old_contents: import unittest
  import os
  
  from framework import VppTestCase, VppTestRunner
  from vpp_devices import VppTAPInterface
  
  
  def check_tuntap_driver_access():
      return os.access("/dev/net/tun", os.R_OK or os.W_OK)
  
  
  @unittest.skipUnless(check_tuntap_driver_access(), "Permission denied")
  class TestTAP(VppTestCase):
      """ TAP Test Case """
  
      def test_tap_add_del(self):
          """Create TAP interface"""
          tap0 = VppTAPInterface(self, tap_id=0)
          tap0.add_vpp_config()
          self.assertTrue(tap0.query_vpp_config())
  
  
  if __name__ == '__main__':
      unittest.main(testRunner=VppTestRunner)
  
new_contents: import unittest
  import os
  
  from framework import VppTestCase, VppTestRunner
  from vpp_devices import VppTAPInterface
  
  
  def check_tuntap_driver_access():
      return os.access("/dev/net/tun", os.R_OK and os.W_OK)
  
  
  @unittest.skipIf(check_tuntap_driver_access(), "Permission denied")
  class TestTAP(VppTestCase):
      """ TAP Test Case """
  
      def test_tap_add_del(self):
          """Create TAP interface"""
          tap0 = VppTAPInterface(self, tap_id=0)
          tap0.add_vpp_config()
          self.assertTrue(tap0.query_vpp_config())
  
  
  if __name__ == '__main__':
      unittest.main(testRunner=VppTestRunner)
  
subject: fix skip logic on test_tap