@financial-times/n-conversion-forms/helpers/duration-helpers.spec.js

Containing jsx components and styles for forms included on Accounts and Acquisition apps (next-signup, next-profile, next-retention, etc).

const {
	getDurationFromISO8601Value,
	is52WeeksOrLonger,
	is90DaysOrLonger,
} = require('./duration-helpers');

describe('Duration Utils', () => {
	describe('getDurationFromISO8601Value', () => {
		describe('plural units', () => {
			const PLURAL_UNITS = [
				{
					input: 'P3Y',
					expectation: '3 years',
				},
				{
					input: 'P26M',
					expectation: '26 months',
				},
				{
					input: 'P2Y',
					expectation: '2 years',
				},
				{
					input: 'P13M',
					expectation: '13 months',
				},
				{
					input: 'P52W',
					expectation: '52 weeks',
				},
				{
					input: 'P6M',
					expectation: '6 months',
				},
				{
					input: 'P13W',
					expectation: '13 weeks',
				},
				{
					input: 'P3M',
					expectation: '3 months',
				},
				{
					input: 'P8W',
					expectation: '8 weeks',
				},
			];

			PLURAL_UNITS.forEach(({ input, expectation }) => {
				it(`returns "${expectation}" for ${input}`, () => {
					expect(getDurationFromISO8601Value({ iso8601Value: input })).toBe(
						expectation
					);
				});
			});
		});

		describe('singular units', () => {
			describe('excludeAmountWhenSingular is true', () => {
				const SINGULAR_UNITS = [
					{
						input: 'P1Y',
						expectation: 'year',
					},
					{
						input: 'P1M',
						expectation: 'month',
					},
				];

				SINGULAR_UNITS.forEach(({ input, expectation }) => {
					it(`returns "${expectation}" for ${input}`, () => {
						expect(
							getDurationFromISO8601Value({
								iso8601Value: input,
								excludeAmountWhenSingular: true,
							})
						).toBe(expectation);
					});
				});
			});

			describe('excludeAmountWhenSingular is false', () => {
				const SINGULAR_UNITS = [
					{
						input: 'P1Y',
						expectation: '1 year',
					},
					{
						input: 'P1M',
						expectation: '1 month',
					},
				];

				SINGULAR_UNITS.forEach(({ input, expectation }) => {
					it(`returns "${expectation}" for ${input}`, () => {
						expect(
							getDurationFromISO8601Value({
								iso8601Value: input,
								excludeAmountWhenSingular: false,
							})
						).toBe(expectation);
					});
				});
			});
		});
	});

	describe('is52WeeksOrLonger', () => {
		describe('returns true for durations >= 52 weeks', () => {
			const DURATIONS_OF_52_WEEKS_OR_MORE = [
				'P3Y',
				'P26M',
				'P2Y',
				'P13M',
				'P1Y',
				'P52W',
			];

			DURATIONS_OF_52_WEEKS_OR_MORE.forEach((duration) => {
				it(`returns true for ${duration}`, () => {
					expect(is52WeeksOrLonger(duration)).toBe(true);
				});
			});
		});

		describe('returns false for durations < 52 weeks', () => {
			const DURATIONS_OF_LESS_THAN_52_WEEKS = [
				'P8W',
				'P1M',
				'P3M',
				'P13W',
				'P6M',
			];

			DURATIONS_OF_LESS_THAN_52_WEEKS.forEach((duration) => {
				it(`returns false for ${duration}`, () => {
					expect(is52WeeksOrLonger(duration)).toBe(false);
				});
			});
		});
	});

	describe('is90DaysOrLonger', () => {
		describe('returns true for durations >= 90 days', () => {
			const DURATIONS_OF_90_DAYS_OR_MORE = [
				'P3Y',
				'P26M',
				'P2Y',
				'P13M',
				'P1Y',
				'P52W',
				'P6M',
				'P13W',
				'P3M',
			];

			DURATIONS_OF_90_DAYS_OR_MORE.forEach((duration) => {
				it(`returns true for ${duration}`, () => {
					expect(is90DaysOrLonger(duration)).toBe(true);
				});
			});
		});

		describe('returns false for durations < 90 days', () => {
			const DURATIONS_OF_LESS_THAN_90_DAYS = ['P8W', 'P1M'];

			DURATIONS_OF_LESS_THAN_90_DAYS.forEach((duration) => {
				it(`returns false for ${duration}`, () => {
					expect(is90DaysOrLonger(duration)).toBe(false);
				});
			});
		});
	});
});