Question

I have a Spring web application and I want to make unittests for my controllers. I have decided not to use Spring to setup my tests but to use Mockito mock objects in conjunction with my controllers.

I build and run tests with Maven2 and the surefire plugin. This is from my pom.xml

        <!-- Test -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.framework.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.junit</groupId>
            <artifactId>com.springsource.org.junit</artifactId>
            <version>4.5.0</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-all</artifactId>
            <version>1.9.0-rc1</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
</dependencyManagement>

I setup my compiler and surefire plugins like this:

<build>
    <pluginManagement>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <verbose>true</verbose>
                    <compilerVersion>1.6</compilerVersion>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.4.3</version>
            </plugin>

My test class looks like this:

@RunWith(MockitoJUnitRunner.class)
public class EntityControllerTest {

private EntityController entityController;

private DataEntityType dataEntityType = new DataEntityTypeImpl("TestType");

@Mock
private HttpServletRequest httpServletRequest;

@Mock
private EntityFacade entityFacade;

@Mock
private DataEntityTypeFacade dataEntityTypeFacade;

@Before
public void setUp() {
    entityController = new EntityController(dataEntityTypeFacade, entityFacade);
}

@Test
public void testGetEntityById_IllegalEntityTypeName() {
    String wrong = "WROOONG!!";
    when(dataEntityTypeFacade.getEntityTypeFromTypeName(wrong)).thenReturn(null);
    ModelAndView mav = entityController.getEntityById(wrong, httpServletRequest);
    assertEquals("Wrong view returned in case of error", ".error", mav.getViewName());
}

Annotations all around 🙂

But when building from the commandline i get a NullPointerException in the line when(dataEntityTypeFacade.getEntityTypeFromTypeName(wrong)).thenReturn(null); as the dataEntityTypeFacade object is null. When I run my testcase in Eclipse all is well and my mock objects are instantiated and the method annotated with the @Before is called.

Why are my annotations seemingly ignored when running from the command line???

/Eva

Answer 1

Have you called:

 MockitoAnnotations.initMocks(testClass);

in the base class or a test runner as mention here: http://docs.mockito.googlecode.com/hg/org/mockito/Mockito.html#9