old_contents: import pytest
  from name.models import validate_merged_with, Name
  from django.core.exceptions import ValidationError
  
  
  @pytest.mark.django_db
  def test_validate_merged_with_fails_with_unknown_id():
      with pytest.raises(ValidationError):
          validate_merged_with(1)
  
  
  @pytest.mark.django_db
  def test_validate_merged_with_passes():
      primary = Name.objects.create(name='Primary', name_type=0)
      secondary = Name.objects.create(name='Secondary', name_type=0)
  
      secondary.merged_with = primary
      secondary.save()
  
      validate_merged_with(secondary.id)
  
  
  @pytest.mark.django_db
  def test_validate_merged_with_fails():
      """Checks that validate_merged_with fails.
  
      This should fail when attempting to circularly merge Names.
      Example: Name1 -> Name2, Name2 -> Name1.
      """
      primary = Name.objects.create(name='Primary', name_type=0)
      secondary = Name.objects.create(name='Secondary', name_type=0)
  
      secondary.merged_with = primary
      primary.merged_with = secondary
  
      secondary.save()
      primary.save()
  
      with pytest.raises(ValidationError):
          validate_merged_with(primary.id)
  
  
  @pytest.mark.django_db
  def test_validate_merged_fails_when_name_merges_with_itself():
      """Check that validate_merged_with fails when we try to merge
      a name into itself.
      """
      name = Name.objects.create(name='Primary', name_type=0)
  
      name.merged_with = name
      name.save()
  
      with pytest.raises(ValidationError):
          validate_merged_with(name.id)
  
  
  @pytest.mark.django_db
  def test_validate_merged_with_fails_with_more_than_two_names():
      """Checks that a merge loop constisting of more than two name
      also fails validation.
      """
      primary = Name.objects.create(name='Primary', name_type=0)
      second = Name.objects.create(name='Second', name_type=0)
      third = Name.objects.create(name='Third', name_type=0)
  
      second.merged_with = primary
      second.save()
  
      third.merged_with = second
      third.save()
  
      primary.merged_with = third
      primary.save()
  
      with pytest.raises(ValidationError):
          validate_merged_with(primary.id)
  
new_contents: import pytest
  from name.models import validate_merged_with, Name
  from django.core.exceptions import ValidationError
  
  
  @pytest.mark.django_db
  def test_validate_merged_with_fails_with_unknown_id():
      with pytest.raises(ValidationError):
          validate_merged_with(1)
  
  
  @pytest.mark.django_db
  def test_validate_merged_with_passes():
      primary = Name.objects.create(name='Primary', name_type=0)
      secondary = Name.objects.create(name='Secondary', name_type=0)
  
      secondary.merged_with = primary
      secondary.save()
  
      validate_merged_with(secondary.id)
  
  
  @pytest.mark.django_db
  def test_validate_merged_with_fails():
      """Checks that validate_merged_with fails.
  
      This should fail when attempting to circularly merge Names.
      Example: Name1 -> Name2, Name2 -> Name1.
      """
      primary = Name.objects.create(name='Primary', name_type=0)
      secondary = Name.objects.create(name='Secondary', name_type=0)
  
      secondary.merged_with = primary
      primary.merged_with = secondary
  
      secondary.save()
      primary.save()
  
      with pytest.raises(ValidationError):
          validate_merged_with(primary.id)
  
  
  @pytest.mark.django_db
  def test_validate_merged_with_fails_when_name_merges_with_itself():
      """Check that validate_merged_with fails when we try to merge
      a name into itself.
      """
      name = Name.objects.create(name='Primary', name_type=0)
  
      name.merged_with = name
      name.save()
  
      with pytest.raises(ValidationError):
          validate_merged_with(name.id)
  
  
  @pytest.mark.django_db
  def test_validate_merged_with_fails_with_more_than_two_names():
      """Checks that a merge loop constisting of more than two name
      also fails validation.
      """
      primary = Name.objects.create(name='Primary', name_type=0)
      second = Name.objects.create(name='Second', name_type=0)
      third = Name.objects.create(name='Third', name_type=0)
  
      second.merged_with = primary
      second.save()
  
      third.merged_with = second
      third.save()
  
      primary.merged_with = third
      primary.save()
  
      with pytest.raises(ValidationError):
          validate_merged_with(primary.id)
  
subject: Fix the test name to to include the function under test.