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2bdf3d7 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | /* eslint-env mocha */
var times = require('lowscore/times')
var limiter = require('..')
var expect = require('chai').expect
var max = require('./max')
describe('promise-limit memory usage', function () {
var memoryProfile
beforeEach(function () {
memoryProfile = []
})
function checkMemory () {
var memory = process.memoryUsage().heapUsed
memoryProfile.push(memory)
}
function load (i) {
checkMemory()
return new Promise(function (resolve, reject) {
setTimeout(resolve, 10)
}).then(function () {
checkMemory()
var array = new Array(1024 * 1024)
return {
i: i,
array: array
}
})
}
it("doesn't use too much memory", function () {
this.timeout(20000)
var limit = limiter(5)
return Promise.all(times(1000, function (i) {
return limit(function () {
return load(i).then(function () {})
})
})).then(function () {
var maxMemoryUsage = max(memoryProfile)
expect(maxMemoryUsage).to.be.lessThan(2000 * 1024 * 1024)
})
})
})
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