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// @flow
/* eslint-env mocha */
import assert from 'power-assert'
import formatRFC3339 from '.'
import toInteger from '../_lib/toInteger/index'
import addLeadingZeros from '../_lib/addLeadingZeros/index'
// This makes sure we create the consistent offsets across timezones, no matter where these tests are ran.
function generateOffset(date) {
let offset = ''
const tzOffset = date.getTimezoneOffset()
if (tzOffset !== 0) {
const absoluteOffset = Math.abs(tzOffset)
const hourOffset = addLeadingZeros(toInteger(absoluteOffset / 60), 2)
const minuteOffset = addLeadingZeros(absoluteOffset % 60, 2)
// If less than 0, the sign is +, because it is ahead of time.
const sign = tzOffset < 0 ? '+' : '-'
offset = `${sign}${hourOffset}:${minuteOffset}`
} else {
offset = 'Z'
}
return offset
}
describe('formatRFC3339', () => {
it('formats RFC-3339 date string', () => {
var date = new Date(2019, 2 /* Mar */, 3, 19, 0, 52, 123)
assert(formatRFC3339(date) === `2019-03-03T19:00:52${generateOffset(date)}`)
})
it('accepts a timestamp', function() {
var date = new Date(2019, 9 /* Oct */, 4, 12, 30, 13, 456)
var time = date.getTime()
assert(formatRFC3339(time) === `2019-10-04T12:30:13${generateOffset(date)}`)
})
it('allows to specify digits of second fractions', function() {
var date = new Date(2019, 11 /* Dec */, 11, 1, 0, 0, 789)
assert(
formatRFC3339(date, { fractionDigits: 3 }) ===
`2019-12-11T01:00:00.789${generateOffset(date)}`
)
})
it('works when ms < 100', function() {
var date = new Date(2019, 11 /* Dec */, 11, 1, 0, 0, 12)
assert(
formatRFC3339(date, { fractionDigits: 2 }) ===
`2019-12-11T01:00:00.01${generateOffset(date)}`
)
})
it('implicitly converts options', function() {
var date = new Date(2019, 2 /* Mar */, 3, 19, 0, 52, 123)
// $ExpectedMistake
var result = formatRFC3339(date, {
fractionDigits: '2'
})
assert.equal(result, `2019-03-03T19:00:52.12${generateOffset(date)}`)
})
it('throws `RangeError` if `options.fractionDigits` is not convertable to 0, 1, 2, 3 or undefined', function() {
// $ExpectedMistake
var block = formatRFC3339.bind(null, new Date(2019, 2 /* Mar */, 3), {
fractionDigits: NaN
})
assert.throws(block, RangeError)
})
it('throws RangeError if the time value is invalid', () => {
assert.throws(formatRFC3339.bind(null, new Date(NaN)), RangeError)
})
it('throws TypeError exception if passed less than 1 argument', function() {
assert.throws(formatRFC3339.bind(null), TypeError)
})
})
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