  @Test
  public void initializeTest() {


    callstatslib.initialize(appId, appSecret, "jit.si.345", serverInfo, listener);
    try {
      Thread.sleep(5000);
    } catch (InterruptedException e) {
      e.printStackTrace();
    }
    String msg = "SDK authentication successful";
    Mockito.verify(listener).onInitialized(msg);
  }