text: # Need Python 3 string formatting functions
  from __future__ import print_function
  
  import ttfw_idf
  
  
  # TWAI Self Test Example constants
  STR_EXPECT = ("TWAI Self Test: Driver installed", "TWAI Self Test: Driver uninstalled")
  EXPECT_TIMEOUT = 20
  
  
  @ttfw_idf.idf_example_test(env_tag='Example_TWAI1')
  def test_twai_self_test_example(env, extra_data):
      # Get device under test, flash and start example. "dut1" must be defined in EnvConfig
      dut = env.get_dut('dut1', 'examples/peripherals/twai/twai_self_test', dut_class=ttfw_idf.ESP32DUT)
      dut.start_app()
  
      for string in STR_EXPECT:
          dut.expect(string, timeout=EXPECT_TIMEOUT)
  
  
  if __name__ == '__main__':
      test_twai_self_test_example()
  