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| Current File : //proc/self/root/home/ubuntu/node-v16.18.1/test/parallel/test-fs-read-stream-fd-leak.js |
'use strict';
require('../common');
const assert = require('assert');
const fs = require('fs');
const fixtures = require('../common/fixtures');
let openCount = 0;
const _fsopen = fs.open;
const _fsclose = fs.close;
const loopCount = 50;
const totalCheck = 50;
const emptyTxt = fixtures.path('empty.txt');
fs.open = function() {
openCount++;
return _fsopen.apply(null, arguments);
};
fs.close = function() {
openCount--;
return _fsclose.apply(null, arguments);
};
function testLeak(endFn, callback) {
console.log(`testing for leaks from fs.createReadStream().${endFn}()...`);
let i = 0;
let check = 0;
function checkFunction() {
if (openCount !== 0 && check < totalCheck) {
check++;
setTimeout(checkFunction, 100);
return;
}
assert.strictEqual(
openCount,
0,
`no leaked file descriptors using ${endFn}() (got ${openCount})`
);
openCount = 0;
callback && setTimeout(callback, 100);
}
setInterval(function() {
const s = fs.createReadStream(emptyTxt);
s[endFn]();
if (++i === loopCount) {
clearTimeout(this);
setTimeout(checkFunction, 100);
}
}, 2);
}
testLeak('close', function() {
testLeak('destroy');
});
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