}

    /**
     * Creates a result with no relevant documents found.
     *
     * @return evaluation result with no relevant documents
     */
    public static RelevanceEvaluationResult noRelevantResults() {
        return new RelevanceEvaluationResult(Collections.emptyList(), Collections.emptyList(), false);
    }

    /**
     * Creates a fallback result that includes all documents as relevant.

        assertTrue(result.getRelevantIndexes().isEmpty());
    }

    @Test
    public void test_noRelevantResults() {
        RelevanceEvaluationResult result = RelevanceEvaluationResult.noRelevantResults();

        assertFalse(result.isHasRelevantResults());
        assertNotNull(result.getRelevantDocIds());
        assertTrue(result.getRelevantDocIds().isEmpty());
        assertNotNull(result.getRelevantIndexes());

        try {
            final boolean hasRelevant = extractJsonBoolean(response, "has_relevant");
            if (!hasRelevant) {
                return RelevanceEvaluationResult.noRelevantResults();
            }

            final List<Integer> indexes = extractJsonIntArray(response, "relevant_indexes");
            final List<String> docIds = indexes.stream()