MCP Time Server Node

import { parseDateWithTimezone, parseHolidayDates } from '../../src/utils/businessUtils'; import { DateParsingError, HolidayDataError } from '../../src/adapters/mcp-sdk'; // Mock parseTimeInput since it's a dependency jest.mock('../../src/utils/parseTimeInput', () => ({ parseTimeInput: jest.fn((dateStr: string, timezone: string) => { // Simple mock implementation for testing if (!dateStr || typeof dateStr !== 'string') { throw new Error('Invalid date string'); } // Simulate different date formats if (dateStr === 'invalid-date') { throw new Error('Cannot parse date'); } // Return a mock parsed result const date = new Date(dateStr); if (isNaN(date.getTime())) { throw new Error('Invalid date format'); } return { date, timezone }; }), })); describe('businessUtils', () => { describe('parseDateWithTimezone', () => { it('should parse valid date strings', () => { const result = parseDateWithTimezone('2025-01-31', 'UTC', 'test_field'); expect(result).toBeInstanceOf(Date); expect(result.toISOString()).toContain('2025-01-31'); }); it('should parse date with time', () => { const result = parseDateWithTimezone('2025-01-31T10:30:00', 'America/New_York', 'start_time'); expect(result).toBeInstanceOf(Date); }); it('should throw error with correct structure for invalid date', () => { expect(() => { parseDateWithTimezone('invalid-date', 'UTC', 'end_time'); }).toThrow(); try { parseDateWithTimezone('invalid-date', 'UTC', 'end_time'); } catch (e: any) { expect(e).toBeInstanceOf(DateParsingError); expect(e.code).toBe('DATE_PARSING_ERROR'); expect(e.message).toContain('Invalid end_time format'); expect(e.details.end_time).toBe('invalid-date'); } }); it('should include field name in error message', () => { try { parseDateWithTimezone('invalid-date', 'UTC', 'custom_field'); } catch (e: any) { expect(e).toBeInstanceOf(DateParsingError); expect(e.code).toBe('DATE_PARSING_ERROR'); expect(e.message).toContain('Invalid custom_field format'); expect(e.details.custom_field).toBe('invalid-date'); } }); it('should preserve timezone in parsing', () => { const timezone = 'Europe/London'; const result = parseDateWithTimezone('2025-01-31T12:00:00', timezone, 'test'); // The function uses parseTimeInput which should handle timezone expect(result).toBeInstanceOf(Date); }); }); describe('parseHolidayDates', () => { it('should parse array of valid holiday dates', () => { const holidays = ['2025-01-01', '2025-07-04', '2025-12-25']; const result = parseHolidayDates(holidays, 'UTC'); expect(result).toHaveLength(3); expect(result[0]).toBeInstanceOf(Date); expect(result[1]).toBeInstanceOf(Date); expect(result[2]).toBeInstanceOf(Date); }); it('should handle empty array', () => { const result = parseHolidayDates([], 'America/New_York'); expect(result).toEqual([]); }); it('should parse dates with timezone awareness', () => { const holidays = ['2025-01-01T00:00:00']; const result = parseHolidayDates(holidays, 'America/Los_Angeles'); expect(result).toHaveLength(1); expect(result[0]).toBeInstanceOf(Date); }); it('should throw error for invalid date in array', () => { const holidays = ['2025-01-01', 'invalid-date', '2025-12-25']; expect(() => { parseHolidayDates(holidays, 'UTC'); }).toThrow(); try { parseHolidayDates(holidays, 'UTC'); } catch (e: any) { expect(e).toBeInstanceOf(HolidayDataError); expect(e.code).toBe('HOLIDAY_DATA_ERROR'); expect(e.message).toContain('Invalid holiday date'); expect(e.details.holiday).toBe('invalid-date'); expect(e.details.index).toBe(1); } }); it('should include index in error for tracking', () => { const holidays = ['2025-01-01', '2025-02-30', 'bad-date']; // Feb 30 doesn't exist try { parseHolidayDates(holidays, 'UTC'); } catch (e: any) { // Should fail on first invalid date expect(e).toBeInstanceOf(HolidayDataError); expect(e.code).toBe('HOLIDAY_DATA_ERROR'); expect(e.details.index).toBeDefined(); expect(typeof e.details.index).toBe('number'); } }); it('should handle dates in different formats', () => { const holidays = ['2025-01-01', '2025-02-14T14:30:00', '2025-03-17T00:00:00Z']; const result = parseHolidayDates(holidays, 'UTC'); expect(result).toHaveLength(3); result.forEach((date: Date) => { expect(date).toBeInstanceOf(Date); // Just verify it's a valid date, year might vary due to mock expect(date.getTime()).not.toBeNaN(); }); }); it('should preserve original error information', () => { const holidays = ['not-a-date']; try { parseHolidayDates(holidays, 'UTC'); } catch (e: any) { expect(e).toBeInstanceOf(HolidayDataError); expect(e.code).toBe('HOLIDAY_DATA_ERROR'); expect(e.details.originalError).toBeDefined(); // Just verify error is preserved, exact message may vary expect(typeof e.details.originalError).toBe('string'); } }); }); describe('edge cases', () => { it('should handle null timezone correctly', () => { // This tests that the utilities properly pass through the timezone const result = parseDateWithTimezone('2025-01-31', '', 'field'); expect(result).toBeInstanceOf(Date); }); it('should handle very long date strings', () => { const longString = '2025-01-31' + 'x'.repeat(1000); expect(() => { parseDateWithTimezone(longString, 'UTC', 'field'); }).toThrow(); }); it('should maintain consistency between utilities', () => { const dateStr = '2025-06-15'; const timezone = 'Asia/Tokyo'; // Both utilities should parse dates the same way const singleDate = parseDateWithTimezone(dateStr, timezone, 'test'); const arrayDates = parseHolidayDates([dateStr], timezone); expect(singleDate.getTime()).toBe(arrayDates[0].getTime()); }); }); });