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// @flow
/* eslint-env mocha */
import assert from 'assert'
import lightFormat from '.'
describe('lightFormat', () => {
const date = new Date(1986, 3 /* Apr */, 4, 10, 32, 55, 123)
it('accepts a timestamp', () => {
const date = new Date(2014, 3, 4).getTime()
assert(lightFormat(date, 'yyyy-MM-dd') === '2014-04-04')
})
it('escapes characters between the single quote characters', () => {
const result = lightFormat(date, "'yyyy-'MM-dd'D yyyy-'MM-dd'")
assert(result === 'yyyy-04-04D yyyy-04-04')
})
it('two single quote characters are transformed into a "real" single quote', () => {
const date = new Date(2014, 3, 4, 5)
assert(lightFormat(date, "''h 'o''clock'''") === "'5 o'clock'")
})
it('accepts new line charactor', function () {
const date = new Date(2014, 3, 4, 5)
assert.equal(
lightFormat(date, "yyyy-MM-dd'\n'HH:mm:ss"),
'2014-04-04\n05:00:00'
)
})
describe('year', () => {
describe('regular year', () => {
it('works as expected', () => {
const result = lightFormat(date, 'y yy yyy yyyy yyyyy')
assert(result === '1986 86 1986 1986 01986')
})
it('1 BC formats as 1', () => {
const date = new Date(0)
date.setFullYear(0 /* Jan */, 1)
date.setHours(0, 0, 0, 0)
const result = lightFormat(date, 'y')
assert(result === '1')
})
it('2 BC formats as 2', () => {
const date = new Date(0)
date.setFullYear(-1, 0 /* Jan */, 1)
date.setHours(0, 0, 0, 0)
const result = lightFormat(date, 'y')
assert(result === '2')
})
})
})
describe('month', () => {
it('formatting month', () => {
const result = lightFormat(date, 'M MM')
assert(result === '4 04')
})
})
describe('day', () => {
it('date', () => {
const result = lightFormat(date, 'd dd')
assert(result === '4 04')
})
})
describe('hour', () => {
it('hour [1-12]', () => {
const result = lightFormat(
new Date(2018, 0 /* Jan */, 1, 0, 0, 0, 0),
'h hh'
)
assert(result === '12 12')
})
it('hour [0-23]', () => {
const result = lightFormat(
new Date(2018, 0 /* Jan */, 1, 0, 0, 0, 0),
'H HH'
)
assert(result === '0 00')
})
describe('AM, PM', () => {
it('works as expected', () => {
const result = lightFormat(
new Date(2018, 0 /* Jan */, 1, 0, 0, 0, 0),
'a aa aaa aaaa aaaaa'
)
assert(result === 'AM AM am a.m. a')
})
it('12 PM', () => {
const date = new Date(1986, 3 /* Apr */, 4, 12, 0, 0, 900)
assert(lightFormat(date, 'h H a') === '12 12 PM')
})
it('12 AM', () => {
const date = new Date(1986, 3 /* Apr */, 6, 0, 0, 0, 900)
assert(lightFormat(date, 'h H a') === '12 0 AM')
})
})
})
it('minute', () => {
const result = lightFormat(date, 'm mm')
assert(result === '32 32')
})
describe('second', () => {
it('second', () => {
const result = lightFormat(date, 's ss')
assert(result === '55 55')
})
})
it('fractional seconds', function () {
const result = lightFormat(date, 'S SS SSS SSSS')
assert(result === '1 12 123 1230')
})
it('returns empty string when the format is an empty string', () => {
assert(lightFormat(Date.now(), '') === '')
})
it("throws RangeError if the date isn't valid", () => {
assert.throws(
lightFormat.bind(null, new Date(NaN), 'MMMM d, yyyy'),
RangeError
)
})
it('implicitly converts `formatString`', () => {
// eslint-disable-next-line no-new-wrappers
const formatString = new String('yyyy-MM-dd')
const date = new Date(2014, 3, 4)
// @ts-expect-error
assert(lightFormat(date, formatString) === '2014-04-04')
})
it('throws RangeError exception if the format string contains an unescaped latin alphabet character', function () {
assert.throws(lightFormat.bind(null, date, 'yyyy-MM-dd-nnnn'), RangeError)
})
it('throws TypeError exception if passed less than 2 arguments', () => {
// @ts-expect-error
assert.throws(lightFormat.bind(null), TypeError)
// @ts-expect-error
assert.throws(lightFormat.bind(null, 1), TypeError)
})
})
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