Apple Events MCP Server

# Task 005: Production Error Handling Test ## Feature Production Error Handling - Add tests to verify environment-based error message sanitization. ## BDD Scenario ```gherkin Feature: Production Error Handling Scenario: Development mode shows detailed errors Given NODE_ENV="development" And an internal error occurs When createErrorMessage generates the response Then the full error message is returned Scenario: Production mode sanitizes errors Given NODE_ENV="production" And DEBUG is not set And an internal error occurs When createErrorMessage generates the response Then "System error occurred" is returned Scenario: Production mode with DEBUG shows details Given NODE_ENV="production" And DEBUG="1" And an internal error occurs When createErrorMessage generates the response Then the full error message is returned Scenario: ValidationError always shown Given NODE_ENV="production" And a ValidationError occurs When createErrorMessage generates the response Then the validation error details are shown Scenario: Permission error always shown Given NODE_ENV="production" And a permission error occurs When createErrorMessage generates the response Then the permission error message is shown And includes System Settings instructions Scenario: Undefined NODE_ENV defaults to production-safe Given NODE_ENV is undefined And DEBUG is not set And an internal error occurs When createErrorMessage generates the response Then "System error occurred" is returned ``` ## Files to Modify | File | Action | |------|--------| | `src/utils/errorHandling.test.ts` | Add new tests for environment modes | ## Implementation Notes 1. Test the `isDevelopmentMode()` helper function (if extracted) 2. Test `createErrorMessage()` with various environment configurations: - `NODE_ENV=development` - `NODE_ENV=production` (no DEBUG) - `NODE_ENV=production` with `DEBUG=1` - `NODE_ENV=undefined` 3. Use `beforeEach`/`afterEach` to save and restore `process.env` 4. Test that ValidationError and permission errors are always shown with details ## Verification ```bash # Run the error handling tests pnpm test -- src/utils/errorHandling.test.ts # Expected: All environment mode tests pass ``` ## Dependencies - None (this is a test-only task) ## Commit ``` test(errorHandling): add environment mode tests ```