Introducing Spring Framework

Chapter 2 ■ Working with Classes and Dependencies
}
@Test
public void testWithSpringListAll() {
List documents = engine.listAll();
assertNotNull(documents);
assertTrue(documents.size() == 4);
}
As you can see in Listing 2-8, you are using a ClassPathXmlApplicationContext class that will use your
configuration file (see Listing 2-7); it will get the instance of the bean when you use the context.getBean method.
The Spring Framework will automatically know what bean ID you are referring to because of its type. In this
example, it will know that when you call context.getBean(SearchEngine.class) it will get your MySearchEngine
implementation and so on for the Type class.
Next, let’s run the test using the following command:
gradle run –Dtest.single=MyDocumentsWithSpringTest test
■ ■Note Remember that you can run the gradle command from the project base directory and execute the command
gradle run –Dtest.single=MyDocumentsWithSpringTest :ch02:test.
The following output shows the result of running your unit test:
:ch02:compileJava
:ch02:compileGroovy
:ch02:processResources UP-TO-DATE
:ch02:classes
:ch02:compileTestJava
:ch02:compileTestGroovy
:ch02:processTestResources
:ch02:testClasses
:ch02:test
com.apress.isf.spring.test.MyDocumentsWithSpringTest > testWithSpringFindByType STARTED
com.apress.isf.spring.test.MyDocumentsWithSpringTest > testWithSpringFindByType PASSED
com.apress.isf.spring.test.MyDocumentsWithSpringTest > testWithSpringListAll STARTED
com.apress.isf.spring.test.MyDocumentsWithSpringTest > testWithSpringListAll PASSED
BUILD SUCCESSFUL
Total time: 11.33 secs
Spring Framework and Dependency Injection
The Spring Framework offers many features, and one of the most used is the dependency injection pattern. The
Spring Framework offers this feature as a container that helps to manage your classes though a life cycle that can be
used by other objects (also called managed beans) and for other services (see Figure 2-3).
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