MCP Sigmund

// Error handler tests import { MCPError, DatabaseError, ValidationError, QueryError, handleMCPError, validateDateRange, validateLimit, validateMonths, validateProvider, validateBankingQuery, validateDataOperation, } from '../src/error-handler.js'; describe('Error Handling', () => { describe('Custom Error Classes', () => { it('should create MCPError with correct properties', () => { const error = new MCPError('Test error', 'TEST_ERROR', 400, { message: 'Test error', timestamp: new Date().toISOString(), detail: 'test', }); expect(error.message).toBe('Test error'); expect(error.code).toBe('TEST_ERROR'); expect(error.statusCode).toBe(400); expect(error.details).toEqual({ message: 'Test error', timestamp: expect.any(String), detail: 'test', }); expect(error.name).toBe('MCPError'); }); it('should create DatabaseError with correct properties', () => { const error = new DatabaseError('Database error', { message: 'Database error', timestamp: new Date().toISOString(), table: 'test', }); expect(error.message).toBe('Database error'); expect(error.code).toBe('DATABASE_ERROR'); expect(error.statusCode).toBe(500); expect(error.details).toEqual({ message: 'Database error', timestamp: expect.any(String), table: 'test', }); expect(error.name).toBe('DatabaseError'); }); it('should create ValidationError with correct properties', () => { const error = new ValidationError('Validation error', { message: 'Validation error', timestamp: new Date().toISOString(), field: 'test', }); expect(error.message).toBe('Validation error'); expect(error.code).toBe('VALIDATION_ERROR'); expect(error.statusCode).toBe(400); expect(error.details).toEqual({ message: 'Validation error', timestamp: expect.any(String), field: 'test', }); expect(error.name).toBe('ValidationError'); }); it('should create QueryError with correct properties', () => { const error = new QueryError('Query error', { message: 'Query error', timestamp: new Date().toISOString(), query: 'test', }); expect(error.message).toBe('Query error'); expect(error.code).toBe('QUERY_ERROR'); expect(error.statusCode).toBe(400); expect(error.details).toEqual({ message: 'Query error', timestamp: expect.any(String), query: 'test', }); expect(error.name).toBe('QueryError'); }); }); describe('handleMCPError', () => { it('should handle MCPError correctly', () => { const error = new MCPError('Test error', 'TEST_ERROR', 400); const result = handleMCPError(error, 'test_context'); expect(result.success).toBe(false); expect(result.error).toBe('Test error'); expect(result.code).toBe('TEST_ERROR'); expect(result.context).toBe('test_context'); expect(result.timestamp).toBeDefined(); }); it('should handle regular Error correctly', () => { const error = new Error('Regular error'); const result = handleMCPError(error, 'test_context'); expect(result.success).toBe(false); expect(result.error).toBe('Regular error'); expect(result.code).toBe('UNKNOWN_ERROR'); expect(result.context).toBe('test_context'); expect(result.timestamp).toBeDefined(); }); it('should handle unknown error types', () => { const error = 'String error'; const result = handleMCPError(error, 'test_context'); expect(result.success).toBe(false); expect(result.error).toBe('String error'); expect(result.code).toBe('UNKNOWN_ERROR'); expect(result.context).toBe('test_context'); expect(result.timestamp).toBeDefined(); }); }); describe('Validation Functions', () => { describe('validateDateRange', () => { it('should pass with valid dates', () => { expect(() => validateDateRange('2025-01-01', '2025-12-31') ).not.toThrow(); }); it('should pass with only dateFrom', () => { expect(() => validateDateRange('2025-01-01')).not.toThrow(); }); it('should pass with only dateTo', () => { expect(() => validateDateRange(undefined, '2025-12-31')).not.toThrow(); }); it('should throw for invalid dateFrom format', () => { expect(() => validateDateRange('invalid-date', '2025-12-31')).toThrow( ValidationError ); }); it('should throw for invalid dateTo format', () => { expect(() => validateDateRange('2025-01-01', 'invalid-date')).toThrow( ValidationError ); }); it('should throw when dateFrom is after dateTo', () => { expect(() => validateDateRange('2025-12-31', '2025-01-01')).toThrow( ValidationError ); }); }); describe('validateLimit', () => { it('should pass with valid limits', () => { expect(() => validateLimit(1)).not.toThrow(); expect(() => validateLimit(1000)).not.toThrow(); expect(() => validateLimit(10000)).not.toThrow(); }); it('should pass with undefined', () => { expect(() => validateLimit(undefined)).not.toThrow(); }); it('should throw for limit too small', () => { expect(() => validateLimit(0)).toThrow(ValidationError); expect(() => validateLimit(-1)).toThrow(ValidationError); }); it('should throw for limit too large', () => { expect(() => validateLimit(10001)).toThrow(ValidationError); }); }); describe('validateMonths', () => { it('should pass with valid months', () => { expect(() => validateMonths(1)).not.toThrow(); expect(() => validateMonths(12)).not.toThrow(); expect(() => validateMonths(60)).not.toThrow(); }); it('should pass with undefined', () => { expect(() => validateMonths(undefined)).not.toThrow(); }); it('should throw for months too small', () => { expect(() => validateMonths(0)).toThrow(ValidationError); expect(() => validateMonths(-1)).toThrow(ValidationError); }); it('should throw for months too large', () => { expect(() => validateMonths(61)).toThrow(ValidationError); }); }); describe('validateProvider', () => { it('should pass with valid provider', () => { expect(() => validateProvider('deutsche-bank')).not.toThrow(); expect(() => validateProvider('tink')).not.toThrow(); }); it('should pass with undefined', () => { expect(() => validateProvider(undefined)).not.toThrow(); }); it('should throw for non-string provider', () => { expect(() => validateProvider(123 as any)).toThrow(ValidationError); expect(() => validateProvider({} as any)).toThrow(ValidationError); }); }); describe('validateBankingQuery', () => { it('should pass with valid queries', () => { const validQueries = [ 'accounts', 'transactions', 'balance', 'overview', 'spending_analysis', 'cashflow_analysis', 'providers', ]; validQueries.forEach(query => { expect(() => validateBankingQuery(query)).not.toThrow(); }); }); it('should throw for invalid query', () => { expect(() => validateBankingQuery('invalid_query')).toThrow(QueryError); expect(() => validateBankingQuery('')).toThrow(QueryError); }); }); describe('validateDataOperation', () => { it('should pass with valid operations', () => { const validOperations = [ 'get_stats', 'validate_data', 'export_data', 'cleanup_data', ]; validOperations.forEach(operation => { expect(() => validateDataOperation(operation)).not.toThrow(); }); }); it('should throw for invalid operation', () => { expect(() => validateDataOperation('invalid_operation')).toThrow( QueryError ); expect(() => validateDataOperation('')).toThrow(QueryError); }); }); }); });