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