Поддержка тестирования Spring включает в себя очень полезные и важные функции для модульного и интеграционного тестирования приложений на основе Spring. Пакет org.springframework.test.context.testng предоставляет классы поддержки для тестовых случаев на основе TestNG. В этой статье показано, как тестировать компоненты уровня Spring Service с помощью интеграции Spring и TestNG. Также в следующей статье будет показано, как тестировать компоненты слоя Spring Data Access, используя ту же интеграцию.
Используемые технологии:
JDK 1.6.0_31
Весна 3.1.1
TestNG 6.4
Maven 3.0.2
ШАГ 1: СОЗДАТЬ MAVEN ПРОЕКТ
Maven проект создается следующим образом. (Его можно создать с помощью Maven или IDE Plug-in).
ШАГ 2: БИБЛИОТЕКИ
Spring-зависимости добавляются в pom.xml Maven.
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< properties > < spring.version >3.1.1.RELEASE</ spring.version > </ properties > < dependencies > <!-- Spring 3 dependencies --> < dependency > < groupId >org.springframework</ groupId > < artifactId >spring-core</ artifactId > < version >${spring.version}</ version > </ dependency > < dependency > < groupId >org.springframework</ groupId > < artifactId >spring-context</ artifactId > < version >${spring.version}</ version > </ dependency > < dependency > < groupId >org.springframework</ groupId > < artifactId >spring-test</ artifactId > < version >${spring.version}</ version > </ dependency > <!-- TestNG dependency --> < dependency > < groupId >org.testng</ groupId > < artifactId >testng</ artifactId > < version >6.4</ version > </ dependency > <!-- Log4j dependency --> < dependency > < groupId >log4j</ groupId > < artifactId >log4j</ artifactId > < version >1.2.16</ version > </ dependency > </ dependencies > |
ШАГ 3: СОЗДАЙТЕ ПОЛЬЗОВАТЕЛЬСКИЙ КЛАСС
Новый класс пользователя создан.
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package com.otv.user; /** * User Bean * * @author onlinetechvision.com * @since 19 May 2012 * @version 1.0.0 * */ public class User { private String id; private String name; private String surname; /** * Gets User Id * * @return String id */ public String getId() { return id; } /** * Sets User Id * * @param String id */ public void setId(String id) { this .id = id; } /** * Gets User Name * * @return String name */ public String getName() { return name; } /** * Sets User Name * * @param String name */ public void setName(String name) { this .name = name; } /** * Gets User Surname * * @return String Surname */ public String getSurname() { return surname; } /** * Sets User Surname * * @param String surname */ public void setSurname(String surname) { this .surname = surname; } @Override public String toString() { StringBuilder strBuilder = new StringBuilder(); strBuilder.append( "Id : " ).append(getId()); strBuilder.append( ", Name : " ).append(getName()); strBuilder.append( ", Surname : " ).append(getSurname()); return strBuilder.toString(); } @Override public int hashCode() { final int prime = 31 ; int result = 1 ; result = prime * result + ((id == null ) ? 0 : id.hashCode()); result = prime * result + ((name == null ) ? 0 : name.hashCode()); result = prime * result + ((surname == null ) ? 0 : surname.hashCode()); return result; } @Override public boolean equals(Object obj) { if ( this == obj) return true ; if (obj == null ) return false ; if (getClass() != obj.getClass()) return false ; User other = (User) obj; if (id == null ) { if (other.id != null ) return false ; } else if (!id.equals(other.id)) return false ; if (name == null ) { if (other.name != null ) return false ; } else if (!name.equals(other.name)) return false ; if (surname == null ) { if (other.surname != null ) return false ; } else if (!surname.equals(other.surname)) return false ; return true ; } } |
ШАГ 4: СОЗДАЙТЕ КЛАСС NonExistentUserException
Класс NonExistentUserException создан.
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package com.otv.common.exceptions; /** * Non Existent User Exception * * @author onlinetechvision.com * @since 19 May 2012 * @version 1.0.0 * */ public class NonExistentUserException extends Exception { private static final long serialVersionUID = 1L; public NonExistentUserException(String message) { super (message); } } |
ШАГ 5: СОЗДАЙТЕ ИНТЕРФЕЙС ICacheService
Интерфейс ICacheService, представляющий интерфейс службы кэширования, создан.
