使用PowerMockito测试JavaEWSAPI中的Pull订阅
我有一个函数,用于处理通过对Microsoft Exchange的PullSubscription获得的事件使用PowerMockito测试JavaEWSAPI中的Pull订阅,java,mocking,exchange-server,exchangewebservices,ewsjavaapi,Java,Mocking,Exchange Server,Exchangewebservices,Ewsjavaapi,我有一个函数,用于处理通过对Microsoft Exchange的PullSubscription获得的事件 public void processEvents(ExchangeService service, PullSubscription subscription) throws Exception { GetEventsResults events = subscription.getEvents(); // Loop through all it
public void processEvents(ExchangeService service, PullSubscription subscription)
throws Exception {
GetEventsResults events = subscription.getEvents();
// Loop through all item-related events.
for (ItemEvent itemEvent : events.getItemEvents()) {
if (itemEvent.getEventType() == EventType.NewMail) {
EmailMessage message = EmailMessage.bind(service, itemEvent.getItemId());
EmailParser emailParser = new EmailParser();
emailParser.parse(message, service);
}
}
}
我尝试使用PowerMockito测试它,因为ExchangeService是最后一个类。
因此,我对ExchangeService和PullSubscription进行了如下模拟:
ExchangeService serviceMock = PowerMockito.mock(ExchangeService.class);
PullSubscription subscriptionMock = PowerMockito.mock(PullSubscription.class);
@Test
public void startPullNotification() throws Exception {
ProcessEmails pr = new ProcessEmails("config.properties");
pr.startPullNotification(serviceMock);
}
当我尝试使用以下代码测试它时,它会抛出一个NullPointerException,因为subscription.getEvents返回null,即subscriptionMock中没有事件
我试图通过模拟必须返回的eventResults来删除它:
when(subscriptionMock.getEvents()).thenReturn(eventResultsMock);
它不起作用,因为测试函数中没有调用getEvents。我想知道如何测试这个函数
解决方案:
我必须模拟函数中创建的每个对象。
另外,我必须在类声明上面添加以下内容
@RunWith(PowerMockRunner.class)
@PrepareForTest({ ClassBeingTested.class })