feat: beta : PR Testing Tab: Streamlined Pull Request Testing Environment : beta

[Stijnus]

PR Testing Tab: Streamlined Pull Request Testing Environment

This PR introduces a comprehensive PR Testing tab in the settings panel that enables developers to test pull requests directly from the GitHub repository without leaving the application. The feature provides a complete workflow from PR discovery to local testing with minimal setup.

Key Features

• Integrated GitHub PR Browser: Browse, search, and filter open and closed pull requests with real-time data
• Detailed PR Information: View comprehensive PR details including description, commits, changed files, and metadata
• One-Click Testing: Clone and test PRs in an isolated local development environment with a single click
• Automatic Server Management: Access running test servers through automatically assigned ports with URL generation
• Process Lifecycle Management: Complete control over PR test processes with start/stop functionality and resource cleanup
• Visual Status Indicators: Clear visual feedback on PR and test status throughout the workflow

Architecture & Implementation

Frontend Components

• PRTestingTab: React component implementing the UI with responsive design patterns
• PRTestingService: Singleton service class managing GitHub API integration and test lifecycle
• Custom UI Components: Purpose-built components for PR cards, expandable sections, and server information display
• State Management: Comprehensive state handling for PR data, test status, and UI interactions

Backend Services

• PR Testing Server: Node.js server-side implementation for Git operations and process management
• API Routes: RESTful endpoints for PR cloning, test starting, and process termination
• Process Management: Sophisticated handling of child processes with proper cleanup and error handling
• Temporary Directory Management: Secure creation and cleanup of isolated test environments

Technical Highlights

• GitHub API Integration: Authenticated API calls with proper error handling and rate limit awareness
• Git Operations: Secure repository cloning with branch-specific checkout and dependency installation
• Process Isolation: Each PR test runs in its own process with dedicated port assignment
• Resource Management: Comprehensive tracking of process IDs, ports, and temporary directories
• Error Handling: Robust error handling with detailed logging and user feedback
• Security Considerations: Token management and secure process execution
• Cross-Platform Support: Compatible with Windows, macOS, and Linux environments

User Experience Enhancements

• Responsive Design: Adapts to different screen sizes with fluid layouts and mobile considerations
• Theme Integration: Full support for light and dark mode with consistent styling
• Loading States: Clear visual feedback during asynchronous operations
• Toast Notifications: Non-intrusive success and error notifications
• Expandable Sections: Collapsible UI sections for better information density management
• Copy-to-Clipboard: One-click copying of server URLs and file paths
• Active Test Indicators: Visual indicators for currently running tests

Implementation Details

• Uses singleton pattern for service management to maintain test state across component lifecycles
• Implements proper process cleanup to prevent orphaned processes and resource leaks
• Features intelligent port assignment to avoid conflicts between multiple PR tests
• Provides detailed logging for troubleshooting with structured error information
• Includes comprehensive error handling for network issues, Git operations, and process management
• Supports automatic dependency installation in cloned repositories

This feature significantly streamlines the PR review process by allowing developers to quickly test changes without manual setup, reducing the friction in the review workflow and enabling faster feedback cycles.