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index.test.ts
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index.test.ts
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/* eslint-disable @typescript-eslint/no-explicit-any */
import { describe, expect, it, test } from 'vitest';
import { isLeapYear, SimpleDate } from './index';
describe('SimpleDate', () => {
const todayDate = new Date();
const todayIso = `${todayDate.getFullYear()}-${String(
todayDate.getMonth() + 1
).padStart(2, '0')}-${String(todayDate.getDate()).padStart(2, '0')}`;
test.each`
input | expected
${'2023-01-02'} | ${'2023-01-02'}
${'2023-01-02T00:00:00.000Z'} | ${'2023-01-02'}
${'20230102'} | ${'2023-01-02'}
${'2023 Jan 02'} | ${'2023-01-02'}
${'2023 January 02'} | ${'2023-01-02'}
${'2023 December 2'} | ${'2023-12-02'}
${'02 January 2023'} | ${'2023-01-02'}
${'2 December 2023'} | ${'2023-12-02'}
${'31/1/2023'} | ${'2023-01-31'}
${'02/01/2023'} | ${'2023-01-02'}
${'02.01.2023'} | ${'2023-01-02'}
${'02/01/23'} | ${'2023-01-02'}
${'2-1-2023'} | ${'2023-01-02'}
${'02-01-2023'} | ${'2023-01-02'}
${'2000-02-29'} | ${'2000-02-29'}
${'today'} | ${todayIso}
${''} | ${'Invalid Date'}
${null} | ${'Invalid Date'}
${undefined} | ${'Invalid Date'}
${'2019'} | ${'Invalid Date'}
${'2001-02-29'} | ${'Invalid Date'}
${'2023-00-02'} | ${'Invalid Date'}
${'2023-01-00'} | ${'Invalid Date'}
${'a-01-02'} | ${'Invalid Date'}
${'2023-a-02'} | ${'Invalid Date'}
${'2023-01-a'} | ${'Invalid Date'}
${'2023-01'} | ${'Invalid Date'}
${'Invalid Date'} | ${'Invalid Date'}
${new SimpleDate('2023-01-02')} | ${'2023-01-02'}
${new Date('2023-01-02')} | ${'2023-01-02'}
${1684417075404} | ${'2023-05-18'}
`(
'constructor creates $expected when input is $input',
({ input, expected }) => {
expect(new SimpleDate(input).toString()).toBe(expected);
}
);
test.each`
year | month | day | expected
${2023} | ${3} | ${4} | ${'2023-03-04'}
${2023} | ${'Feb'} | ${4} | ${'2023-02-04'}
${2023} | ${'February'} | ${4} | ${'2023-02-04'}
${23} | ${'February'} | ${4} | ${'2023-02-04'}
${'2023'} | ${'5'} | ${'6'} | ${'2023-05-06'}
${'2023'} | ${'a'} | ${'2'} | ${'Invalid Date'}
${'2023'} | ${'a'} | ${null} | ${'Invalid Date'}
`(
'constructor creates $expected when input is $year, $month, $day',
({ year, month, day, expected }) => {
expect(new SimpleDate(year, month, day).toString()).toBe(expected);
}
);
it('should set internal date to be correct as of the input and display', () => {
const base = '2023-01-02';
const simpleDate = new SimpleDate(base);
expect(simpleDate.toString()).toBe(base);
expect(simpleDate.date).toStrictEqual(new Date(2023, 0, 2));
});
test.each`
dateOne | dateTwo | isEqualTo | isBefore | isOnOrBefore | isAfter | isOnOrAfter
${'2023-01-02'} | ${'2023-01-02'} | ${true} | ${false} | ${true} | ${false} | ${true}
${'2023-01-01'} | ${'2023-01-02'} | ${false} | ${true} | ${true} | ${false} | ${false}
${'2023-01-02'} | ${'2023-01-01'} | ${false} | ${false} | ${false} | ${true} | ${true}
${'2023-01-02'} | ${'foo'} | ${false} | ${false} | ${false} | ${false} | ${false}
${new SimpleDate('2023-01-02')} | ${new Date(2023, 0, 2)} | ${true} | ${false} | ${true} | ${false} | ${true}
${new Date(2023, 0, 2)} | ${new SimpleDate('2023-01-02')} | ${true} | ${false} | ${true} | ${false} | ${true}
${new Date(2023, 0, 1)} | ${new SimpleDate('2023-01-01')} | ${true} | ${false} | ${true} | ${false} | ${true}
${new Date(2023, 0, 1)} | ${new SimpleDate('2023-01-02')} | ${false} | ${true} | ${true} | ${false} | ${false}
${'2023-01-a'} | ${'2023-01-02'} | ${false} | ${false} | ${false} | ${false} | ${false}
${'2023-01-01'} | ${'2023-01-a'} | ${false} | ${false} | ${false} | ${false} | ${false}
`(
'$dateOne to $dateTwo isEqualTo($isEqualTo) isBefore($isBefore) isOnOrBefore($isOnOrBefore) isAfter($isAfter) isOnOrAfter($isOnOrAfter)',
({
dateOne,
dateTwo,
isEqualTo,
isBefore,
isOnOrBefore,
isAfter,
isOnOrAfter,
}) => {
expect(new SimpleDate(dateOne).isEqualTo(dateTwo)).toBe(isEqualTo);
expect(new SimpleDate(dateOne).isBefore(dateTwo)).toBe(isBefore);
