n8n/packages/workflow/test/ExpressionExtensions/DateExtensions.test.ts

/**
 * @jest-environment jsdom
 */

import { extend } from '@/Extensions';
import { dateExtensions } from '@/Extensions/DateExtensions';
import { evaluate, getLocalISOString } from './Helpers';

describe('Data Transformation Functions', () => {
	describe('Date Data Transformation Functions', () => {
		test('.isWeekend() should work correctly on a date', () => {
			expect(evaluate('={{DateTime.now().isWeekend()}}')).toEqual(
				extend(new Date(), 'isWeekend', []),
			);
		});

		test('.toTimeFromNow() should work correctly on a date', () => {
			const JUST_NOW_STRING_RESULT = 'just now';
			expect(evaluate('={{DateTime.now().toTimeFromNow()}}')).toEqual(JUST_NOW_STRING_RESULT);
		});

		test('.beginningOf("week") should work correctly on a date', () => {
			expect(evaluate('={{(new Date).beginningOf("week")}}')).toEqual(
				dateExtensions.functions.beginningOf(new Date(), ['week']),
			);
		});

		test('.endOfMonth() should work correctly on a date', () => {
			expect(evaluate('={{ DateTime.now().endOfMonth() }}')).toEqual(
				dateExtensions.functions.endOfMonth(new Date()),
			);
		});

		test('.extract("day") should work correctly on a date', () => {
			expect(evaluate('={{ DateTime.now().extract("day") }}')).toEqual(
				dateExtensions.functions.extract(new Date(), ['day']),
			);
		});

		test('.format("yyyy LLL dd") should work correctly on a date', () => {
			expect(evaluate('={{ DateTime.now().format("yyyy LLL dd") }}')).toEqual(
				dateExtensions.functions.format(new Date(), ['yyyy LLL dd']),
			);
			expect(evaluate('={{ DateTime.now().format("yyyy LLL dd") }}')).not.toEqual(
				dateExtensions.functions.format(new Date(), ["HH 'hours and' mm 'minutes'"]),
			);
		});

		test('.toDate() should work on a string', () => {
			const date = new Date(2022, 0, 3);
			expect(evaluate(`={{ "${getLocalISOString(date)}".toDate() }}`)).toEqual(date);
		});
	});
});