MCP Time Server Node

import { validateTimezone, validateDateFormat, validateTimeUnit, validateRecurrencePattern, validateDayOfWeek, validateDayOfMonth, createError, } from '../../src/utils/validation'; import { TimeServerErrorCodes } from '../../src/types'; describe('Validation Utilities', () => { describe('validateTimezone', () => { it('should return true for valid IANA timezones', () => { expect(validateTimezone('UTC')).toBe(true); expect(validateTimezone('America/New_York')).toBe(true); expect(validateTimezone('Europe/London')).toBe(true); expect(validateTimezone('Asia/Tokyo')).toBe(true); expect(validateTimezone('EST')).toBe(true); // Legacy but valid expect(validateTimezone('EST5EDT')).toBe(true); // Legacy but valid }); it('should return false for invalid timezones', () => { expect(validateTimezone('Invalid/Zone')).toBe(false); expect(validateTimezone('NotATimezone')).toBe(false); }); it('should return false for empty/null/undefined', () => { expect(validateTimezone('')).toBe(false); expect(validateTimezone(undefined)).toBe(false); expect(validateTimezone(null as any)).toBe(false); }); it('should default empty string to UTC (special case)', () => { // Based on verified behavior: empty string defaults to UTC // This is a design decision we need to make expect(validateTimezone('', true)).toBe(true); // allowEmpty flag }); }); describe('validateDateFormat', () => { it('should validate ISO 8601 formats', () => { expect(validateDateFormat('2024-01-01')).toBe(true); expect(validateDateFormat('2024-01-01T12:00:00Z')).toBe(true); expect(validateDateFormat('2024-01-01T12:00:00+05:30')).toBe(true); expect(validateDateFormat('2024-01-01T12:00:00.123Z')).toBe(true); }); it('should validate Unix timestamps', () => { expect(validateDateFormat(1704110400)).toBe(true); expect(validateDateFormat('1704110400')).toBe(true); }); it('should reject invalid formats', () => { expect(validateDateFormat('not-a-date')).toBe(false); expect(validateDateFormat('2024-13-01')).toBe(false); // Invalid month expect(validateDateFormat('2024-01-32')).toBe(false); // Invalid day expect(validateDateFormat('')).toBe(false); expect(validateDateFormat('Mon, 01 Jan 2024 12:00:00 GMT')).toBe(false); // RFC2822 not supported by parseISO }); it('should handle null/undefined', () => { expect(validateDateFormat(undefined)).toBe(false); expect(validateDateFormat(null as any)).toBe(false); }); }); describe('validateTimeUnit', () => { it('should validate all valid time units', () => { const validUnits = ['years', 'months', 'days', 'hours', 'minutes', 'seconds']; validUnits.forEach((unit) => { expect(validateTimeUnit(unit)).toBe(true); }); }); it('should reject invalid units', () => { expect(validateTimeUnit('week')).toBe(false); expect(validateTimeUnit('milliseconds')).toBe(false); expect(validateTimeUnit('century')).toBe(false); expect(validateTimeUnit('')).toBe(false); expect(validateTimeUnit('day')).toBe(false); // Singular not accepted }); }); describe('validateRecurrencePattern', () => { it('should validate all valid patterns', () => { const validPatterns = ['daily', 'weekly', 'monthly', 'yearly']; validPatterns.forEach((pattern) => { expect(validateRecurrencePattern(pattern)).toBe(true); }); }); it('should reject invalid patterns', () => { expect(validateRecurrencePattern('hourly')).toBe(false); expect(validateRecurrencePattern('biweekly')).toBe(false); expect(validateRecurrencePattern('quarterly')).toBe(false); expect(validateRecurrencePattern('')).toBe(false); }); }); describe('validateDayOfWeek', () => { it('should validate days 0-6', () => { for (let i = 0; i <= 6; i++) { expect(validateDayOfWeek(i)).toBe(true); } }); it('should reject invalid days', () => { expect(validateDayOfWeek(-1)).toBe(false); expect(validateDayOfWeek(7)).toBe(false); expect(validateDayOfWeek(10)).toBe(false); expect(validateDayOfWeek(1.5)).toBe(false); expect(validateDayOfWeek(NaN)).toBe(false); }); }); describe('validateDayOfMonth', () => { it('should validate days 1-31', () => { expect(validateDayOfMonth(1)).toBe(true); expect(validateDayOfMonth(15)).toBe(true); expect(validateDayOfMonth(31)).toBe(true); }); it('should reject invalid days', () => { expect(validateDayOfMonth(0)).toBe(false); expect(validateDayOfMonth(32)).toBe(false); expect(validateDayOfMonth(-5)).toBe(false); expect(validateDayOfMonth(15.5)).toBe(false); expect(validateDayOfMonth(NaN)).toBe(false); }); }); describe('createError', () => { it('should create error with all fields', () => { const error = createError( TimeServerErrorCodes.INVALID_TIMEZONE, 'Invalid timezone provided', { timezone: 'Invalid/Zone' }, ); expect(error).toEqual({ code: TimeServerErrorCodes.INVALID_TIMEZONE, message: 'Invalid timezone provided', details: { timezone: 'Invalid/Zone' }, }); }); it('should create error without details', () => { const error = createError(TimeServerErrorCodes.RATE_LIMIT_EXCEEDED, 'Rate limit exceeded'); expect(error).toEqual({ code: TimeServerErrorCodes.RATE_LIMIT_EXCEEDED, message: 'Rate limit exceeded', }); }); }); });