/**
* reminderDateParser.test.ts
* Unit tests for reminder dueDate parsing helper.
*/
import { parseReminderDueDate } from './reminderDateParser.js';
const ORIGINAL_TZ = process.env.TZ;
describe('parseReminderDueDate', () => {
beforeAll(() => {
process.env.TZ = 'America/New_York';
});
afterAll(() => {
if (ORIGINAL_TZ) {
process.env.TZ = ORIGINAL_TZ;
} else {
delete process.env.TZ;
}
});
it('returns undefined for empty values', () => {
expect(parseReminderDueDate(undefined)).toBeUndefined();
expect(parseReminderDueDate('')).toBeUndefined();
});
it('parses date-only strings as local midnight', () => {
const parsed = parseReminderDueDate('2024-01-15');
const expected = new Date(2024, 0, 15);
expect(parsed?.getTime()).toBe(expected.getTime());
});
it('parses local datetime strings without timezone as local time', () => {
const parsed = parseReminderDueDate('2024-01-15 09:30:00');
const expected = new Date(2024, 0, 15, 9, 30, 0);
expect(parsed?.getTime()).toBe(expected.getTime());
});
it('parses ISO timestamps with timezone offsets', () => {
const parsed = parseReminderDueDate('2024-01-15T10:00:00Z');
expect(parsed?.toISOString()).toBe('2024-01-15T10:00:00.000Z');
});
it('normalizes date-only strings that include timezone offsets', () => {
const parsed = parseReminderDueDate('2024-01-15+08:00');
expect(parsed?.toISOString()).toBe('2024-01-14T16:00:00.000Z');
});
it('handles timezone offsets without a colon', () => {
const parsed = parseReminderDueDate('2024-01-15 10:00:00+0800');
expect(parsed?.toISOString()).toBe('2024-01-15T02:00:00.000Z');
});
});
