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test.js
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test.js
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// @flow
/* eslint-env mocha */
import assert from 'power-assert'
import getISODay from '.'
describe('getISODay', function () {
it('returns the day of the ISO week of the given date', function () {
var result = getISODay(new Date(2012, 1 /* Feb */, 29))
assert(result === 3)
})
it('returns 7 if the given day is Sunday', function () {
var result = getISODay(new Date(2014, 5 /* Jun */, 1))
assert(result === 7)
})
it('accepts a string', function () {
var result = getISODay(new Date(2014, 6 /* Jul */, 2).toISOString())
assert(result === 3)
})
it('accepts a timestamp', function () {
var result = getISODay(new Date(2014, 5 /* Jun */, 1).getTime())
assert(result === 7)
})
it('returns NaN if the given date is invalid', function () {
var result = getISODay(new Date(NaN))
assert(isNaN(result))
})
})