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// @flow
/* eslint-env mocha */
import assert from 'power-assert'
import intlFormat from '.'
// Before Node version 13.0.0, only the locale data for en-US is available by default.
const hasFullICU = () => {
try {
const january = new Date(9e8)
const spanish = new Intl.DateTimeFormat('es', { month: 'long' })
return spanish.format(january) === 'enero'
} catch (err) {
return false
}
}
const fullICUOnly = hasFullICU() ? it : it.skip
const getOperationSystemLocale = () => {
if (typeof process !== 'undefined') {
const ENV = process.env
const language = ENV.LC_ALL || ENV.LC_MESSAGES || ENV.LANG || ENV.LANGUAGE
return language?.split('.')[0].replace('_', '-')
} else {
return (
// @ts-expect-error
window.navigator.userLanguage ||
window.navigator.language ||
(window.navigator.languages || [])[0]
)
}
}
describe('intlFormat', () => {
describe('formats date', function () {
fullICUOnly(
"should work without format's options and locale's options",
function () {
const date = new Date(2019, 9 /* Oct */, 4, 12, 30, 13, 456)
const result = intlFormat(date)
const localeResult = intlFormat(date, {
locale: getOperationSystemLocale(),
})
assert(result === localeResult)
}
)
fullICUOnly("should work with only format's options", function () {
const date = new Date(2019, 9 /* Oct */, 4, 12, 30, 13, 456)
const formatOptions = {
year: 'numeric',
month: 'numeric',
day: 'numeric',
hour: 'numeric',
minute: 'numeric',
second: 'numeric',
hour12: false,
timeZone: 'America/Los_Angeles',
}
const result = intlFormat(date, formatOptions)
const localeResult = intlFormat(date, formatOptions, {
locale: getOperationSystemLocale(),
})
assert(result === localeResult)
})
fullICUOnly("should work with only locale's options", function () {
const date = new Date(2019, 9 /* Oct */, 4, 12, 30, 13, 456)
// Korean uses year-month-day order
const localeOptions = {
locale: 'ko-KR',
}
const result = intlFormat(date, localeOptions)
assert(result === '2019. 10. 4.')
})
fullICUOnly(
"should work with format's options and locale's options",
function () {
const date = new Date(2019, 9 /* Oct */, 4, 12, 30, 13, 456)
const formatOptions = {
weekday: 'long',
year: 'numeric',
month: 'long',
day: 'numeric',
}
const localeOptions = {
locale: 'de-DE',
}
const result = intlFormat(date, formatOptions, localeOptions)
assert(result === 'Freitag, 4. Oktober 2019')
}
)
})
it('throws RangeError if the date value is invalid', () => {
assert.throws(intlFormat.bind(null, new Date(NaN)), RangeError)
})
it('throws TypeError exception if passed less than 1 argument', () => {
assert.throws(intlFormat.bind(null), TypeError)
})
})
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