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64 lines
1.8 KiB
64 lines
1.8 KiB
const fs = require('fs')
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const { waterfall, whilst } = require('../test/utils.test.js')
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const Nedb = require('../lib/datastore')
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const db = new Nedb({ filename: './workspace/openfds.db', autoload: true })
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const N = 64
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let i
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let fds
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function multipleOpen (filename, N, callback) {
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whilst(function () { return i < N }
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, function (cb) {
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fs.open(filename, 'r', function (err, fd) {
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i += 1
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if (fd) { fds.push(fd) }
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return cb(err)
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})
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}
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, callback)
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}
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waterfall([
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// Check that ulimit has been set to the correct value
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function (cb) {
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i = 0
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fds = []
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multipleOpen('./test_lac/openFdsTestFile', 2 * N + 1, function (err) {
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if (!err) { console.log('No error occured while opening a file too many times') }
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fds.forEach(function (fd) { fs.closeSync(fd) })
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return cb()
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})
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},
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function (cb) {
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i = 0
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fds = []
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multipleOpen('./test_lac/openFdsTestFile2', N, function (err) {
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if (err) { console.log('An unexpected error occured when opening file not too many times: ' + err) }
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fds.forEach(function (fd) { fs.closeSync(fd) })
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return cb()
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})
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},
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// Then actually test NeDB persistence
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function () {
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db.remove({}, { multi: true }, function (err) {
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if (err) { console.log(err) }
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db.insert({ hello: 'world' }, function (err) {
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if (err) { console.log(err) }
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i = 0
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whilst(function () { return i < 2 * N + 1 }
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, function (cb) {
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db.persistence.persistCachedDatabase(function (err) {
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if (err) { return cb(err) }
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i += 1
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return cb()
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})
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}
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, function (err) {
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if (err) { console.log('Got unexpected error during one peresistence operation: ' + err) }
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}
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)
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})
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})
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}
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], () => {})
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