TweetRepository { void loadTweets(final List<Long> tweetIds, final Callback<List<Tweet>> cb) { final String commaSepIds = TextUtils.join(",", tweetIds); twitterCore.getApiClient().getStatusesService().lookup(commaSepIds, null, null, null) .enqueue(new MultiTweetsCallback(tweetIds, cb)); } TweetRepository(Handler mainHandler, SessionManager<TwitterSession> userSessionManagers);   TweetRepository(Handler mainHandler, SessionManager<TwitterSession> userSessionManagers,
            TwitterCore twitterCore);   }
@Test public void testLoadTweetsDelegation() { tweetRepository.loadTweets(anyIds, mock(Callback.class)); verify(mockStatusesService).lookup(anyId.toString(), null, null, null); }