@Test
public void listForks() throws Exception {

    TestSubscriber<List<RepositoryInfo>> subscriber = TestSubscriber.create();
    repositoryDataSource.listForks("TellH", "GitClub", 1).subscribe(subscriber);
    List<RepositoryInfo> list = subscriber.getOnNextEvents().get(0);
    assertNotNull(list);
    for (RepositoryInfo repo : list) {
        System.out.println(repo.getOwner());
    }
}