java - 如何正确测试此方法？(junit)

Question

我有这个方法:

@Transactional
@Service("vacancyService")
public class VacancyService {

   public boolean delete(Integer id) {
        Vacancy vacancy = vacancyDao.findById(id);
        return vacancy != null && vacancyDao.remove(vacancy);
    }
  ...
}

我想测试上面的方法。

实现vacancyDao.remove(vacancy):

  public boolean remove(Vacancy vacancy) throws HibernateException {
            Session session = sessionFactory.getCurrentSession();
            if (vacancy == null) {
                return false;
            }

            int result = session.createQuery("delete from Vacancy where id = :id")
                    .setInteger("id", vacancy.getId()).executeUpdate();
            return result > 0;

        }

我的测试类:

@TransactionConfiguration(defaultRollback = false)
@ContextConfiguration(locations = { "classpath:/test/BeanConfig.xml" })
public class VacancyServiceTest extends AbstractTransactionalJUnit4SpringContextTests{

    @Test
    public void testDeleteMethod(){
        //what I can write here?
    }

我不知道如何测试这个方法。你能帮帮我吗？

更新

在这里添加我的配置文件:

BeanConfig.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jee="http://www.springframework.org/schema/jee" xmlns:lang="http://www.springframework.org/schema/lang"
    xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
        http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

    <!-- Включаем опцию использования конфигурационных аннотаций (@Annotation-based configuration)-->
    <context:annotation-config />


    <context:component-scan base-package="com.epam.hhsystem.jpa" />
    <context:component-scan base-package="com.epam.hhsystem.services" />

    <!-- Файл с настройками ресурсов для работы с данными (Data Access Resources) -->
    <import resource="data.xml" />

</beans>

数据.xml:

<?xml  version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:jee="http://www.springframework.org/schema/jee" xmlns:lang="http://www.springframework.org/schema/lang"
    xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
        http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
        http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">

<!-- Настраивает управление транзакциями с помощью аннотации @Transactional -->
    <tx:annotation-driven transaction-manager="transactionManager" />

    <!-- Менеджер транзакций -->
    <bean id="transactionManager"
        class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>

    <!-- Непосредственно бин dataSource -->
    <bean id="dataSource"
        class="org.springframework.jdbc.datasource.DriverManagerDataSource"
        p:driverClassName="com.microsoft.sqlserver.jdbc.SQLServerDriver"
        p:url="jdbc:sqlserver://10.16.9.52:1433;databaseName=hhsystemTest;"
        p:username="userNew" 
        p:password="Pass12345" />

    <!-- Настройки фабрики сессий Хибернейта -->
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="configLocation">
            <value>classpath:test/hibernate.cfg.xml</value>
        </property>

        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</prop>
                <prop key="hibernate.connection.charSet">UTF-8</prop>
<!--                <prop key="hibernate.hbm2ddl.auto">create-drop</prop> -->
        </props>
        </property>
    </bean>

</beans>

如果您需要更多详细信息，我会在此处发布。

Answer 1

由于提供了服务类单元测试，下面是对 Dao 类 remove 方法进行单元测试的方法

public class vacancyDaoTest {

@InjectMocks
VacancyDao vacancyDao = new VacancyDao();

@Mock
Session session;

@Mock
Query query;

@Mock
SessionFactory sessionFactory;

@BeforeClass
public void setup(){
    MockitoAnnotations.initMocks(this);
    when(sessionFactory.getSession()).thenReturn(session);
}



@Test
public void testRemove(){
    String hql = "delete from Vacancy where id = :id";
    when(session.createQuery(hql)).thenReturn(query);
    when(query.setInteger(eq("id"), anyInt())).thenReturn(query);
    when(query.executeUpdate).thenReturn(1);
    int result = vacancyDao.remove(new Vacancy());
    verify(session).createQuery(any(String.class));
    verify(query).setInteger(eq("id"), anyInt());
    verify(query).executeUpdate();
    assertNotNull(result);
    assertTure(result);


}



}