Mar*_*rek 7 java testing testng integration-testing hibernate
测试DAO层的正确方法是什么？
我有创建和销毁的方法@BeforeMethod和@AfterMethod注释方法,SessionFactory但它不能用于多个测试.如果一个接一个地运行测试,但是当它们一起运行时没有使用maven构建,所以我决定我应该使用TestNg组对它们进行分组,@BeforeGroup并且@AfterGroup使用Hibernate做同样的事情.
所以我做了这样的事情:
@Test(groups = {"integration"})
public class IntegrationTest
{
protected SessionFactory sessionFactory;
@BeforeGroups(groups = {"integration"})
public void setUpHibernate() throws Exception
{
// here I configure sessionFactory
this.sessionFactory = ...
}
@AfterGroups(groups = {"integration"})
public void putItDown() throws Exception
{
sessionFactory.close();
}
}
我的每个测试都像这样扩展了这个类
@Test(groups = "integration")
public class RateRepositoryHibernateTest extends IntegrationTest
{
...
}
然后我注意到只有一个扩展测试sessionFactory设置和休息,null这并不奇怪,因为该方法应该运行一次.现在我真的不知道该怎么做.
如何从@BeforeGroup组测试方法的方法传递数据？
要么
怎么做不同的？
要么
如何安装和拆卸SessionFactory前,每次测试后,但在某种程度上,我不会得到任何pesimistic锁定异常多的测试？
- 编辑:
解答如何以不同方式进行解释也是受欢迎的.我想知道使用TestNg,Hibernate和一些内存数据库进行集成测试的最新技术.
- 编辑2:
堆栈跟踪,下面的测试代码
Hibernate: select roomtype_.type_name from ROOM_TYPES roomtype_ where roomtype_.type_name=?
Hibernate: call next value for rates_sequence
Hibernate: call next value for rates_sequence
Hibernate: insert into ROOMS (prefix, housekeepingStatus, availability, maxExtraBeds, standard, maximum, type, name) values (?, ?, ?, ?, ?, ?, ?, ?)
Hibernate: insert into RATES (standardPrice, upchargeExtraPerson, upchargeExtraBed, room, RATE_TYPE, id) values (?, ?, ?, ?, 'R', ?)
Hibernate: insert into RATES (standardPrice, upchargeExtraPerson, upchargeExtraBed, room, seasonId, RATE_TYPE, id) values (?, ?, ?, ?, ?, 'S', ?)
Hibernate: insert into ROOM_TYPES (type_name) values (?)
Hibernate: select roomtype_.type_name from ROOM_TYPES roomtype_ where roomtype_.type_name=?
Hibernate: call next value for rates_sequence
Hibernate: insert into ROOMS (prefix, housekeepingStatus, availability, maxExtraBeds, standard, maximum, type, name) values (?, ?, ?, ?, ?, ?, ?, ?)
Hibernate: insert into RATES (standardPrice, upchargeExtraPerson, upchargeExtraBed, room, RATE_TYPE, id) values (?, ?, ?, ?, 'R', ?)
org.hibernate.PessimisticLockException: Timeout trying to lock table ; SQL statement:
insert into RATES (standardPrice, upchargeExtraPerson, upchargeExtraBed, room, RATE_TYPE, id) values (?, ?, ?, ?, 'R', ?) [50200-168]
at org.hibernate.dialect.H2Dialect$2.convert(H2Dialect.java:317)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:129)
at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81)
at $Proxy13.executeUpdate(Unknown Source)
at org.hibernate.engine.jdbc.batch.internal.NonBatchingBatch.addToBatch(NonBatchingBatch.java:56)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2962)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3403)
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:88)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:362)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:354)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:275)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1210)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:399)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175)
at net.mklew.hotelms.persistance.RatesPersistanceTest.should_save_rates_and_retrieve_them_with_success(RatesPersistanceTest.java:80)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:80)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:673)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:842)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1166)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
at org.testng.TestRunner.runWorkers(TestRunner.java:1178)
at org.testng.TestRunner.privateRun(TestRunner.java:757)
at org.testng.TestRunner.run(TestRunner.java:608)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
at org.testng.SuiteRunner.run(SuiteRunner.java:240)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1158)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1083)
at org.testng.TestNG.run(TestNG.java:999)
at org.testng.remote.RemoteTestNG.run(RemoteTestNG.java:111)