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package com.otv.cache.service; import java.util.concurrent.ConcurrentHashMap; import com.otv.user.User; /** * Cache Service Interface * * @author onlinetechvision.com * @since 19 May 2012 * @version 1.0.0 * */ public interface ICacheService { /** * Gets User Map * * @return ConcurrentHashMap User Map */ ConcurrentHashMap<String, User> getUserMap(); } |
ШАГ 6: СОЗДАЙТЕ CacheService CLASS
Класс CacheService создается путем реализации интерфейса ICacheService. Предоставляет доступ к удаленному кешу…
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package com.otv.cache.service; import java.util.concurrent.ConcurrentHashMap; import com.otv.user.User; /** * Cache Service Implementation * * @author onlinetechvision.com * @since 19 May 2012 * @version 1.0.0 * */ public class CacheService implements ICacheService { //User Map is injected... private ConcurrentHashMap<String, User> userMap; /** * Gets User Map * * @return ConcurrentHashMap User Map */ public ConcurrentHashMap<String, User> getUserMap() { return userMap; } /** * Sets User Map * * @param ConcurrentHashMap User Map */ public void setUserMap(ConcurrentHashMap<String, User> userMap) { this .userMap = userMap; } } |
ШАГ 7: СОЗДАЙТЕ ИНТЕРФЕЙС IUserService
Интерфейс IUserService, представляющий интерфейс службы пользователя, создан.
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package com.otv.user.service; import java.util.Collection; import com.otv.common.exceptions.NonExistentUserException; import com.otv.user.User; /** * * User Service Interface * * @author onlinetechvision.com * @since 19 May 2012 * @version 1.0.0 * */ public interface IUserService { /** * Adds User * * @param User user * @return boolean whether delete operation is success or not. */ boolean addUser(User user); /** * Deletes User * * @param User user * @return boolean whether delete operation is success or not. */ boolean deleteUser(User user); /** * Updates User * * @param User user * @throws NonExistentUserException */ void updateUser(User user) throws NonExistentUserException; /** * Gets User * * @param String User Id * @return User */ User getUserById(String id); /** * Gets User Collection * * @return List - User list */ Collection<User> getUsers(); } |
ШАГ 8: СОЗДАНИЕ КЛАССА UserService
Класс UserService создается путем реализации интерфейса IUserService.
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package com.otv.user.service; import java.util.Collection; import com.otv.cache.service.ICacheService; import com.otv.common.exceptions.NonExistentUserException; import com.otv.user.User; /** * * User Service * * @author onlinetechvision.com * @since 19 May 2012 * @version 1.0.0 * */ public class UserService implements IUserService { //CacheService is injected... private ICacheService cacheService; /** * Adds User * * @param User user * @return boolean whether delete operation is success or not. */ public boolean addUser(User user) { getCacheService().getUserMap().put(user.getId(), user); if (getCacheService().getUserMap().get(user.getId()).equals(user)) { return true ; } return false ; } /** * Deletes User * * @param User user * @return boolean whether delete operation is success or not. */ public boolean deleteUser(User user) { User removedUser = getCacheService().getUserMap().remove(user.getId()); if (removedUser != null ) { return true ; } return false ; } /** * Updates User * * @param User user * @throws NonExistentUserException */ public void updateUser(User user) throws NonExistentUserException { if (getCacheService().getUserMap().containsKey(user.getId())) { getCacheService().getUserMap().put(user.getId(), user); } else { throw new NonExistentUserException( "Non Existent User can not update! User : " +user); } } /** * Gets User * * @param String User Id * @return User */ public User getUserById(String id) { return getCacheService().getUserMap().get(id); } /** * Gets User List * * @return Collection - Collection of Users */ public Collection<User> getUsers() { return (Collection<User>) getCacheService().getUserMap().values(); } /** * Gets Cache Service * * @return ICacheService - Cache Service */ public ICacheService getCacheService() { return cacheService; } /** * Sets Cache Service * * @param ICacheService - Cache Service */ public void setCacheService(ICacheService cacheService) { this .cacheService = cacheService; } } |
ШАГ 9: СОЗДАНИЕ КЛАССА UserServiceTester
Класс User Service Tester создается путем расширения AbstractTestNGSpringContextTests.
