Test resizer for memory leaks

leak.js

var fs = require('fs');
var resizers = require('../index');

var execute = function(next) {
  var Cover = resizers.cover;
  var Contain = resizers.contain;
  var Crop = resizers.crop;

  var inputImage = fs.createReadStream(__dirname + '/test.jpg');
  var coverImage = fs.createWriteStream(__dirname + '/cover.jpg');

  var cover = Cover({height: 100, width: 200});

  cover.on('exit', next);

  inputImage.pipe(cover).pipe(coverImage);
};

var TESTS = 500,
    completed = 0;

function test() {
  completed++;

  global.gc && gc();

  if (completed <= TESTS) {
    setImmediate(function() { execute(test); });
  }
  else {
    setTimeout(terminate, 2000);
  }
}

function terminate() {
  global.gc && gc();

  var mem = process.memoryUsage();

  var elapsedRss = Math.round(((mem.rss - startMem.rss) / 1024 / 1024) * 100) / 100;
  var elapsedHeapTotal = Math.round(((mem.heapTotal - startMem.heapTotal) / 1024 / 1024) * 100) / 100;
  var elapsedHeapUsed = Math.round(((mem.heapUsed - startMem.heapUsed) / 1024 / 1024) * 100) / 100;

  console.log(elapsedRss, elapsedHeapTotal, elapsedHeapUsed);
}

var startMem = process.memoryUsage();

test();