org.mockito

Class MockitoAnnotations

java.lang.Object

org.mockito.MockitoAnnotations

public class MockitoAnnotations
extends Object

MockitoAnnotations.initMocks(this); initializes fields annotated with Mockito annotations. See also MockitoSession which not only initializes mocks but also adds extra validation for cleaner tests!

• Allows shorthand creation of objects required for testing.
• Minimizes repetitive mock creation code.
• Makes the test class more readable.
• Makes the verification error easier to read because field name is used to identify the mock.

   public class ArticleManagerTest extends SampleBaseTestCase { 
     
       @Mock private ArticleCalculator calculator;
       @Mock private ArticleDatabase database;
       @Mock private UserProvider userProvider;
     
       private ArticleManager manager;
     
       @Before public void setup() {
           manager = new ArticleManager(userProvider, database, calculator);
       }
   }
   
   public class SampleBaseTestCase {
   
       @Before public void initMocks() {
           MockitoAnnotations.initMocks(this);
       }
   }
 

Read also about other annotations @Spy, @Captor, @InjectMocks

MockitoAnnotations.initMocks(this) method has to called to initialize annotated fields.

In above example, initMocks() is called in @Before (JUnit4) method of test's base class. For JUnit3 initMocks() can go to setup() method of a base class. You can also put initMocks() in your JUnit runner (@RunWith) or use built-in runner: MockitoJUnitRunner

Constructor Summary

Constructors

Constructor and Description
MockitoAnnotations()

Method Summary

Methods

Modifier and Type	Method and Description
static void	initMocks(Object testClass) Initializes objects annotated with Mockito annotations for given testClass: @Mock, @Spy, @Captor, @InjectMocks

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MockitoAnnotations

public MockitoAnnotations()

Method Detail

initMocks

public static void initMocks(Object testClass)

Initializes objects annotated with Mockito annotations for given testClass: @Mock, @Spy, @Captor, @InjectMocks

See examples in javadoc for MockitoAnnotations class.