我有一个读取的JUnit测试
public class EventHandlerTest {
@Mock
ThreadPoolExtendedExecutor threadPoolExtendedExecutor;
private EventHandler handler;
private Map<Queue<SenderTask>> subBuffers = new HashMap<>();
@Before
public void setUp() {
// PROBLEM: threadPoolExtendedExecutor null!
handler = new EventHandler(subBuffers, threadPoolExtendedExecutor);
}
}
当我在setUp中打电话给我时,我有threadPoolExtendedExecutor=null
。
我想插入一些模拟的threadPoolExtendedExecutor
,因此,在调用其方法时没有NullPointer
问题(因此,现在简单的接口模拟就足够了)
答案 0 :(得分:2)
您可以简单地使用(在setUp中)对其进行模拟
threadPoolExtendedExecutor =模拟(ThreadPoolExtendedExecutor.class);
@Before
public void setUp() {
threadPoolExtendedExecutor = mock(ThreadPoolExtendedExecutor.class);
handler = new EventHandler(subBuffers, threadPoolExtendedExecutor);
}
您还可以让MockitoJUnitRunner为您做到这一点: 不要忘记通过使用@InjectMocks对其进行注释将模拟注入到正在测试的服务中
@RunWith(MockitoJUnitRunner.class)
public class EventHandlerTest {
@Mock
ThreadPoolExtendedExecutor threadPoolExtendedExecutor;
答案 1 :(得分:1)
如果您想在测试课程字段中使用@Mock
或@InjectMocks
批注,则需要在课程级别添加@RunWith(MockitoJUnitRunner.class)
。
@RunWith(MockitoJUnitRunner.class)
public class EventHandlerTest {
@Mock
ThreadPoolExtendedExecutor threadPoolExtendedExecutor;
另一种方法是不使用上述注释,而是通过调用org.mockito.Mockito.mock()
手动创建模拟。