text: 
  #
  # Copyright (c) 2019, Arista Networks, Inc.
  # All rights reserved.
  #
  # Redistribution and use in source and binary forms, with or without
  # modification, are permitted provided that the following conditions are
  # met:
  #
  #   Redistributions of source code must retain the above copyright notice,
  #   this list of conditions and the following disclaimer.
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  #   Redistributions in binary form must reproduce the above copyright
  #   notice, this list of conditions and the following disclaimer in the
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  #   Neither the name of Arista Networks nor the names of its
  #   contributors may be used to endorse or promote products derived from
  #   this software without specific prior written permission.
  #
  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  # 'AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ARISTA NETWORKS
  # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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  # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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  # IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  #
  
  __author__ = 'Petr Ankudinov'
  
  import pytest
  import netdiff
  
  
  def test_can_assert_true():
      # before any test verify if PyTest is working and can assert True
      assert True
  
  @pytest.mark.parametrize("filename", ['topology.yml'])
  def test_if_topology_is_correct(filename):
      current_data_aka_left, intended_data_aka_right = netdiff.process.test_data.for_yaml_diff(filename)
      assert current_data_aka_left == intended_data_aka_right
  
  @pytest.mark.parametrize("filename", ['topology_no_server.yml'])
  def test_if_topology_is_correct_without_servers(filename):
      current_data_aka_left, intended_data_aka_right = netdiff.process.test_data.for_yaml_diff(filename)
      assert current_data_aka_left == intended_data_aka_right
  
  @pytest.mark.parametrize("filename", ['bgp_peering.yml'])
  def test_if_bgp_peering_is_correct(filename):
      current_data_aka_left, intended_data_aka_right = netdiff.process.test_data.for_yaml_diff(filename)
      assert current_data_aka_left == intended_data_aka_right
  
  @pytest.mark.parametrize("filename", ['cpu_and_more.yml'])
  def test_cpu_utilization(filename):
      current_data_aka_left, intended_data_aka_right = netdiff.process.test_data.for_yaml_diff(filename)
      assert current_data_aka_left == intended_data_aka_right
  
  @pytest.mark.parametrize("filename", ['port_status.yml'])
  def test_port_channel_status(filename):
      current_data_aka_left, intended_data_aka_right = netdiff.process.test_data.for_yaml_diff(filename)
      assert current_data_aka_left == intended_data_aka_right
  