@Override
    public void itemDelete(String itemType, String itemId) {
    }
@Test
    public void itemDelete() {
        mSensorsAPI.setTrackEventCallBack(new SensorsDataTrackEventCallBack() {
            @Override
            public boolean onTrackEvent(String eventName, JSONObject eventProperties) {
                Assert.fail();
                return false;
            }
        });
        mSensorsAPI.itemDelete("item", "123");
    }