* @throws Exception
     */
    @Test
    public void testFatal() throws Exception {
        logger.fatal("fatal");
    }

    /**
     * @throws Exception
     */
    @Test
    public void testLog() throws Exception {
        logger.log("ILOGTEST0001");
    }

    /**
     * @throws Exception
     */
    @Test
    public void testLogWithArgs() throws Exception {

    private MultiChannelManager multiChannelManager;
    private Configuration config;

    @BeforeEach
    void setUp() throws Exception {
        // Create a basic configuration for testing
        this.config = new BaseConfiguration(true);
        this.multiChannelManager = new MultiChannelManager(config);
    }

    @Test
    @DisplayName("MultiChannelManager should initialize successfully")

import org.dbflute.utflute.core.PlainTestCase;

/**
 * Test class for AbstractExtractor base functionality.
 * Focuses on testing the validateInputStream() method and other common functionality.
 */
public class AbstractExtractorTest extends PlainTestCase {

    /**
     * Concrete test implementation of AbstractExtractor for testing purposes.
     */
    private static class TestExtractor extends AbstractExtractor {

    // A concrete implementation of the abstract class SmbComNtTransaction for testing.
    private static class ConcreteSmbComNtTransaction extends SmbComNtTransaction {
        @Override
        int writeSetupWireFormat(byte[] dst, int dstIndex) {
            // Dummy implementation for testing
            return 0;
        }

        @Override

# This workflow will build a Java project with Maven
# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven

name: Java CI with Maven

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4
    - name: Set up JDK 17

        verify(smbTree).close();
        verify(customTree).close();
    }

    /**
     * Custom SmbTree interface for testing unwrap functionality.
     */
    interface CustomSmbTree extends SmbTree {
        void customMethod();
    }

    /**
     * Extended SmbTree interface for testing nested unwrapping.
     */
    interface ExtendedSmbTree extends SmbTree {
        void extendedMethod();
    }

---
title: Sample Markdown Document
author: John Doe
date: 2025-01-15
tags:
  - crawler
  - extractor
  - markdown
---

# Introduction

This is a sample Markdown document for testing the MarkdownExtractor.

## Features

The extractor should handle:

- YAML front matter extraction
- Heading structure
- **Bold text** and *italic text*
- Lists and other formatting

### Code Examples

{
  "title": "Sample Document",
  "author": "John Doe",
  "version": "1.0",
  "published": "2025-01-15",
  "tags": ["crawler", "extractor", "json"],
  "content": {
    "summary": "This is a sample JSON document for testing",
    "body": "The extractor should handle nested objects and arrays properly"
  },
  "metadata": {
    "created_at": "2025-01-01T00:00:00Z",
    "updated_at": "2025-01-15T12:00:00Z"
  }

# This workflow will build a Java project with Maven
# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven

name: Java CI with Maven

on:
  push:
    branches:
    - master
    - "*.x"
  pull_request:
    branches:
    - master
    - "*.x"

jobs:
  build:
    runs-on: ${{ matrix.os }}

    strategy:
      matrix:

**Technology Stack:**
- Java 21+, Maven
- OpenSearch (provided dependency)
- Apache Lucene (query parsing, text analysis)
- ICU4J (Unicode text processing)
- JUnit 4 (testing)

**Repository:** https://github.com/codelibs/fess-suggest

---

## Architecture

### Package Structure

```
org.codelibs.fess.suggest/
├── Suggester.java              # Main entry point (Facade)