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47 lines
1.6 KiB
47 lines
1.6 KiB
3 years ago
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'use strict'
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const test = require('tape')
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const sleep = require('.')
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test('blocks event loop for given amount of milliseconds', ({ is, end }) => {
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const now = Date.now()
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setTimeout(() => {
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const delta = Date.now() - now
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const fuzzyDelta = Math.floor(delta / 10) * 10 // allow up to 10ms of execution lag
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is(fuzzyDelta, 1000)
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end()
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}, 100)
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sleep(1000)
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})
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if (typeof BigInt !== 'undefined') {
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test('allows ms to be supplied as a BigInt number', ({ is, end }) => {
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const now = Date.now()
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setTimeout(() => {
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const delta = Date.now() - now
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const fuzzyDelta = Math.floor(delta / 10) * 10 // allow up to 10ms of execution lag
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is(fuzzyDelta, 1000)
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end()
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}, 100)
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sleep(BigInt(1000)) // avoiding n notation as this will error on legacy node/browsers
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})
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}
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test('throws range error if ms less than 0', ({ throws, end }) => {
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throws(() => sleep(-1), RangeError('sleep: ms must be a number that is greater than 0 but less than Infinity'))
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end()
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})
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test('throws range error if ms is Infinity', ({ throws, end }) => {
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throws(() => sleep(Infinity), RangeError('sleep: ms must be a number that is greater than 0 but less than Infinity'))
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end()
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})
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test('throws range error if ms is not a number or bigint', ({ throws, end }) => {
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throws(() => sleep('Infinity'), TypeError('sleep: ms must be a number'))
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throws(() => sleep('foo'), TypeError('sleep: ms must be a number'))
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throws(() => sleep({a: 1}), TypeError('sleep: ms must be a number'))
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throws(() => sleep([1,2,3]), TypeError('sleep: ms must be a number'))
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end()
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})
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