import { sanitizeLlmErrorMessage } from '../error-sanitizer'; const CLOUDFLARE_HTML = `403 Attention Required! | Cloudflare

Sorry, you have been blocked

You are unable to access n8n.io

`; describe('sanitizeLlmErrorMessage', () => { describe('HTML detection', () => { it('should return user-friendly message for Cloudflare HTML error with status 403', () => { const error = Object.assign(new Error(CLOUDFLARE_HTML), { status: 403 }); const result = sanitizeLlmErrorMessage(error); expect(result).not.toContain(' { const error = new Error('Error'); const result = sanitizeLlmErrorMessage(error); expect(result).not.toContain(' in uppercase', () => { const error = new Error('Server Error'); const result = sanitizeLlmErrorMessage(error); expect(result).not.toContain(' { it('should return 403-specific message for blocked requests', () => { const error = Object.assign(new Error(CLOUDFLARE_HTML), { status: 403 }); const result = sanitizeLlmErrorMessage(error); expect(result).toContain('blocked'); expect(result).toContain('security filter'); }); it('should return rate limit message for 429', () => { const error = Object.assign(new Error('Rate Limited'), { status: 429 }); const result = sanitizeLlmErrorMessage(error); expect(result).toContain('Rate limit'); }); it('should return user-friendly message for 429 with short non-HTML message', () => { const error = Object.assign( new Error('You exceeded your current quota, please check your plan and billing details.'), { status: 429 }, ); const result = sanitizeLlmErrorMessage(error); expect(result).toContain('Rate limit'); expect(result).not.toContain('quota'); expect(result).not.toContain('billing'); }); it('should return service unavailable message for 502', () => { const error = Object.assign(new Error('Bad Gateway'), { status: 502 }); const result = sanitizeLlmErrorMessage(error); expect(result).toContain('temporarily unavailable'); }); it('should return service unavailable message for 503', () => { const error = Object.assign(new Error('Service Unavailable'), { status: 503 }); const result = sanitizeLlmErrorMessage(error); expect(result).toContain('temporarily unavailable'); }); it('should return internal error message for other 5xx status codes', () => { const error = Object.assign(new Error('Error'), { status: 500 }); const result = sanitizeLlmErrorMessage(error); expect(result).toContain('internal error'); }); }); describe('passthrough for normal errors', () => { it('should pass through short, non-HTML error messages unchanged', () => { const error = new Error('Connection timeout'); const result = sanitizeLlmErrorMessage(error); expect(result).toBe('Connection timeout'); }); it('should pass through Anthropic API errors without HTML', () => { const error = new Error('401 Invalid API key'); const result = sanitizeLlmErrorMessage(error); expect(result).toBe('401 Invalid API key'); }); }); describe('excessively long messages', () => { it('should replace messages longer than 500 characters with a generic message', () => { const error = new Error('x'.repeat(501)); const result = sanitizeLlmErrorMessage(error); expect(result.length).toBeLessThan(500); expect(result).not.toBe('x'.repeat(501)); }); it('should keep messages at exactly 500 characters', () => { const msg = 'a'.repeat(500); const error = new Error(msg); const result = sanitizeLlmErrorMessage(error); expect(result).toBe(msg); }); }); describe('non-Error values', () => { it('should handle string thrown values', () => { const result = sanitizeLlmErrorMessage('something went wrong'); expect(result).toBe('something went wrong'); }); it('should handle string with HTML', () => { const result = sanitizeLlmErrorMessage('blocked'); expect(result).not.toContain(' { const result = sanitizeLlmErrorMessage(null); expect(result).toBe('null'); }); it('should handle undefined', () => { const result = sanitizeLlmErrorMessage(undefined); expect(result).toBe('undefined'); }); }); });