如何重置Spring JUnit应用程序上下文?

我正在使用Spring 3.1.1.RELEASE,JUnit 4.8.1和HSQL 2.7.7内存数据库。我有一个测试班级注释为

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration({ "classpath:test-trainingSessionServiceContext.xml" })

@DirtiesContext(classMode = ClassMode.AFTER_EACH_TEST_METHOD)

public class TrainingSessionServiceTest

{

问题是,当我运行“ mvn clean test”时,似乎所有的测试类都在上述类失败之后运行,因为内存数据库已被破坏并且没有重新创建。我收到类似的错误

org.hibernate.exception.SQLGrammarException: user lacks privilege or object not found: CB_ORGANIZATION" type="javax.persistence.PersistenceException">javax.persistence.PersistenceException:   org.hibernate.exception.SQLGrammarException: user lacks privilege or object not found: CB_ORGANIZATION

at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1360)

at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:817)

at org.hibernate.ejb.AbstractEntityManagerImpl.find(AbstractEntityManagerImpl.java:771)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:240)

at $Proxy46.find(Unknown Source)

at org.mainco.subco.organization.repo.OrganizationDaoImpl.findById(OrganizationDaoImpl.java:77)

at org.mainco.subco.pd.repo.LinkDaoTest.createDummyLink(LinkDaoTest.java:686)

at org.mainco.subco.pd.repo.LinkDaoTest.testSaveLink(LinkDaoTest.java:67)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)

at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)

这是我设置给出异常的测试类(在上述类之后运行)的方式……

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration({ "classpath:test-context.xml" })

public class LinkDaoTest extends AbstractTransactionalJUnit4SpringContextTests

{

在运行每个测试类之前,有什么方法可以将应用程序上下文恢复到原始状态?我不想让“ TrainingSessionServiceTest”类扩展AbstractTransactionalJUnit4SpringContextTests。这是我的应用程序上下文的相关部分:

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">

<property name="driverClassName" value="org.hsqldb.jdbcDriver"/>

<property name="url" value="jdbc:hsqldb:mem:pd" />

<property name="username" value="sa" />

<property name="password" value="" />

</bean>

<bean id="entityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">

<property name="jpaVendorAdapter">

<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter"/>

</property>

<property name="persistenceXmlLocation" value="classpath:META-INF/test-persistence.xml"/>

<property name="persistenceUnitName" value="testingDatabase"/>

<property name="dataSource" ref="dataSource"/>

</bean>

<bean id="sharedEntityManager" class="org.springframework.orm.jpa.support.SharedEntityManagerBean">

<property name="entityManagerFactory" ref="entityManagerFactory"/>

</bean>

<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">

<property name="entityManagerFactory" ref="entityManagerFactory"/>

</bean>

<tx:annotation-driven />

<jdbc:embedded-database id="embedded" type="HSQL"/>

<jdbc:initialize-database data-source="dataSource">

<jdbc:script location="classpath:db-test-data.sql"/>

</jdbc:initialize-database>

回答:

使用@DirtiesContext强制重置。例如,我有:

@ContextConfiguration(classes={BlahTestConfig.class})

@DirtiesContext(classMode = ClassMode.AFTER_EACH_TEST_METHOD)

public class SomeTest {

@Autowired XXXX xx;

@Autowired YYYY yy;

@Before

public void setUp() {

MockitoAnnotations.initMocks(this);

when(YYYY.newYY()).thenReturn(zz);

}

@Test

public void testSomeTest() {

XX.changeSomething("StringTest");

XX.doSomething();

check_for_effects();

}

@Test

public void testSomeOtherTest() {

XX.changeSomething("SomeotherString");

XX.doSomething();

check_for_effects();

}

从Spring文档

表示在测试执行期间对基础Spring ApplicationContext进行了如下污染(修改),并且无论测试是否通过,都应将其关闭:

  • 在当前测试类之后,当在类模式设置为AFTER_CLASS的类上声明时,这是默认的类模式。

  • 在当前测试类中的每个测试方法之后,在类模式设置为AFTER_EACH_TEST_METHOD的类上声明时。

  • 当前测试之后,当在方法上声明时。

如果测试已修改上下文(例如,通过替换bean定义),请使用此注释。随后的测试提供了新的上下文。[注] @DirtiesContext在JUnit 3.8中的局限性

在JUnit 3.8环境中,@DirtiesContext仅在方法上受支持,因此在类级别不受支持。

你可以将@DirtiesContext用作同一类中的类级和方法级注释。在这种情况下,在任何带注释的方法之后以及整个类之后,ApplicationContext都被标记为dirties。如果将ClassMode设置为AFTER_EACH_TEST_METHOD,则在类中的每个测试方法之后将上下文标记为dirties。

@DirtiesContext

public class ContextDirtyingTests {

// some tests that result in the Spring container being dirtied

}

@DirtiesContext(classMode = ClassMode.AFTER_EACH_TEST_METHOD)

public class ContextDirtyingTests {

// some tests that result in the Spring container being dirtied

}

@DirtiesContext

@Test

public void testProcessWhichDirtiesAppCtx() {

// some logic that results in the Spring container being dirtied

}

当应用程序上下文标记为脏时,将其从测试框架的缓存中删除并关闭;因此,可以为需要上下文具有相同资源位置集的任何后续测试重建基础Spring容器。

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