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// @flow
/* eslint-env mocha */
import assert from 'power-assert'
import endOfISOWeekYear from '.'
describe('endOfISOWeekYear', function() {
it('returns the date with the time set to 23:59:59.999 and the date set to the last day of an ISO year', function() {
const result = endOfISOWeekYear(new Date(2009, 0 /* Jan */, 1, 16, 0))
assert.deepEqual(result, new Date(2010, 0 /* Jan */, 3, 23, 59, 59, 999))
})
it('accepts a timestamp', function() {
const result = endOfISOWeekYear(
new Date(2005, 0 /* Jan */, 1, 6, 0).getTime()
)
assert.deepEqual(result, new Date(2005, 0 /* Jan */, 2, 23, 59, 59, 999))
})
it('does not mutate the original date', function() {
const date = new Date(2014, 6 /* Jul */, 2)
endOfISOWeekYear(date)
assert.deepEqual(date, new Date(2014, 6 /* Jul */, 2))
})
it('handles dates before 100 AD', function() {
const initialDate = new Date(0)
initialDate.setFullYear(5, 0 /* Jan */, 4)
initialDate.setHours(16, 0, 0, 0)
const expectedResult = new Date(0)
expectedResult.setFullYear(6, 0 /* Jan */, 1)
expectedResult.setHours(23, 59, 59, 999)
const result = endOfISOWeekYear(initialDate)
assert.deepEqual(result, expectedResult)
})
it('returns `Invalid Date` if the given date is invalid', function() {
const result = endOfISOWeekYear(new Date(NaN))
//@ts-expect-error
assert(result instanceof Date && isNaN(result))
})
it('throws TypeError exception if passed less than 1 argument', function() {
assert.throws(endOfISOWeekYear.bind(null), TypeError)
})
})
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