final Map<String, Object> params = new HashMap<>();
        params.put("test", "value");
        assertNull(groovyEngine.evaluate(null, params));
    }

    /**
     * Test that evaluate returns null for empty string template
     */
    @Test
    public void test_evaluate_emptyTemplate() {
        final Map<String, Object> params = new HashMap<>();
        params.put("test", "value");

    public void test_evaluate_withNestedExpressions() {
        String template = "${level1.level2.value}";
        Map<String, Object> paramMap = new HashMap<>();
        Map<String, Object> level2 = new HashMap<>();
        level2.put("value", "nested");
        Map<String, Object> level1 = new HashMap<>();
        level1.put("level2", level2);
        paramMap.put("level1", level1);

        Map<String, String> andParams = new HashMap<>();
        andParams.put("q", query.replace("OR", "AND"));
        String andResponse = checkMethodBase(new HashMap<>()).params(andParams).get("/api/v1/documents").asString();
        int andRecordCount = JsonPath.from(andResponse).getInt("record_count");

        Map<String, String> params = new HashMap<>();
        params.put("q", query);

        final Map<String, Object> attributes = new HashMap<>();

        authenticator.parseJwtClaim(jwtClaim, attributes);

        assertEquals(95.5, attributes.get("score"));
    }

    @Test
    public void test_parseJwtClaim_emptyObject() throws IOException {
        final String jwtClaim = "{}";
        final Map<String, Object> attributes = new HashMap<>();

        map.put("data1", 1);
        assertEquals(100.0f, docBoostMatcher.getValue(map));
    }

    @Test
    public void test_getValue_numericStringReturn() {
        final DocBoostMatcher docBoostMatcher = new DocBoostMatcher();
        docBoostMatcher.setBoostExpression("'3.14'");

        final Map<String, Object> map = new HashMap<String, Object>();

import java.util.Arrays;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.codelibs.fess.unit.UnitFessTestCase;
import org.junit.jupiter.api.Test;

public class DocumentUtilTest extends UnitFessTestCase {

    @Test
    public void test_string() {
        Map<String, Object> doc = new HashMap<>();

        String expected = "1";
        doc.put("key1", expected);

        Map<String, Object> nestedParams = new HashMap<>();
        Map<String, Object> innerMap = new HashMap<>();
        innerMap.put("innerKey", "innerValue");
        nestedParams.put("nested", innerMap);

        assertNotNull(queryRescorer.evaluate(nestedParams));

        // Test without nested parameters
        Map<String, Object> flatParams = new HashMap<>();
        flatParams.put("flat", "value");

    }

    @Override
    protected Map<String, Object> createTestParam(int id) {
        // Not used for this test
        return new HashMap<>();
    }

    @Override
    protected Map<String, Object> getUpdateMap() {
        // Not used for this test
        return new HashMap<>();
    }

    @Override
    @AfterEach
    protected void tearDown() {
        // Custom teardown in tearDownAll
    }

        Map<String, Object> doc = new HashMap<>();

        languageHelper.updateDocument(doc);

        // Should not add any language fields
        assertNull(doc.get("lang"));
        assertEquals(0, doc.size());
    }

    @Test
    public void test_updateDocument_skipExistingLangFields() {
        Map<String, Object> doc = new HashMap<>();
        doc.put("lang", "ja");

        Map<String, Object> dataMap1 = new HashMap<>();
        dataMap1.put("url", "http://example.com/test1");
        indexUpdateCallback.store(paramMap, dataMap1);
        assertEquals(1, indexingHelper.sendDocumentsCalled);

        // Add second document - should trigger indexing again
        Map<String, Object> dataMap2 = new HashMap<>();
        dataMap2.put("url", "http://example.com/test2");