assertEquals(10, result.getRelevantDocIds().size());
        assertEquals(10, result.getRelevantIndexes().size());
    }

    @Test
    public void test_docIds_withSpecialCharacters() {
        List<String> docIds = Arrays.asList("doc-with-dash", "doc_with_underscore", "doc.with.dot");
        List<Integer> indexes = Arrays.asList(1, 2, 3);