如何在JUnit测试(容器外部)中模拟TransactionManager? [英] How do I mock a TransactionManager in a JUnit test, (outside of the container)?

问题描述

我正在使用Spring 3.1.0.RELEASE，JUnit 4.8.1，最终将我的应用程序部署到JBoss 4.2服务器上(我知道，我知道).作为设置单元测试的一部分，我在Spring测试应用程序上下文中拥有了它.

I'm using Spring 3.1.0.RELEASE, JUnit 4.8.1, and ultimately deploying my application to a JBoss 4.2 server (I know, I know). As part of setting up my unit test, I have this in my Spring test application context ...

<bean id="transactionManager"  
    class="org.springframework.transaction.jta.JtaTransactionManager">
        <property name="userTransactionName">
        <value>UserTransaction</value>
    </property> 
</bean>

当然，现在这失败了，因为JNDI名称"UserTransaction"没有任何绑定.如何模拟交易管理器?我使用的是org.mockejb框架，但对任何合适的模拟框架都是开放的.

Of course, right now this fails because there is nothing bound to the JNDI name, "UserTransaction." How do I mock a transaction manager? I'm using the org.mockejb framework but an open to any suitable mocking frameworks.

推荐答案

我们只为事务管理器创建一个空的实现，并确保在单元测试使用的spring-context中使用该实现

We simply create an empty implementaion for the transaction manager, and ensure that this implementation is used in the spring-context used by the unit test

package sample;

import org.springframework.stereotype.Service;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.TransactionDefinition;
import org.springframework.transaction.TransactionException;
import org.springframework.transaction.TransactionStatus;

public class MockedTransactionManager implements PlatformTransactionManager {

    @Override
    public TransactionStatus getTransaction(TransactionDefinition definition) throws TransactionException {
        return null;
    }

    @Override
    public void commit(TransactionStatus status) throws TransactionException {

    }

    @Override
    public void rollback(TransactionStatus status) throws TransactionException {

    }

}

..然后在spring-xml文件中看起来像..

.. and in the spring-xml file then looks like..

<bean id="transactionManager" class="sample.MockedTransactionManager"/>

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