old_contents: #: Okay
  def ok():
      pass
  #: N802
  def __bad():
      pass
  #: N802
  def bad__():
      pass
  #: N802
  def __bad__():
      pass
  #: Okay
  def _ok():
      pass
  #: Okay
  def ok_ok_ok_ok():
      pass
  #: Okay
  def _somehow_good():
      pass
  #: Okay
  def go_od_():
      pass
  #: Okay
  def _go_od_():
      pass
  #: N802
  def NotOK():
      pass
  #: Okay
  def _():
      pass
  #: Okay
  class Foo(object):
      def __method(self):
          pass
  #: Okay
  class Foo(object):
      def __method__(self):
          pass
  #: Okay
  class ClassName(object):
      def __method__(self):
          pass
  #: N802
  class ClassName(object):
      def notOk(self):
          pass
  #: N802
  class ClassName(object):
      def method(self):
          def __bad():
              pass
  #: Okay
  def setUp():
      pass
  
  #: Okay
  def tearDown():
      pass
  
new_contents: #: Okay
  def ok():
      pass
  #: N802
  def __bad():
      pass
  #: N802
  def bad__():
      pass
  #: N802
  def __bad__():
      pass
  #: Okay
  def _ok():
      pass
  #: Okay
  def ok_ok_ok_ok():
      pass
  #: Okay
  def _somehow_good():
      pass
  #: Okay
  def go_od_():
      pass
  #: Okay
  def _go_od_():
      pass
  #: N802
  def NotOK():
      pass
  #: Okay
  def _():
      pass
  #: Okay
  class Foo(object):
      def __method(self):
          pass
  #: Okay
  class Foo(object):
      def __method__(self):
          pass
  #: Okay
  class ClassName(object):
      def __method__(self):
          pass
  #: N802
  class ClassName(object):
      def notOk(self):
          pass
  #: N802
  class ClassName(object):
      def method(self):
          def __bad():
              pass
  #: Okay
  def setUp():
      pass
  
  #: Okay
  def tearDown():
      pass
  
  #: Okay
  class TestCase:
      def setUp(self):
          pass
      def tearDown(self):
          pass
  
subject: Add more tests around ignored names