old_contents: import time
  from oeqa.oetest import oeRuntimeTest
  
  class CommWiFiTest(oeRuntimeTest):
      '''WiFi test by connmanctl'''
      def test_wifi_connect_nopassword(self):
          '''connmanctl to connect a no-password wifi AP'''
          # un-block software rfkill lock
          self.target.run('rfkill unblock all')
          # Enable WiFi
          (status, output) = self.target.run('connmanctl enable wifi')
          self.assertEqual(status, 0, msg="Error messages: %s" % output)
  
          # Scan nearby to get service of Guest
          (status, output) = self.target.run('connmanctl scan wifi')
          self.assertEqual(status, 0, msg="Error messages: %s" % output)
          (status, services) = self.target.run("connmanctl services | grep Guest | awk '{print $NF}'")
          self.assertEqual(status, 0, msg="Not found AP service for Guest")
  
          # Do connection
          (status, output) = self.target.run('connmanctl disconnect %s' % services)
          time.sleep(2)
          i = 0
          (status, output) = self.target.run('connmanctl connect %s' % services)
          while ( 'Connected ' not in output ):
              (status, output) = self.target.run('connmanctl connect %s' % services)
              i = i + 1
              if (i == 4):
                  break
              
          self.assertEqual(status, 0, msg="Error messages: %s" % output)
          time.sleep(15)
  
          # Check ip address by ifconfig command
          (status, output) = self.target.run("ifconfig wlp2s0 | grep 'inet addr:'")
          self.assertEqual(status, 0, msg="Error messages: %s" % output)
          
  
  
new_contents: import time
  from oeqa.oetest import oeRuntimeTest
  
  class CommWiFiTest(oeRuntimeTest):
      '''WiFi test by connmanctl'''
      def test_wifi_connect_nopassword(self):
          '''connmanctl to connect a no-password wifi AP'''
          # un-block software rfkill lock
          self.target.run('rfkill unblock all')
          # Enable WiFi
          (status, output) = self.target.run('connmanctl enable wifi')
          self.assertEqual(status, 0, msg="Error messages: %s" % output)
  
          # Scan nearby to get service of Guest
          (status, output) = self.target.run('connmanctl scan wifi')
          self.assertEqual(status, 0, msg="Error messages: %s" % output)
          (status, services) = self.target.run("connmanctl services | grep Guest | awk '{print $NF}'")
          self.assertEqual(status, 0, msg="Not found AP service for Guest")
  
          # Do connection
          (status, output) = self.target.run('connmanctl disconnect %s' % services)
          time.sleep(2)
          i = 0
          (status, output) = self.target.run('connmanctl connect %s' % services)
          while ( 'Connected ' not in output ):
              (status, output) = self.target.run('connmanctl connect %s' % services)
              i = i + 1
              if (i == 4):
                  break
              
          self.assertEqual(status, 0, msg="Error messages: %s" % output)
          time.sleep(15)
  
          # Check ip address by ifconfig command
          (status, output) = self.target.run("ifconfig wlp2s0 | grep 'inet addr:'")
          self.assertEqual(status, 0, msg="Error messages: %s" % output)
          
  
      def tearDown(self):
          ''' disable wifi after testing '''
   
          self.target.run('connmanctl disable wifi')
  
subject: Disable wifi after testing in comm_wifi_connect.py