old_contents: import binascii
  import pytest
  
  
  @pytest.fixture
  def icmp_packet(simple_capture):
      return simple_capture[7]
  
  
  @pytest.mark.parametrize('access_func', [
      lambda pkt: pkt[-1],
      lambda pkt: pkt['icmp'],
      lambda pkt: pkt['ICMP'],
      lambda pkt: pkt.icmp,
  ])
  def test_layer_access(icmp_packet, access_func):
      """
      Tests that layer access in various ways works the same way.
      """
      assert access_func(icmp_packet).layer_name.upper() == 'ICMP'
      assert binascii.unhexlify(access_func(icmp_packet).data) == b'abcdefghijklmnopqrstuvwabcdefghi'
  
  
  def test_packet_contains_layer(icmp_packet):
      assert 'ICMP' in icmp_packet
  
  
  def test_raw_mode(icmp_packet):
      original = icmp_packet.ip.src
      raw = icmp_packet.ip.src.raw_value
      icmp_packet.ip.raw_mode = True
      assert icmp_packet.ip.src != original
      assert icmp_packet.ip.src == raw
  
  
  def test_frame_info_access(icmp_packet):
      assert icmp_packet.frame_info.protocols == 'eth:ip:icmp:data'
      assert icmp_packet.frame_info.number == '8'
new_contents: import binascii
  import pytest
  
  
  @pytest.fixture
  def icmp_packet(simple_capture):
      return simple_capture[7]
  
  
  @pytest.mark.parametrize('access_func', [
      lambda pkt: pkt[-1],
      lambda pkt: pkt['icmp'],
      lambda pkt: pkt['ICMP'],
      lambda pkt: pkt.icmp,
  ])
  def test_layer_access(icmp_packet, access_func):
      """
      Tests that layer access in various ways works the same way.
      """
      assert access_func(icmp_packet).layer_name.upper() == 'ICMP'
      assert binascii.unhexlify(access_func(icmp_packet).data) == b'abcdefghijklmnopqrstuvwabcdefghi'
  
  
  def test_packet_contains_layer(icmp_packet):
      assert 'ICMP' in icmp_packet
  
  
  def test_raw_mode(icmp_packet):
      original = icmp_packet.ip.src
      raw = icmp_packet.ip.src.raw_value
      icmp_packet.ip.raw_mode = True
      assert icmp_packet.ip.src != original
      assert icmp_packet.ip.src == raw
  
  
  def test_frame_info_access(icmp_packet):
  		actual = icmp_packet.frame_info.protocols
  		expected = {'eth:ip:icmp:data', 'eth:ethertype:ip:icmp:data'}
  		assert actual in expected
  		assert icmp_packet.frame_info.number == '8'
subject: Fix test failure