Introducing Spring Framework

Chapter 7
Testing Your Spring Application
In this chapter, you are going to start using the Spring Framework Features. So far in previous chapters, you have been
using the JUnit test framework, which is fine if you want to do simple testing. Previously, every time you needed to
declare the application context’s implementation like the ClassPathXmlApplicationContext class. You did this by
calling context = new ClassPathXmlApplicationContext("META-INF/spring/mydocuments-context.xml") to load
your XML configuration file in order to use the Spring container.
The Spring Framework Test library provides some features like unit testing by using JUnit or TestNG test,
and integration testing. You can use mock objects based on environment, JNDI, Servlet, and Portlet APIs. For the
integration testing, the Spring Framework provides a caching mechanism between test executions and transaction
management, normally the latter regarding JDBC connections.
From now on, your tests for each chapter will be using the integration testing features from the Spring Test
library. The primary goals are to support the use of the ApplicationContext class so that when your tests start
you always have access to the container’s beans. Also, this provides the use of dependency injection by using an
annotation like @Autowired.
Testing with Annotations
You are going to start with annotations, which is one of the common uses of the Spring Test fixtures. So far you have
been using the @Autowired annotation, but now you use the application context call. So, let’s modify your classes to
use the testing annotations with no modification of the XML configuration (as shown in Listing 7-1).
Listing 7-1. MyDocumentsTest.java
package com.apress.isf.spring.test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
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