Mockito異常：我的推理在哪裏不正確？

Question

我正在Eclipse Mars 2.0中使用Mockito（1.10.19）進行Java EE測試以測試脫機版本庫。該類依賴InitialData類來檢索信息。

我的第一個任務是將一個地址添加到initialData列表。這裏是進口類和旁邊的方法：

import org.junit.Test; 
import org.junit.runner.RunWith; 
import org.mockito.Mockito; 
import org.mockito.runners.MockitoJUnitRunner; 

import com.qa.smurf.InitialData; 
import com.qa.smurf.entities.Address; 
import com.qa.smurf.repositories.offline.AddressRepositoryOffline; 

import junit.framework.TestCase; 
@RunWith(MockitoJUnitRunner.class) 
public class AddressRepositoryOfflineTest extends TestCase { 
    @Test 
    public void testPersistAddress() { 
     Address newAddress = new Address("a", "a"); 
     ArrayList<Address> addList = new ArrayList<Address>(); 
     addList.add(newAddress); 

     AddressRepositoryOffline aro = Mockito.mock(AddressRepositoryOffline.class); 
     InitialData initialData = Mockito.mock(InitialData.class); 
     Mockito.when(initialData.getAddresses()).thenReturn(addList); 
     assertEquals(newAddress, aro.getAddresses().get(0)); 
    } 
} 

這應該叫AddressRepositoryOffline類getAddresses（）方法，隨後調用InitialData類的getAddresses（）方法，並返回addList的ArrayList。

public class AddressRepositoryOffline implements AddressRepository { 
    @Override 
    public ArrayList<Address> getAddresses() { 
     return initialData.getAddresses(); 
    } 
} 

public class InitialData { 
    public ArrayList<Address> getAddresses() { 
     return this.addresses; 
    } 
} 

我再碰上以下錯誤：

java.lang.IndexOutOfBoundsException: Index: 0, Size: 0 
at java.util.ArrayList.rangecheck(ArrayList.java:653) 
at java.util.ArrayList.get(ArrayList.java:429) 
at OfflineRepository.AddressRepositoryOfflineTest.testPersistAddress(AddressRepositoryTest.java:37) 

37號線的問題是

assertEquals(newAddress, aro.getAddresses().get(0)); 

一些更多的錯誤做JUnit和MockitoJUnitandHigherRunnerImpl

顯然，我我誤解了如何在這裏正確實施Mockito。有人能幫我嗎？

非常感謝，

Answer 1

你嘲笑沒有注入測試類AddressRepositoryOffline

試試這個：

@RunWith(MockitoJUnitRunner.class) 
public class AddressRepositoryOfflineTest extends TestCase { 

@Mock 
private InitialData initialData; 

@InjectMocks 
private AddressRepositoryOffline aro; 

@Test 
public void testPersistAddress() { 
    Address newAddress = new Address("a", "a"); 
    ArrayList<Address> addList = new ArrayList<Address>(); 
    addList.add(newAddress); 

    Mockito.when(initialData.getAddresses()).thenReturn(addList); 
    assertEquals(newAddress, aro.getAddresses().get(0)); 
} 
}