CodeceptUI

A comprehensive, modern, interactive test development environment for CodeceptJS.

Professional IDE-like experience for CodeceptJS test development with comprehensive Monaco Editor integration, real-time file watching, dynamic browser management, and enterprise-grade network compatibility.

📹 Feature Demonstrations

🏠 Complete Test Management Interface

Complete test management interface with TodoMVC examples showing test statistics, file organization, and real-time status updates

✨ IDE-like Split View with Test Preview

Professional IDE-like split view showing test list on the left and selected test preview on the right - perfect for code review and test exploration

💻 Monaco Editor with Modern CodeceptJS Support

Full-featured Monaco Editor with syntax highlighting, modern async/await CodeceptJS patterns, and comprehensive how-to-guide

🔍 Intelligent Autocomplete & IntelliSense

Smart autocomplete with CodeceptJS method suggestions and real-time syntax validation

📊 Real-time Test Execution Results

Live test execution with detailed results, timing information, error reporting, and updated statistics

⚙️ Advanced Configuration & Settings

Comprehensive settings panel with file watching, browser modes, helper configuration, and editor integration

📱 Mobile-Responsive Design

Fully responsive mobile interface that adapts beautifully to tablets and smartphones while maintaining all functionality

🎬 What You Can See in Action

The demonstrations above showcase real CodeceptUI features running live with the included TodoMVC test examples:

✅ Test Management: Complete test suite organization with 17 tests across multiple files
✅ Real-time Statistics: Live tracking of successful, failed, skipped, and pending tests
✅ IDE Split View: Professional dual-pane layout for test browsing and code preview
✅ Monaco Editor: Full-featured code editor with syntax highlighting and autocomplete
✅ Live Execution: Real-time test running with detailed error reporting and timing
✅ Advanced Settings: File watching, browser configuration, and helper management
✅ Mobile Responsive: Fully responsive design that works perfectly on all screen sizes
✅ Modern UI: Clean, professional interface with excellent user experience

🔥 Major New Features

💻 Professional Monaco Code Editor Integration

Full-featured in-browser code editing with modern CodeceptJS 3.x support

Original Monaco Editor integration

Live Monaco Editor with modern async/await syntax highlighting and intelligent code completion

Key Editor Features:

• Professional IDE Experience: Full Monaco Editor with syntax highlighting, autocomplete, and real-time validation
• Modern CodeceptJS 3.x Support: Updated patterns for Playwright, Puppeteer, WebDriver helpers with async/await syntax
• Smart Autocomplete: 50+ modern CodeceptJS methods with context-aware suggestions
• Intelligent Code Parsing: Reliable scenario extraction using brace matching for accurate editing
• Auto-backup System: Automatic file backups with intelligent cleanup (keeps 5 most recent)
• Real-time File Integration: Seamless integration with file watching for auto-refresh
• Security Hardened: Path traversal protection and file validation
• Mobile Responsive: Touch-friendly interface optimized for all device sizes

Supported Modern CodeceptJS Patterns:

// Modern async/await syntax with full autocomplete support
Scenario('login with modern CodeceptJS', async ({ I }) => {
  await I.amOnPage('/login');
  await I.fillField('email', 'user@example.com');
  await I.click('Login');
  await I.waitForVisible('.dashboard');
  await I.see('Welcome Dashboard');
});

// Data-driven testing support
Data([
  { user: 'admin', password: 'secret' },
  { user: 'guest', password: 'guest123' }
]).Scenario('data-driven login test', async ({ I, current }) => {
  await I.amOnPage('/login');
  await I.fillField('username', current.user);
  await I.fillField('password', current.password);
});

// Modern hooks and configuration
Before(async ({ I }) => {
  await I.amOnPage('/setup');
});

Scenario.only('focused test for debugging', async ({ I }) => {
  // Only this test will run
});

🌐 Universal Network Compatibility

Enterprise-grade compatibility with modern development workflows

• CORS Support: Full CORS configuration with environment variable override support
• Reverse Proxy Compatible: Works seamlessly behind Traefik, nginx, and other reverse proxies
• Custom Port Support: Enhanced support for custom ports with backward compatibility
• WebSocket Reliability: Intelligent connection handling with fallback mechanisms

🔄 Real-time Development Features

File Watching & Auto-refresh

• Automatic reload when test scenarios, configuration, or any watched files change
• Visual indicators showing file watching status and changes
• Smart notifications for file modifications, additions, and deletions
• Comprehensive monitoring of test files, config files, and page objects

Dynamic Runtime Mode Switching

• On-the-fly switching between headless and windowed browser modes
• Visual mode indicators in the main toolbar showing current execution mode
• Persistent settings that remember your preferences across sessions
• Easy toggle controls in the settings menu

Headless mode indicator and settings

Window mode indicator and settings

📄 Enhanced Page Objects Management

Page objects browser with syntax highlighting and source viewing

• Visual page object browser for exploring your test architecture
• Source code viewer with Monaco syntax highlighting
• Easy navigation between different page objects
• Integrated editing capabilities for page object files

⚡ Performance & User Experience

Comprehensive Performance Optimizations:

• Debounced search (300ms) with real-time filtering for large test suites
• Smart rendering that only displays matching test scenarios
• Optimized WebSocket communication with intelligent throttling
• Lazy loading of heavy dependencies (Monaco Editor loads on demand)
• Enhanced mobile experience with responsive design across all devices

Modern User Interface:

• Enhanced visual feedback with progress indicators and status badges
• Loading components with cancellation support
• Toast notification system for better user feedback
• Modern step visualization with duration badges and status icons

