macOS Simulator MCP Server

# Build Configuration and Test Coverage Summary ## Completed Tasks ### 1. Updated TypeScript Configuration (tsconfig.json) - Fixed module resolution to properly handle `.js` extensions in ES modules - Added ES module support configurations: - `allowJs: true` - Allow JavaScript files - `isolatedModules: true` - Ensure each file can be transpiled independently - `verbatimModuleSyntax: true` - Preserve module syntax - `moduleDetection: force` - Force module detection - Added ts-node configuration for ESM support ### 2. Enhanced Package.json - Added comprehensive development dependencies: - `@typescript-eslint/eslint-plugin` & `@typescript-eslint/parser` - TypeScript linting - `eslint` - Code quality checks - `prettier` - Code formatting - `tsx` - TypeScript execution for development - `ts-node` - TypeScript execution support - Added useful npm scripts: - `clean` - Clean build artifacts - `dev:run` - Development mode with hot reload using tsx - `lint` & `lint:fix` - ESLint commands - `format` & `format:check` - Prettier commands - `typecheck` - Type checking without emit - `pretest` - Pre-test validation - `ci` - Complete CI pipeline command ### 3. Created Comprehensive Test Files #### tests/unit/performance-monitor.test.ts - Complete test coverage for PerformanceMonitor class - Tests for: - Singleton pattern implementation - Tool execution metrics tracking - Resource usage monitoring - Queue and cache metrics - System health assessment - Performance trends analysis - Threshold monitoring and alerts - Edge cases and error handling #### tests/unit/request-batcher.test.ts - Complete test coverage for RequestBatcher class - Tests for: - Request queuing and batching - Parallel execution optimization - Tool compatibility grouping - Priority-based queue management - Performance tracking - Error handling and retries - Concurrent batch processing - Configuration updates #### Enhanced tests/unit/errors.test.ts - Added comprehensive edge case testing - Tests for: - Error inheritance and prototype chain - Error serialization - Edge cases (empty messages, special characters, extreme values) - Performance with large error counts - Null/undefined handling - Custom error type handling #### Enhanced tests/unit/permissions-simple.test.ts - Renamed and expanded to comprehensive coverage - Tests for all permission functions: - `checkScreenRecordingPermission()` - `checkAccessibilityPermission()` - `checkAllPermissions()` - `ensurePermissions()` - `openPermissionSettings()` - Mock-based testing for system commands - Edge cases and error scenarios - Integration test scenarios ### 4. Enhanced Test Configuration (vitest.config.ts) - Added path aliases for cleaner imports - Configured thread pool for test execution - Added comprehensive exclude patterns - Enabled coverage for all source files - Added mock reset configurations - Set up verbose reporter for better test output ### 5. Created Development Configuration Files #### .eslintrc.json - TypeScript-aware ESLint configuration - Strict type checking rules - Async/Promise best practices - Test file overrides for relaxed rules - Proper ignore patterns #### .prettierrc - Consistent code formatting rules - Single quotes, semicolons - 100 character line width - No trailing commas ## Build and Test Commands ```bash # Development npm run dev # Watch mode compilation npm run dev:run # Run with hot reload # Building npm run build # Compile TypeScript npm run clean # Clean build artifacts # Testing npm test # Run tests npm run test:coverage # Run with coverage report npm run test:watch # Watch mode # Code Quality npm run lint # Check for linting errors npm run lint:fix # Auto-fix linting errors npm run format # Format code with Prettier npm run typecheck # Type check without building # CI Pipeline npm run ci # Run full CI pipeline (lint, typecheck, test with coverage) ``` ## Coverage Targets All test files are configured to meet: - 80% line coverage - 80% function coverage - 80% branch coverage - 80% statement coverage ## Next Steps 1. Run `npm install` to install new dev dependencies 2. Run `npm run ci` to verify all tests pass and coverage meets targets 3. Fix any linting or formatting issues with `npm run lint:fix` and `npm run format` 4. Monitor performance using the new PerformanceMonitor in production 5. Utilize RequestBatcher for optimizing concurrent tool executions