# Progress Status
## What Works
- Account Manager Tests
- loadAccounts functionality with Map structure
- validateAccount initialization
- AccountError types implementation
- fs mocks for mkdir and dirname
- Calendar Service Tests
- ISO date format handling
- createEvent validation
- Optional parameters testing
- Invalid date handling
- Gmail Service Tests
- Basic functionality verified
- Error Handling
- OAuth client error handling
- Debug logging for auth config
- Error message validation
## What's Left to Build/Investigate
1. Additional Test Coverage
- Edge cases and error scenarios
- Token refresh flows
- Rate limiting behavior
- Invalid input handling
- Concurrent operations
- MCP server operations
2. Test Infrastructure
- Mock implementations review
- Test organization optimization
- Documentation coverage
- Error message clarity
3. Integration Testing
- Tool registration verification
- Request validation flows
- Error propagation paths
- Authentication scenarios
- Response format validation
## Progress Status
- Account Manager Tests: ✅ Complete (14 tests)
- Calendar Service Tests: ✅ Complete (11 tests)
- Gmail Service Tests: ✅ Complete (6 tests)
- Basic Error Handling: ✅ Complete
- Edge Cases: 🔄 In Progress
- MCP Server Tests: 🔄 In Progress
- Integration Tests: 🔄 Pending
- Documentation: 🔄 Pending
- Final Review: 🔄 Pending