Test

/reviewed-on !2

Milestone1/unit_tests/monitor.js

@@ -19,7 +19,7 @@ function init_monitor(){
   var server = net.createServer(function(socket) {
     socket.on("data", function(data){
       diskspace.check("/", function(err, result){
-          var disk_used = result.used - start_disk;
+          var disk_used = Math.max(result.used - start_disk, 0);
           var ram_used = data;
           stream.write(Date.now() + "," + ram_used + "," + disk_used + "\n");
       });
@@ -40,7 +40,7 @@ process.on("exit", function(){
   monitor.kill();
 })
 
-diskspace.check("C", function (err, result){
+diskspace.check("/", function (err, result){
     start_disk = result.used;
     init_monitor();
 });
\ No newline at end of file