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// @flow
/* eslint-env mocha */
import assert from 'power-assert'
import setMilliseconds from '.'
describe('setMilliseconds', function() {
it('sets the milliseconds', function() {
const result = setMilliseconds(
new Date(2014, 8 /* Sep */, 1, 11, 30, 40, 500),
300
)
assert.deepEqual(result, new Date(2014, 8 /* Sep */, 1, 11, 30, 40, 300))
})
it('accepts a timestamp', function() {
const result = setMilliseconds(
new Date(2014, 8 /* Sep */, 1, 11, 30, 15, 750).getTime(),
755
)
assert.deepEqual(result, new Date(2014, 8 /* Sep */, 1, 11, 30, 15, 755))
})
it('converts a fractional number to an integer', function() {
const result = setMilliseconds(
new Date(2014, 8 /* Sep */, 1, 11, 30, 40, 500),
300.999
)
assert.deepEqual(result, new Date(2014, 8 /* Sep */, 1, 11, 30, 40, 300))
})
it('implicitly converts number arguments', function() {
const result = setMilliseconds(
new Date(2014, 8 /* Sep */, 1, 11, 30, 40, 500),
// @ts-expect-error
'300'
)
assert.deepEqual(result, new Date(2014, 8 /* Sep */, 1, 11, 30, 40, 300))
})
it('does not mutate the original date', function() {
var date = new Date(2014, 8 /* Sep */, 1, 11, 30, 40, 500)
setMilliseconds(date, 137)
assert.deepEqual(date, new Date(2014, 8 /* Sep */, 1, 11, 30, 40, 500))
})
it('returns `Invalid Date` if the given date is invalid', function() {
const result = setMilliseconds(new Date(NaN), 300)
assert(result instanceof Date && isNaN(result.getTime()))
})
it('returns `Invalid Date` if the given amount is NaN', function() {
const result = setMilliseconds(
new Date(2014, 8 /* Sep */, 1, 11, 30, 40, 500),
NaN
)
assert(result instanceof Date && isNaN(result.getTime()))
})
it('throws TypeError exception if passed less than 2 arguments', function() {
assert.throws(setMilliseconds.bind(null), TypeError)
assert.throws(setMilliseconds.bind(null, 1), TypeError)
})
})
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