at org.testng.remote.RemoteTestNG.initAndRun(RemoteTestNG.java:203)
at org.testng.remote.RemoteTestNG.main(RemoteTestNG.java:174)
at org.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:111)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
Caused by: org.h2.jdbc.JdbcSQLException: Timeout trying to lock table ; SQL statement:
insert into RATES (standardPrice, upchargeExtraPerson, upchargeExtraBed, room, RATE_TYPE, id) values (?, ?, ?, ?, 'R', ?) [50200-168]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:329)
at org.h2.message.DbException.get(DbException.java:158)
at org.h2.command.Command.filterConcurrentUpdate(Command.java:276)
at org.h2.command.Command.executeUpdate(Command.java:232)
at org.h2.jdbc.JdbcPreparedStatement.executeUpdateInternal(JdbcPreparedStatement.java:156)
at org.h2.jdbc.JdbcPreparedStatement.executeUpdate(JdbcPreparedStatement.java:142)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:122)
... 47 more
Caused by: org.h2.jdbc.JdbcSQLException: Concurrent update in table "PRIMARY_KEY_4": another transaction has updated or deleted the same row [90131-168]
at org.h2.message.DbException.getJdbcSQLException(DbException.java:329)
at org.h2.message.DbException.get(DbException.java:169)
at org.h2.message.DbException.get(DbException.java:146)
at org.h2.table.RegularTable.addRow(RegularTable.java:146)
at org.h2.command.dml.Insert.insertRows(Insert.java:124)
at org.h2.command.dml.Insert.update(Insert.java:84)
at org.h2.command.CommandContainer.update(CommandContainer.java:75)
at org.h2.command.Command.executeUpdate(Command.java:230)
... 54 more
测试代码:
public class RatesPersistanceTest
{
protected SessionFactory sessionFactory;
protected HibernateSessionFactory hibernateSessionFactory;
@BeforeMethod
public void setUpHibernate() throws Exception
{
Logger logger = mock(Logger.class);
NativelyConfiguredHibernateSessionFactory hibernateSessionFactory = new
NativelyConfiguredHibernateSessionFactory(logger);
this.sessionFactory = hibernateSessionFactory.getSessionFactory();
this.hibernateSessionFactory = hibernateSessionFactory;
}
@AfterMethod
public void putItDown() throws Exception
{
sessionFactory.close();
}
@Test
public void should_save_rates_and_retrieve_them_with_success()
{
// given
Money standardPrice = Money.parse("USD 85");
Money upchargeExtraPerson = Money.parse("USD 80");
Money upchargeExtraBed = Money.parse("USD 75");
RoomType roomType = getMeRoomType();
Room room = getMeRoom(roomType);
AvailabilityPeriod availabilityPeriod = new AvailabilityPeriod(DateTime.now(), DateTime.now().plusDays(5),
true);
Season season = new BasicSeason("season name", availabilityPeriod);
Rate seasonRate = new SeasonRate(standardPrice, upchargeExtraPerson, upchargeExtraBed, room, season);
Session session = sessionFactory.openSession();
session.beginTransaction();
session.save(roomType);
// session.save(room);
session.getTransaction().commit();
session.close();
session = sessionFactory.openSession();
session.beginTransaction();
// session.save(roomType);
session.save(room);
session.getTransaction().commit();
session.close();
session = sessionFactory.openSession();
session.beginTransaction();
session.save(season);
session.save(seasonRate);
session.getTransaction().commit();
session.close();
// when
session = sessionFactory.openSession();
session.beginTransaction();
final List<Rate> list = session.createQuery("from Rate").list();
// then
assertThat(list).contains(seasonRate);
session.getTransaction().commit();
session.close();
}
@Test( expectedExceptions = org.hibernate.exception.ConstraintViolationException.class)
public void season_rate_should_violate_db_constraints_when_saved_without_season()
{
// given
Money standardPrice = Money.parse("USD 85");
Money upchargeExtraPerson = Money.parse("USD 80");
Money upchargeExtraBed = Money.parse("USD 75");
RoomType roomType = getMeRoomType();
final RoomName roomName = new RoomName("103");
final Money roomStandardPrice = Money.parse("USD 100");
final Money roomUpchargeExtraPerson = Money.parse("USD 50");
final Money roomUpchargeExtraBed = Money.parse("USD 20");