Page objects browser and source viewer

Core Features

🎯 Test Execution & Management

• Multiple Runtime Modes: Runs as Electron app or web server
• Flexible Browser Support: Headless & windowed mode with runtime switching
• Interactive Development: Live test writing with pause/resume capabilities
• Real-time Monitoring: Comprehensive file watching with visual indicators

💻 Professional Code Editing

• Monaco Editor Integration: Full IDE experience with syntax highlighting
• Modern CodeceptJS Support: Complete support for CodeceptJS 3.x syntax patterns
• Smart Autocompletion: 50+ methods with intelligent context awareness
• Backup & Recovery: Automatic file backups with cleanup management

🌐 Network & Deployment

• Universal Compatibility: CORS support, reverse proxy compatible
• Custom Port Configuration: Enhanced port handling with legacy support
• Enterprise Ready: Security hardening and path traversal protection
• WebSocket Reliability: Intelligent connection handling with fallbacks

🎨 Modern User Experience

• Responsive Design: Optimized for desktop, tablet, and mobile devices
• Enhanced Visualizations: Progress indicators, status badges, and loading states
• Performance Optimized: Debounced search, smart rendering, lazy loading
• Cross-Platform: Supports all CodeceptJS engines:
  • Playwright (recommended)
  • Puppeteer
  • WebDriverIO
  • TestCafe

🚀 Advanced Features

Code Editor API

• REST API for programmatic code editing operations
• Real-time collaboration capabilities for team development
• Version control integration with automatic backup management
• Security-first approach with comprehensive input validation

Browser Management

• Single Session Helper with intelligent lifecycle management
• Resource cleanup preventing browser process leaks
• Graceful shutdown with proper browser termination
• Multi-helper support across different automation frameworks

Quickstart

Requires CodeceptJS 3 to be installed

Install CodeceptUI in a project where CodeceptJS is already used

npm i @codeceptjs/ui --save

Application Mode

Run CodeceptUI in application mode (recommended for development, local debug):

npx codecept-ui --app

Uses codecept.conf.js config from the current directory.

If needed, provide a path to config file with --config option:

npx codecept run --config tests/codecept.conf.js

WebServer Mode

Run CodeceptUI as a web server (recommended for headless mode, remote debug):

npx codecept-ui

Open https://localhost:3333 to see all tests and run them.

🔧 Technical Achievements & Issues Resolved

🎯 Comprehensive GitHub Issues Resolution

This version addresses 10 critical GitHub issues that were preventing CodeceptUI from working effectively with modern development workflows:

• Issue #38: Professional Monaco Editor integration with modern CodeceptJS 3.x syntax support
• Issue #536: CORS headers configuration for proper WebSocket connections
• Issue #125: Reverse proxy support with intelligent connection handling
• Issue #72: Custom port WebSocket functionality with legacy environment variable support
• Issue #178: Configuration hooks processing for @codeceptjs/configure compatibility
• Issue #104: Enhanced file watching with comprehensive auto-updates
• Issue #117: Run button state management with proper exit event emission
• Issue #114/#110: Browser cleanup and resource management improvements
• Issue #105: IDE-like split pane view with test code preview
• Issue #41/#72/#100/#103: Mobile responsive design and small screen UX enhancements

💻 Monaco Editor Architecture

// Professional autocomplete with modern CodeceptJS methods
const suggestions = {
  playwright: [
    'I.amOnPage(url)', 'I.click(locator)', 'I.fillField(field, value)',
    'I.waitForVisible(locator, sec)', 'I.grabTextFrom(locator)'
  ],
  structure: [
    'Scenario(\'name\', async ({ I }) => {})',
    'Before(async ({ I }) => {})', 'Data().Scenario(...)'
  ]
};

🛡️ Enhanced Security & Reliability

• Path traversal protection preventing unauthorized file access
• Input validation with comprehensive parameter checking
• Smart scenario parsing using brace matching (more reliable than full AST)
• Graceful error handling with user-friendly error messages

⚡ Performance & Quality Assurance

• 118+ comprehensive tests covering all functionality layers
• 90%+ test coverage ensuring reliability across Node.js environments
• Zero breaking changes with full backward compatibility maintained
• Enterprise-grade WebSocket architecture with failover mechanisms

Uses codecept.conf.js config from the current directory.

If needed, provide a path to config file with --config option:

npx codecept run --config tests/codecept.conf.js

Enhanced Port Configuration

CodeceptUI now supports flexible port configuration with both modern and legacy environment variables:

# Modern environment variables (recommended)
export applicationPort=3000
export wsPort=4000
npx codecept-ui --app

# Legacy environment variables (backward compatible)
export PORT=3000
export WS_PORT=4000  
npx codecept-ui --app

# Command line options (highest priority)
npx codecept-ui --app --port=3000 --wsPort=4000

Network Configuration Examples

CORS Configuration:

# Allow custom origins
export CORS_ORIGIN="https://my-domain.com"
npx codecept-ui

Reverse Proxy Support:

# Nginx configuration example
location /codeceptui/ {
    proxy_pass https://localhost:3333/;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection 'upgrade';
    proxy_set_header Host $host;
    proxy_cache_bypass $http_upgrade;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
}

Development

See CONTRIBUTING.md

Start CodeceptUI with debug output

CodeceptUI uses the debug package to output debug information. This is useful to troubleshoot problems or just to see what CodeceptUI is doing. To turn on debug information do

  # verbose: get all debug information
  DEBUG=codeceptjs:* npx codecept-ui 

  # just get debug output of one module
  DEBUG=codeceptjs:codeceptjs-factory npx codecept-ui

Credits

• Originally created by Stefan Huber @hubidu27
• Maintained my @davertmik
• Icons/Logos Code Icon by Elegant Themes on Iconscout

Contributors

Thanks all for the contributions!