test: for benchmark

bench/test.js

@@ -0,0 +1,48 @@
+'use strict';
+
+var Lastest = require('node-pnglib-master');
+var Newest = require('..')
+var Benchmark = require('benchmark');
+var suite = new Benchmark.Suite;
+
+// add tests
+suite
+  .add('PNGlib#Lastest', function() {
+    let png = new Lastest(200, 150);
+
+    for (let i = 0, num = 200 / 10; i <= num; i += .01) {
+
+      let x = i * 10;
+      let y = Math.sin(i) * Math.sin(i) * 50 + 50;
+
+      // use a color triad of Microsofts million dollar color
+      png.setPixel(x, (y - 10), 'green');
+      png.setPixel(x, (y), '#FF00FF');
+      png.setPixel(x, (y + 10), 'rgb(255,0,0)');
+    }
+  })
+  .add('PNGlib#Newest', function() {
+    let png = new Newest(200, 150);
+
+    for (let i = 0, num = 200 / 10; i <= num; i += .01) {
+
+      let x = i * 10;
+      let y = Math.sin(i) * Math.sin(i) * 50 + 50;
+
+      // use a color triad of Microsofts million dollar color
+      png.setPixel(x, (y - 10), 'green');
+      png.setPixel(x, (y), '#FF00FF');
+      png.setPixel(x, (y + 10), 'rgb(255,0,0)');
+    }
+  })
+  // add listeners
+  .on('cycle', function(event) {
+    console.log(String(event.target));
+  })
+  .on('complete', function() {
+    console.log('Fastest is ' + this.filter('fastest').map('name'));
+  })
+  // run async
+  .run({ 'async': true });
+
+

package.json

@@ -26,6 +26,7 @@
   },
   "homepage": "https://github.com/Lellansin/node-pnglib#readme",
   "devDependencies": {
+    "benchmark": "^2.1.4",
     "coveralls": "^2.13.1",
     "istanbul": "^0.4.5",
     "mocha": "^3.4.2",