final RackRate rackRate = new RackRate(roomStandardPrice, roomUpchargeExtraPerson, roomUpchargeExtraBed, null);
final int maxExtraBeds = 2;
final Occupancy occupancy = new Occupancy(4, 2);
Room room = new Room("C", roomName, roomType, HousekeepingStatus.CLEAN, RoomAvailability.AVAILABLE,
maxExtraBeds, occupancy, standardPrice, upchargeExtraPerson, upchargeExtraBed);
AvailabilityPeriod availabilityPeriod = new AvailabilityPeriod(DateTime.now(), DateTime.now().plusDays(5),
true);
Season season = new BasicSeason("season name", availabilityPeriod);
Rate seasonRate = new SeasonRate(standardPrice, upchargeExtraPerson, upchargeExtraBed, room, null);
Session session = sessionFactory.openSession();
session.beginTransaction();
session.save(room);
// when
session.save(seasonRate);
session.getTransaction().commit();
session.close();
// then exception should be thrown
}
// @Test
// public void package_rate_should_violate_db_constraints_when_saved_without_package()
// {
//
// }
private RoomType getMeRoomType()
{
final RoomType roomType = new RoomType("cheap" + DateTime.now().toString());
return roomType;
}
private Room getMeRoom(RoomType roomType)
{
final RoomName roomName = new RoomName("101001" + DateTime.now().toString());
final Money standardPrice = Money.parse("USD 100");
final Money upchargeExtraPerson = Money.parse("USD 50");
final Money upchargeExtraBed = Money.parse("USD 20");
final RackRate rackRate = new RackRate(standardPrice, upchargeExtraPerson, upchargeExtraBed, null);
final int maxExtraBeds = 2;
final Occupancy occupancy = new Occupancy(4, 2);
return new Room("C", roomName, roomType, HousekeepingStatus.CLEAN, RoomAvailability.AVAILABLE, maxExtraBeds,
occupancy, standardPrice, upchargeExtraPerson, upchargeExtraBed);
}
}
休眠cfg:
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">org.h2.Driver</property>
<property name="connection.url">jdbc:h2:mem:db1;DB_CLOSE_DELAY=0;MVCC=true</property>
<property name="connection.username">sa</property>
<property name="connection.password"/>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.H2Dialect</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.internal.NoCachingRegionFactory</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<property name="hbm2ddl.auto">create-drop</property>
<!-- skipped mappings -->
</session-factory>
</hibernate-configuration>
我测试使用 Hibernate 的代码的首选方法是使用@BeforeMethod和@AfterMethod测试方法。我对 TestNg 没有任何经验，但我认为它处理这些函数的方式类似于 JUnit3.8.1 对 setUp() 和 TeaDown() 的处理方式，这就是我所使用的。
对我来说，关键点是单元测试执行的顺序并不重要。如果您使用@BeforeGroupand @AfterGroup，那么您拥有相同的SessionFactory实例，因此具有相同的数据库（无论是否在内存中），并且测试运行的任何变异操作都SessionFactory将影响后续执行读取操作的测试。这可能是需要的（尽管顺序可能必须是可预测的），在这种情况下，您实际上是在谈论单个“集成测试”，但对于您的情况，听起来您希望测试是独立的。
下一个问题是如何做到这一点。我所做的是将 Hibernate 配置为创建并连接到内存数据库，在其上运行创建模式脚本，并为每个测试方法创建一个 SessionFactory。
@Override
protected void setUp() throws Exception {
super.setUp();
String dialectClassName = HSQLDialect.class.getName();
AnnotationConfiguration config = new AnnotationConfiguration().addAnnotatedClass(DividendScheduleGeneratorImpl.class);
config.setProperty(Environment.DIALECT, dialectClassName);
config.setProperty(Environment.DRIVER, jdbcDriver.class.getName());
config.setProperty(Environment.URL, "jdbc:hsqldb:mem:testDB");
config.setProperty(Environment.USER, "SA");
config.setProperty(Environment.PASS, "");
SchemaExport export = new SchemaExport(config);
export.create(false, true);
sessions = config.buildSessionFactory();
}
@Override
protected void tearDown() throws Exception {
sessions.close();
sessions = null;
super.tearDown();
}
几点注意事项：
编辑：
根据您的错误堆栈跟踪和代码，以及测试独立运行的事实，我怀疑 PessimisticLockExceptions 是由针对同一数据库的不同线程上运行的测试引起的。甚至可能在 RATES 表上存在以数据库为中心的死锁。处理它的两个选项是让测试生成独立的数据库，或者告诉 TestNG 串行运行测试。
首先，您必须以编程方式编辑 Hibernate 连接字符串
jdbc:h2:mem:db1;DB_CLOSE_DELAY=0;MVCC=true
到
jdbc:h2:mem:<TESTNAME>;DB_CLOSE_DELAY=0;MVCC=true
或类似的。在 JUnit 中，我会使用 TestCase.getName ()，我假设 TestNG 中也有类似的可用功能。
另一种方法是串行运行。根据 TestNG 文档，应该可以通过注释类（而不是方法）添加 @Test(singleThreaded=true) 来序列化测试
@Test(singleThreaded=true)
public class RatesPersistanceTest
至少它应该是这样工作的，也许当你尝试它时你注释了该方法？
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