public void test_constructor() {
        Map<String, Object> parentMap = new HashMap<>();
        DocMap docMap = new DocMap(parentMap);

        assertNotNull(docMap);
        assertTrue(docMap.isEmpty());
        assertEquals(0, docMap.size());
    }

    public void test_basic_operations() {
        Map<String, Object> parentMap = new HashMap<>();
        DocMap docMap = new DocMap(parentMap);

        assertNull(sentIndex.get());

        sentIndex.set(null);
        sentDocList.clear();
        docList.add(new HashMap<>(Map.of(//
                "_id", "001", //
                "config_id", "W01", //
                "url", "http://test.com/001"//
        )));
        docList.add(new HashMap<>(Map.of(//
                "_id", "002", //
                "thumbnail", "http://test.com/002", //

        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);

    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, Object> params = new HashMap<>();
        params.put("string_param", "test_value");
        params.put("int_param", 42);
        params.put("double_param", 3.14);
        params.put("boolean_param", true);

        Map<String, String> nestedMap = new HashMap<>();
        nestedMap.put("nested_key", "nested_value");
        params.put("nested_param", nestedMap);

        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");

        // Test with supported document type
        Map<String, Object> docMap = new HashMap<>();
        docMap.put("mimetype", "application/pdf");
        assertTrue(thumbnailGenerator.isTarget(docMap));
    }

    public void test_isTarget_withUnsupportedMimeType() {
        // Test with unsupported document type
        Map<String, Object> docMap = new HashMap<>();
        docMap.put("mimetype", "application/unknown");

import java.util.ArrayList;
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;

public class DocumentUtilTest extends UnitFessTestCase {

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

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

    }

    public void test_builder_withDocuments() {
        // Test builder with adding documents
        Map<String, Object> doc1 = new HashMap<>();
        doc1.put("id", "1");
        doc1.put("title", "Document 1");

        Map<String, Object> doc2 = new HashMap<>();
        doc2.put("id", "2");
        doc2.put("title", "Document 2");

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

        languageHelper.updateDocument(doc);

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

    public void test_updateDocument_skipExistingLangFields() {
        Map<String, Object> doc = new HashMap<>();
        doc.put("lang", "ja");
        doc.put("title", "タイトル");