assertNotNull(results);
            assertEquals(0, results.size());
        }
    }

    /**
     * Test search with very large page size.
     */
    @Test
    public void test_searchWithLargePageSize() throws Exception {
        try (RankFusionProcessor processor = new RankFusionProcessor()) {
            processor.setSearcher(new TestSearcher(100));
            processor.init();