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| const t = require('tap')
|
| const main = () => {
| if (process.argv[2] === 'polyfill-all-settled') {
| Promise.allSettled = null
| runTests()
| } else if (process.argv[2] === 'native-all-settled') {
| Promise.allSettled = Promise.allSettled || (
| promises => {
| const reflections = []
| for (let i = 0; i < promises.length; i++) {
| reflections[i] = Promise.resolve(promises[i]).then(value => ({
| status: 'fulfilled',
| value,
| }), reason => ({
| status: 'rejected',
| reason,
| }))
| }
| return Promise.all(reflections)
| }
| )
| runTests()
| } else {
| t.spawn(process.execPath, [__filename, 'polyfill-all-settled'])
| t.spawn(process.execPath, [__filename, 'native-all-settled'])
| }
| }
|
| const runTests = () => {
| const lateFail = require('../')
|
| t.test('fail only after all promises resolve', t => {
| let resolvedSlow = false
| const fast = () => Promise.reject('nope')
| const slow = () => new Promise(res => setTimeout(res, 100))
| .then(() => resolvedSlow = true)
|
| // throw some holes and junk in the array to verify that we handle it
| return t.rejects(lateFail([fast(),,,,slow(), null, {not: 'a promise'},,,]))
| .then(() => t.equal(resolvedSlow, true, 'resolved slow before failure'))
| })
|
| t.test('works just like Promise.all() otherwise', t => {
| const one = () => Promise.resolve(1)
| const two = () => Promise.resolve(2)
| const tre = () => Promise.resolve(3)
| const fur = () => Promise.resolve(4)
| const fiv = () => Promise.resolve(5)
| const six = () => Promise.resolve(6)
| const svn = () => Promise.resolve(7)
| const eit = () => Promise.resolve(8)
| const nin = () => Promise.resolve(9)
| const ten = () => Promise.resolve(10)
| const expect = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
| const all = Promise.all([
| one(),
| two(),
| tre(),
| fur(),
| fiv(),
| six(),
| svn(),
| eit(),
| nin(),
| ten(),
| ])
| const late = lateFail([
| one(),
| two(),
| tre(),
| fur(),
| fiv(),
| six(),
| svn(),
| eit(),
| nin(),
| ten(),
| ])
|
| return Promise.all([all, late]).then(([all, late]) => {
| t.strictSame(all, expect)
| t.strictSame(late, expect)
| })
| })
| }
|
| main()
|
|
