text: from __future__ import print_function
  
  import ttfw_idf
  
  # Timer events
  TIMER_EVENT_LIMIT = 3
  
  TIMER_EXPIRY_HANDLING = 'TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_expiry_handler, executed {} out of ' + str(TIMER_EVENT_LIMIT) + ' times'
  
  # Task events
  TASK_ITERATION_LIMIT = 5
  TASK_UNREGISTRATION_LIMIT = 3
  
  TASK_ITERATION_POST = 'TASK_EVENTS:TASK_ITERATION_EVENT: posting to default loop, {} out of ' + str(TASK_ITERATION_LIMIT)
  TASK_ITERATION_HANDLING = 'TASK_EVENTS:TASK_ITERATION_EVENT: task_iteration_handler, executed {} times'
  
  
  def _test_timer_events(dut):
      dut.start_app()
  
      print('Checking timer events posting and handling')
  
      dut.expect('setting up')
      dut.expect('starting event sources')
  
      print('Finished setup')
  
      dut.expect('TIMER_EVENTS:TIMER_EVENT_STARTED: posting to default loop')
      print('Posted timer started event')
      dut.expect('TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler, instance 0')
      dut.expect('TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler, instance 1')
      dut.expect('TIMER_EVENTS:TIMER_EVENT_STARTED: timer_started_handler_2')
      dut.expect('TIMER_EVENTS:TIMER_EVENT_STARTED: timer_any_handler')
      dut.expect('TIMER_EVENTS:TIMER_EVENT_STARTED: all_event_handler')
      print('Handled timer started event')
  
      for expiries in range(1, TIMER_EVENT_LIMIT + 1):
          dut.expect('TIMER_EVENTS:TIMER_EVENT_EXPIRY: posting to default loop')
          print('Posted timer expiry event {} out of {}'.format(expiries, TIMER_EVENT_LIMIT))
  
          if expiries >= TIMER_EVENT_LIMIT:
              dut.expect('TIMER_EVENTS:TIMER_EVENT_STOPPED: posting to default loop')
              print('Posted timer stopped event')
  
          dut.expect(TIMER_EXPIRY_HANDLING.format(expiries))
          dut.expect('TIMER_EVENTS:TIMER_EVENT_EXPIRY: timer_any_handler')
          dut.expect('TIMER_EVENTS:TIMER_EVENT_EXPIRY: all_event_handler')
  
          print('Handled timer expiry event {} out of {}'.format(expiries, TIMER_EVENT_LIMIT))
  
      dut.expect('TIMER_EVENTS:TIMER_EVENT_STOPPED: timer_stopped_handler')
      dut.expect('TIMER_EVENTS:TIMER_EVENT_STOPPED: deleted timer event source')
      print('Handled timer stopped event')
  
  
  def _test_iteration_events(dut):
      dut.start_app()
  
      print('Checking iteration events posting and handling')
      dut.expect('setting up')
      dut.expect('starting event sources')
      print('Finished setup')
  
      for iteration in range(1, TASK_ITERATION_LIMIT + 1):
          dut.expect(TASK_ITERATION_POST.format(iteration))
          print('Posted iteration {} out of {}'.format(iteration, TASK_ITERATION_LIMIT))
  
          if iteration < TASK_UNREGISTRATION_LIMIT:
              dut.expect(TASK_ITERATION_HANDLING.format(iteration))
              dut.expect('TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler')
          elif iteration == TASK_UNREGISTRATION_LIMIT:
              dut.expect_all('TASK_EVENTS:TASK_ITERATION_EVENT: unregistering task_iteration_handler',
                             'TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler')
              print('Unregistered handler at iteration {} out of {}'.format(iteration, TASK_ITERATION_LIMIT))
          else:
              dut.expect('TASK_EVENTS:TASK_ITERATION_EVENT: all_event_handler')
  
          print('Handled iteration {} out of {}'.format(iteration, TASK_ITERATION_LIMIT))
  
      dut.expect('TASK_EVENTS:TASK_ITERATION_EVENT: deleting task event source')
      print('Deleted task event source')
  
  
  @ttfw_idf.idf_example_test(env_tag='Example_GENERIC', target=['esp32'])
  def test_default_event_loop_example(env, extra_data):
      dut = env.get_dut('default_event_loop', 'examples/system/esp_event/default_event_loop')
  
      _test_iteration_events(dut)
      _test_timer_events(dut)
  
  
  if __name__ == '__main__':
      test_default_event_loop_example()
  