old_contents: var wifi = require('../src/os/modules/wifi');
  
  wifi.scan(function(err, networks) {
      if (err) {
          console.log(err);
      } else {
          console.log(networks);
      }
  });
  
  wifi.connect(function (err) {
      if (err) {
          console.log('wifi failed', err);
      } else {
          console.log('connected');
      }
  });
  
new_contents: var wifi = require('node-wifi'); //require('../src/os/modules/wifi');
  
  wifi.scan(function(err, networks) {
      if (err) {
          console.log(err);
      } else {
          console.log(networks);
      }
  });
  
  wifi.connect(function (err) {
      if (err) {
          console.log('wifi failed', err);
      } else {
          console.log('connected');
      }
  });
  
subject: test node-wifi