;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatIllegalStateException;
import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
/**
* @author Rod Johnson
* @author Juergen Hoeller
* @author Phillip Webb
*/
public class SharedEntityManagerFactoryTests {
@Test
public void testValidUsage() {
Object o = new Object();
EntityManager mockEm = mock(EntityManager.class);
given(mockEm.isOpen()).willReturn(true);
EntityManagerFactory mockEmf = mock(EntityManagerFactory.class);
given(mockEmf.createEntityManager()).willReturn(mockEm);
SharedEntityManagerBean proxyFactoryBean = new SharedEntityManagerBean();
proxyFactoryBean.setEntityManagerFactory(mockEmf);
proxyFactoryBean.afterPropertiesSet();
assertThat(EntityManager.class.isAssignableFrom(proxyFactoryBean.getObjectType())).isTrue();
assertThat(proxyFactoryBean.isSingleton()).isTrue();
EntityManager proxy = proxyFactoryBean.getObject();
assertThat(proxyFactoryBean.getObject()).isSameAs(proxy);
assertThat(proxy.contains(o)).isFalse();
boolean condition = proxy instanceof EntityManagerProxy;
assertThat(condition).isTrue();
EntityManagerProxy emProxy = (EntityManagerProxy) proxy;
assertThatIllegalStateException().as("outside of transaction").isThrownBy(
emProxy::getTargetEntityManager);
TransactionSynchronizationManager.bindResource(mockEmf, new EntityManagerHolder(mockEm));
try {
assertThat(emProxy.getTargetEntityManager()).isSameAs(mockEm);
}
finally {
TransactionSynchronizationManager.unbindResource(mockEmf);
}
assertThat(TransactionSynchronizationManager.getResourceMap().isEmpty()).isTrue();
verify(mockEm).contains(o);
verify(mockEm).close();
}
}
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