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package com.otv.user.service.test; import junit.framework.Assert; import org.apache.log4j.Logger; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.test.context.ContextConfiguration; import org.springframework.test.context.testng.AbstractTestNGSpringContextTests; import org.testng.annotations.AfterClass; import org.testng.annotations.AfterMethod; import org.testng.annotations.AfterTest; import org.testng.annotations.BeforeClass; import org.testng.annotations.BeforeMethod; import org.testng.annotations.BeforeTest; import org.testng.annotations.Test; import com.otv.common.exceptions.NonExistentUserException; import com.otv.user.User; import com.otv.user.service.IUserService; /** * User Service Tester Class * * @author onlinetechvision.com * @since 19 May 2012 * @version 1.0.0 * */ @ContextConfiguration (locations={ "classpath:applicationContext.xml" }) public class UserServiceTester extends AbstractTestNGSpringContextTests { private static Logger logger = Logger.getLogger(UserServiceTester. class ); @Autowired private IUserService userService; private User firstUser; private User secondUser; private User thirdUser; /** * Creates Test Users * */ private void createUsers() { firstUser = new User(); firstUser.setId( "1" ); firstUser.setName( "Lionel" ); firstUser.setSurname( "Messi" ); secondUser = new User(); secondUser.setId( "2" ); secondUser.setName( "David" ); secondUser.setSurname( "Villa" ); thirdUser = new User(); thirdUser.setId( "3" ); thirdUser.setName( "Andres" ); thirdUser.setSurname( "Iniesta" ); } /** * Asserts that User Properties are not null. * * @param User */ private void assertNotNullUserProperties(User user) { Assert.assertNotNull( "User must not be null!" , user); Assert.assertNotNull( "Id must not be null!" , user.getId()); Assert.assertNotNull( "Name must not be null!" , user.getName()); Assert.assertNotNull( "Surname must not be null!" , user.getSurname()); } /** * The annotated method will be run before any test method belonging to the classes * inside the <test> tag is run. * */ @BeforeTest public void beforeTest() { logger.debug( "BeforeTest method is run..." ); } /** * The annotated method will be run before the first test method in the current class * is invoked. * */ @BeforeClass public void beforeClass() { logger.debug( "BeforeClass method is run..." ); createUsers(); } /** * The annotated method will be run before each test method. * */ @BeforeMethod public void beforeMethod() { logger.debug( "BeforeMethod method is run..." ); } /** * Tests the process of adding user * */ @Test public void addUser() { assertNotNullUserProperties(firstUser); Assert.assertTrue( "User can not be added! User : " + firstUser, getUserService().addUser(firstUser)); } /** * Tests the process of querying user * */ @Test public void getUserById() { User tempUser = getUserService().getUserById(firstUser.getId()); assertNotNullUserProperties(tempUser); Assert.assertEquals( "Id is wrong!" , "1" , tempUser.getId()); Assert.assertEquals( "Name is wrong!" , "Lionel" , tempUser.getName()); Assert.assertEquals( "Surname is wrong!" , "Messi" , tempUser.getSurname()); } /** * Tests the process of deleting user * */ @Test public void deleteUser() { assertNotNullUserProperties(secondUser); Assert.assertTrue( "User can not be added! User : " + secondUser, getUserService().addUser(secondUser)); Assert.assertTrue( "User can not be deleted! User : " + secondUser, getUserService().deleteUser(secondUser)); } /** * Tests the process of updating user * @throws NonExistentUserException * */ @Test (expectedExceptions = NonExistentUserException. class ) public void updateUser() throws NonExistentUserException { getUserService().updateUser(thirdUser); } /** * Test user count * */ @Test public void getUserCount() { Assert.assertEquals( 1 , getUserService().getUsers().size()); } /** * The annotated method will be run after all the test methods in the current class have been run. * */ @AfterClass public void afterClass() { logger.debug( "AfterClass method is run..." ); } /** * The annotated method will be run after all the test methods belonging to the classes inside the <test> tag have run. * */ @AfterTest public void afterTest() { logger.debug( "AfterTest method is run..." ); } /** * The annotated method will be run after each test method. * */ @AfterMethod public void afterMethod() { logger.debug( "AfterMethod method is run..." ); } /** * Gets User Service * * @return IUserService User Service */ public IUserService getUserService() { return userService; } /** * Sets User Service * * @param IUserService User Service */ public void setUserService(IUserService userService) { this .userService = userService; } } |
ШАГ 10: СОЗДАТЬ applicationContext.xml
Контекст приложения создается следующим образом:
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xsi:schemaLocation="http://www.springframework.org/schema/beans <!-- User Map Declaration --> < bean id = "UserMap" class = "java.util.concurrent.ConcurrentHashMap" /> <!-- Cache Service Declaration --> < bean id = "CacheService" class = "com.otv.cache.service.CacheService" > < property name = "userMap" ref = "UserMap" /> </ bean > <!-- User Service Declaration --> < bean id = "UserService" class = "com.otv.user.service.UserService" > < property name = "cacheService" ref = "CacheService" /> </ bean > </ beans > |
ШАГ 11: ЗАПУСК ПРОЕКТА
В этой статье был использован плагин TestNG Eclipse. Если вы используете Eclipse, его можно загрузить через страницу загрузки TestNG
Если UserServiceTester запущен, результаты тестов будут показаны следующим образом:
ШАГ 12: СКАЧАТЬ
РЕКОМЕНДАЦИИ :
Поддержка весеннего тестирования
TestNG Ссылка
Справка: поддержка весеннего тестирования с TestNG от нашего партнера по JCG Эрен Авсарогуллари в блоге Online Technology Vision .