QueryRescorerBuilder queryRescorerBuilder = (QueryRescorerBuilder) result;
        assertEquals(testWindowSize, queryRescorerBuilder.windowSize().intValue());
    }

    public void test_evaluate_withEmptyParams() {
        // Test with empty parameters map
        final String testModelName = "test_model";
        final int testWindowSize = 50;

        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {

                return null;
            }
        };

        assertNull(queryRescorer.evaluate(null));
    }

    public void test_evaluate_withEmptyParams() {
        // Test implementation that returns null for empty params
        queryRescorer = new QueryRescorer() {
            @Override
            public RescorerBuilder<?> evaluate(Map<String, Object> params) {