expect(new SimpleDate(dateOne).isOnOrBefore(dateTwo)).toBe(isOnOrBefore);
expect(new SimpleDate(dateOne).isAfter(dateTwo)).toBe(isAfter);
expect(new SimpleDate(dateOne).isOnOrAfter(dateTwo)).toBe(isOnOrAfter);
}
);
test.each`
input | format | invalidMessage | expected
${'2023-01-02'} | ${null} | ${null} | ${'02/01/2023'}
${'2023-01-02'} | ${'short'} | ${null} | ${'02/01/2023'}
${'2023-01-02'} | ${'medium'} | ${null} | ${'2 Jan 2023'}
${'2023-01-02'} | ${'long'} | ${null} | ${'2 January 2023'}
${'2023-01-02'} | ${'iso'} | ${null} | ${'2023-01-02'}
${'2023-01-02'} | ${'isotime'} | ${null} | ${'2023-01-02T00:00:00'}
${'2023-01-02'} | ${'isofull'} | ${null} | ${'2023-01-02T00:00:00.000Z'}
${''} | ${null} | ${null} | ${'Invalid Date'}
${null} | ${null} | ${null} | ${'Invalid Date'}
${null} | ${null} | ${'💀'} | ${'💀'}
${undefined} | ${null} | ${null} | ${'Invalid Date'}
${'2001-02-29'} | ${null} | ${null} | ${'Invalid Date'}
`(
'should output $expected when toFormat is called with format $format and invalidMessage $invalidMessage',
({ input, format, invalidMessage, expected }) => {
expect(new SimpleDate(input).toFormat(format, invalidMessage)).toBe(
expected
);
}
);
test.each`
date | addition | type | expected
${'2023-01-14'} | ${1} | ${'day'} | ${'2023-01-15'}
${'2023-01-14'} | ${'1'} | ${'day'} | ${'2023-01-15'}
${'2023-01-14'} | ${2} | ${'days'} | ${'2023-01-16'}
${'2023-01-14'} | ${1} | ${'week'} | ${'2023-01-21'}
${'2023-01-14'} | ${2} | ${'weeks'} | ${'2023-01-28'}
${'2023-01-14'} | ${4} | ${'weeks'} | ${'2023-02-11'}
${'2023-01-14'} | ${1} | ${'month'} | ${'2023-02-14'}
${'2023-01-14'} | ${2} | ${'months'} | ${'2023-03-14'}
${'2023-01-14'} | ${1} | ${'year'} | ${'2024-01-14'}
${'2023-01-14'} | ${2} | ${'years'} | ${'2025-01-14'}
${'2023-01-14'} | ${null} | ${'days'} | ${'2023-01-14'}
${'2023-01-14'} | ${'🧀'} | ${'days'} | ${'2023-01-14'}
${'2023-01-14'} | ${'0'} | ${'days'} | ${'2023-01-14'}
`(
'should output $expected when an addition of $addition $type',
({ date, addition, type, expected }) => {
expect(new SimpleDate(date).add(addition, type).iso).toBe(expected);
}
);
test.each`
date | subtract | type | expected
${'2023-01-14'} | ${1} | ${'day'} | ${'2023-01-13'}
${'2023-01-14'} | ${'1'} | ${'day'} | ${'2023-01-13'}
${'2023-01-14'} | ${2} | ${'days'} | ${'2023-01-12'}
${'2023-01-14'} | ${1} | ${'week'} | ${'2023-01-07'}
${'2023-01-14'} | ${2} | ${'weeks'} | ${'2022-12-31'}
${'2023-01-14'} | ${4} | ${'weeks'} | ${'2022-12-17'}
${'2023-01-14'} | ${1} | ${'month'} | ${'2022-12-14'}
${'2023-01-14'} | ${2} | ${'months'} | ${'2022-11-14'}
${'2023-01-14'} | ${1} | ${'year'} | ${'2022-01-14'}
${'2023-01-14'} | ${2} | ${'years'} | ${'2021-01-14'}
${'2023-01-14'} | ${null} | ${'days'} | ${'2023-01-14'}
${'2023-01-14'} | ${'🧀'} | ${'days'} | ${'2023-01-14'}
${'2023-01-14'} | ${'0'} | ${'days'} | ${'2023-01-14'}
`(
'should output $expected when a subtraction of $subtract $type',
({ date, subtract, type, expected }) => {
expect(new SimpleDate(date).subtract(subtract, type).iso).toBe(expected);
}
);
it('should throw an error when an incorrect add or subtract type is provided', () => {
const date = new SimpleDate('2023-01-14');
expect(() => {
date.add(1, '🧀' as any);
}).toThrow();
expect(() => {
date.subtract(1, '🐁' as any);
}).toThrow();
});
test.each`
dateOne | dateTwo | expected
${'2023-01-14'} | ${'2023-01-14'} | ${0}
${'2023-01-14'} | ${'2023-01-13'} | ${-1}
${'2023-01-14'} | ${'2023-01-15'} | ${1}
${'2023-01-14'} | ${'2023-03-02'} | ${47}
${'2023-01-🧀'} | ${'2023-01-15'} | ${NaN}
${'2023-01-14'} | ${'2023-01-🐁'} | ${NaN}
`(
'$dateOne getNumberOfDaysTo $dateTwo should output $expected',
({ dateOne, dateTwo, expected }) => {
expect(new SimpleDate(dateOne).getNumberOfDaysTo(dateTwo)).toBe(expected);
}
);
test.each`
year | expected
${'2000'} | ${true}
${2000} | ${true}
${'2001'} | ${false}
${2001} | ${false}
${'a'} | ${false}
`(
'isLeapYear should return $expected for year $year',
({ year, expected }) => {
expect(isLeapYear(year)).toBe(expected);
}
);
});