text: """Test the autodoc extension."""
  
  import sys
  
  import pytest
  
  from .test_ext_autodoc import do_autodoc
  
  
  @pytest.mark.sphinx('html', testroot='ext-autodoc',
                      confoverrides={'autodoc_preserve_defaults': True})
  def test_preserve_defaults(app):
      if sys.version_info < (3, 8):
          color = "16777215"
      else:
          color = "0xFFFFFF"
  
      options = {"members": None}
      actual = do_autodoc(app, 'module', 'target.preserve_defaults', options)
      assert list(actual) == [
          '',
          '.. py:module:: target.preserve_defaults',
          '',
          '',
          '.. py:class:: Class()',
          '   :module: target.preserve_defaults',
          '',
          '   docstring',
          '',
          '',
          '   .. py:method:: Class.meth(name: str = CONSTANT, sentinel: typing.Any = '
          'SENTINEL, now: datetime.datetime = datetime.now(), color: int = %s) -> None' % color,
          '      :module: target.preserve_defaults',
          '',
          '      docstring',
          '',
          '',
          '.. py:function:: foo(name: str = CONSTANT, sentinel: typing.Any = SENTINEL, '
          'now: datetime.datetime = datetime.now(), color: int = %s) -> None' % color,
          '   :module: target.preserve_defaults',
          '',
          '   docstring',
          '',
      ]
  