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'use strict';
var common = require('../common');
var assert = require('assert');
var fs = require('fs');
var path = require('path');
var openCount = 0;
var _fsopen = fs.open;
var _fsclose = fs.close;
var loopCount = 50;
var totalCheck = 50;
var emptyTxt = path.join(common.fixturesDir, '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().%s()...', endFn);
var i = 0;
var check = 0;
var checkFunction = function() {
if (openCount != 0 && check < totalCheck) {
check++;
setTimeout(checkFunction, 100);
return;
}
assert.equal(0, openCount, 'no leaked file descriptors using ' +
endFn + '() (got ' + openCount + ')');
openCount = 0;
callback && setTimeout(callback, 100);
};
setInterval(function() {
var s = fs.createReadStream(emptyTxt);
s[endFn]();
if (++i === loopCount) {
clearTimeout(this);
setTimeout(checkFunction, 100);
}
}, 2);
}
testLeak('close', function() {
testLeak('destroy');
});