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49 lines
1.0 KiB
JavaScript
49 lines
1.0 KiB
JavaScript
/* eslint-env mocha */
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var times = require('lowscore/times')
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var limiter = require('..')
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var expect = require('chai').expect
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var max = require('./max')
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describe('promise-limit memory usage', function () {
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var memoryProfile
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beforeEach(function () {
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memoryProfile = []
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})
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function checkMemory () {
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var memory = process.memoryUsage().heapUsed
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memoryProfile.push(memory)
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}
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function load (i) {
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checkMemory()
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return new Promise(function (resolve, reject) {
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setTimeout(resolve, 10)
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}).then(function () {
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checkMemory()
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var array = new Array(1024 * 1024)
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return {
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i: i,
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array: array
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}
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})
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}
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it("doesn't use too much memory", function () {
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this.timeout(20000)
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var limit = limiter(5)
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return Promise.all(times(1000, function (i) {
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return limit(function () {
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return load(i).then(function () {})
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})
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})).then(function () {
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var maxMemoryUsage = max(memoryProfile)
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expect(maxMemoryUsage).to.be.lessThan(2000 * 1024 * 1024)
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})
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})
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})
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