assertEquals(-1L, model.previousNews(true, -1L));
assertEquals(-1L, model.nextNews(false, 5L));
assertEquals(-1L, model.previousNews(false, 5L));
assertEquals(-1L, model.nextNews(true, 5L));
assertEquals(-1L, model.previousNews(true, 5L));
assertEquals(-1L, model.removeNews(fFactory.createNews(5L, fFactory.createFeed(null, URI.create("rssowl.org")), new Date())));
assertEquals(0, model.getNewsCount());
assertEquals(0, model.getVisibleNewsCount());
assertEquals(-1L, model.getLastVisibleNews());
assertFalse(model.hasHiddenNews());
assertTrue(model.getVisibleUnreadNews().isEmpty());