old_contents: import pkg_resources
  from rml.exceptions import ConfigException
  import rml.element
  import pytest
  import cothread
  pkg_resources.require('cothread')
  
  
  def get_elements(fields):
      # Return a list of requested elements
      # <list> fields: 'x' or 'y'
      result = list()
      if 'x' in fields:
          pv_x = 'SR22C-DI-EBPM-04:SA:X'
          e = rml.element.Element('dummy_x', 0.0)
          e.set_pv('x', pv_x)
          result.append(e)
      if 'y' in fields:
          pv_y = 'SR22C-DI-EBPM-04:SA:Y'
          e = rml.element.Element('dummy_y', 0.0)
          e.set_pv('y', pv_y)
          result.append(e)
      return result
  
  
  def test_create_element():
      e = rml.element.Element('BPM', 6.0)
      assert e.get_type() == 'BPM'
      assert e.get_length() == 6.0
  
  
  def test_add_element_to_family():
      e = rml.element.Element('dummy', 0.0)
      e.add_to_family('fam')
      assert 'fam' in e.get_families()
  
  
  def test_get_pv_value():
      pv = get_elements(['x', 'y'])
      assert isinstance(pv[0].get_pv('x'), float)
      assert isinstance(pv[1].get_pv('y'), float)
  
new_contents: import pkg_resources
  from rml.exceptions import PvUnknownHandleError, PvUnknownFieldError
  import rml.element
  import pytest
  import cothread
  pkg_resources.require('cothread')
  
  
  def get_elements(fields):
      # Return a list of requested elements
      # <list> fields: 'x' or 'y'
      result = list()
      if 'x' in fields:
          pv_x = 'SR22C-DI-EBPM-04:SA:X'
          e = rml.element.Element('dummy_x', 0.0)
          e.set_pv('x', pv_x)
          result.append(e)
      if 'y' in fields:
          pv_y = 'SR22C-DI-EBPM-04:SA:Y'
          e = rml.element.Element('dummy_y', 0.0)
          e.set_pv('y', pv_y)
          result.append(e)
      return result
  
  
  def test_create_element():
      e = rml.element.Element('BPM', 6.0)
      assert e.get_type() == 'BPM'
      assert e.get_length() == 6.0
  
  
  def test_add_element_to_family():
      e = rml.element.Element('dummy', 0.0)
      e.add_to_family('fam')
      assert 'fam' in e.get_families()
  
  
  def test_get_pv_value():
      pv = get_elements(['x', 'y'])
      assert isinstance(pv[0].get_pv('x'), float)
      assert isinstance(pv[1].get_pv('y'), float)
  
  
  def test_get_pv_exceptions():
      pvs = get_elements(['x', 'y'])
      with pytest.raises(PvUnknownFieldError):
          pvs[0].get_pv('unknown_field')
      with pytest.raises(PvUnknownHandleError):
          pvs[1].get_pv('y', 'unkown_handle')
  
subject: Add tests for pv field/handle exceptions