REST API Using Spring and Hibernate

4. TestNG

In this step we are going to add some database access code and use TestNG to test it.

1. Add the following dependencies:

• org.testng:testng
• org.springframework:spring-test

and set the scope of both dependencies to test.

2. Copy src/main/webapp/WEB-INF/applicationContext.xml to src/test/resources. This bean configuration file will be used by the testing code to initialize the Spring framework and create beans for data sources, entity manager, and so on.

3. Create a test class as follows and place it under src/test/java/springmvc/model/dao:

package springmvc.model.dao;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.testng.AbstractTransactionalTestNGSpringContextTests;
import org.testng.annotations.Test;

@Test(groups = "UserDaoTest")
@ContextConfiguration(locations = "classpath:applicationContext.xml")
public class UserDaoTest extends AbstractTransactionalTestNGSpringContextTests {

    @Autowired
    UserDao userDao;

    @Test
    public void getUser()
    {
        assert userDao.getUser( 1 ).getUsername().equalsIgnoreCase( "admin" );
    }

    @Test
    public void getUsers()
    {
        assert userDao.getUsers().size() == 2;
    }

}

In Eclipse, right click the class and select Run As -> TestNG Test. If you have created the database using springmvc-create.sql as described in the previous step, both tests should pass.