added timer to index export

download_index.js

 const puppeteer = require('puppeteer');
+const Server = require('ws').Server;
 const args = require("yargs")
 .usage("Usage : download_index.js -file file_path")
 .demandOption(['file'])
@@ -7,8 +8,33 @@ const args = require("yargs")
 .nargs("file", 1)
 .argv;
 
+var browser,
+    start;
+
+function init_server (){
+  var port = 9030;
+  var ws = new Server({port: port});
+  ws.on('connection', function(w){
+    w.on('message', function(msg){
+      if (msg === "Start"){
+          start = Date.now();
+      } else if (msg === "Done"){
+          var total = Date.now() - start;
+          console.log("Time spent : " + total/1000 + "s");
+      } else {
+        console.log("Error : " + msg);
+        browser.close();
+      }
+    });
+    w.on('close', function() {
+      ws.close();
+    });
+  });
+}
+
 (async () => {
-  var browser = await puppeteer.launch({headless: false});
+  init_server();
+  browser = await puppeteer.launch({headless: false});
   var page = await browser.newPage();
   await page.goto('https://softinst115787.host.vifib.net/public/unit_tests/download_index.html');
   const [fileChooser] = await Promise.all([

download_index_random.js

 const puppeteer = require('puppeteer');
+const Server = require('ws').Server;
 const randomstring = require("randomstring");
 const tmp = require('tmp');
 const fs = require('fs');
@@ -10,6 +11,30 @@ const args = require("yargs")
 .nargs("prom", 1)
 .argv;
 
+var browser,
+    start;
+
+function init_server (){
+  var port = 9030;
+  var ws = new Server({port: port});
+  ws.on('connection', function(w){
+    w.on('message', function(msg){
+      if (msg === "Start"){
+          start = Date.now();
+      } else if (msg === "Done"){
+          var total = Date.now() - start;
+          console.log("Time spent : " + total/1000 + "s");
+      } else {
+        console.log("Error : " + msg);
+        browser.close();
+      }
+    });
+    w.on('close', function() {
+      ws.close();
+    });
+  });
+}
+
 function gen_rdm_string (length){
   return randomstring.generate({
     length: length,
@@ -44,8 +69,9 @@ function gen_random_content (){
 }
 
 (async () => {
+  init_server();
   var file_path = gen_random_content();
-  var browser = await puppeteer.launch({headless: false});
+  browser = await puppeteer.launch({headless: false});
   var page = await browser.newPage();
   await page.goto('https://softinst115787.host.vifib.net/public/unit_tests/download_index.html');
   const [fileChooser] = await Promise.all([