MCP Time Server Node

import { formatOriginalTime, extractOffsetString } from '../../src/tools/convertTimezone'; describe('convertTimezone formatting helpers', () => { const testDate = new Date('2021-01-01T00:00:00.000Z'); describe('formatOriginalTime', () => { it('should preserve explicit offset format', () => { const result = formatOriginalTime( testDate, '2021-01-01T05:00:00.000+05:00', 'America/New_York' ); expect(result).toBe('2021-01-01T05:00:00.000+05:00'); }); it('should add milliseconds if missing with explicit offset', () => { const result = formatOriginalTime(testDate, '2021-01-01T05:00:00+05:00', 'America/New_York'); expect(result).toBe('2021-01-01T05:00:00.000+05:00'); }); it('should format time without explicit offset', () => { const result = formatOriginalTime(testDate, '2021-01-01T00:00:00', 'America/New_York'); expect(result).toContain('2020-12-31T19:00:00'); expect(result).toContain('-05:00'); }); it('should format UTC time', () => { const result = formatOriginalTime(testDate, '2021-01-01T00:00:00.000Z', 'UTC'); expect(result).toBe('2021-01-01T00:00:00.000Z'); }); describe('Debug logging', () => { it('should log formatting attempts', () => { const result = formatOriginalTime(testDate, '2021-01-01T00:00:00.000Z', 'UTC'); expect(result).toBeDefined(); }); }); }); describe('extractOffsetString', () => { it('should extract explicit offset from time string', () => { const result = extractOffsetString( '2021-01-01T00:00:00.000+05:00', testDate, 'America/New_York' ); expect(result).toBe('+05:00'); }); it('should return Z for Z suffix', () => { const result = extractOffsetString('2021-01-01T00:00:00.000Z', testDate, 'America/New_York'); expect(result).toBe('Z'); }); it('should return Z for UTC timezone', () => { const result = extractOffsetString('2021-01-01T00:00:00', testDate, 'UTC'); expect(result).toBe('Z'); }); it('should format offset for timezone', () => { const result = extractOffsetString('2021-01-01T00:00:00', testDate, 'America/New_York'); expect(result).toBe('-05:00'); }); it('should handle negative offsets', () => { const result = extractOffsetString( '2021-01-01T00:00:00.000-08:00', testDate, 'America/Los_Angeles' ); expect(result).toBe('-08:00'); }); describe('Debug logging', () => { it('should log extraction attempts', () => { const result = extractOffsetString('2021-01-01T00:00:00.000Z', testDate, 'UTC'); expect(result).toBeDefined(); }); }); }); });