How to write JUnit test with Spring Autowire?
java, junit4, playframework-2.0, spring
Solution
Make sure you have imported the correct package. If I remeber correctly there are two different packages for Autowiring. Should be :`org.springframework.beans.factory.annotation.Autowired;`
Also this looks wierd to me :
@ContextConfiguration("classpath*:conf/components.xml")
Here is an example that works fine for me :
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "/applicationContext_mock.xml" })
public class OwnerIntegrationTest {
@Autowired
OwnerService ownerService;
@Before
public void setup() {
ownerService.cleanList();
}
@Test
public void testOwners() {
Owner owner = new Owner("Bengt", "Karlsson", "Ankavägen 3");
owner = ownerService.createOwner(owner);
assertEquals("Check firstName : ", "Bengt", owner.getFirstName());
assertTrue("Check that Id exist: ", owner.getId() > 0);
owner.setLastName("Larsson");
ownerService.updateOwner(owner);
owner = ownerService.getOwner(owner.getId());
assertEquals("Name is changed", "Larsson", owner.getLastName());
}
Problem
Here are the files that I use: component.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:context="http://www.springframework.org/schema/context" xmlns:jee="http://www.springframework.org/schema/jee" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.0.xsd"> <context:component-scan base-package="controllers,services,dao,org.springframework.jndi" /> </beans> ``` ServiceImpl.java ``` @org.springframework.stereotype.Service public class ServiceImpl implements MyService { @Autowired private MyDAO myDAO; public void getData() {...} } ``` ServiceImplTest.java ``` @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration("classpath*:conf/components.xml") public class ServiceImplTest{ @Test public void testMyFunction() {...} } ``` Error: ``` 16:22:48.753 [main] ERROR o.s.test.context.TestContextManager - Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@2092dcdb] to prepare test instance [services.ServiceImplTest@9e1be92] org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'services.ServiceImplTest': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private services.ServiceImpl services.ServiceImplTest.publishedServiceImpl; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No matching bean of type [services.ServiceImpl] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:287) ~[spring-beans.jar:3.1.2.RELEASE] ```