old_contents: import pytest
  
  import setuptools
  
  
  @pytest.fixture
  def example_source(tmpdir):
      tmpdir.mkdir('foo')
      (tmpdir / 'foo/bar.py').write('')
      (tmpdir / 'readme.txt').write('')
      return tmpdir
  
  
  def test_findall(example_source):
      found = list(setuptools.findall(str(example_source)))
      expected = ['readme.txt', 'foo/bar.py']
      assert found == expected
  
  
  def test_findall_curdir(example_source):
      with example_source.as_cwd():
          found = list(setuptools.findall())
      expected = ['readme.txt', 'foo/bar.py']
      assert found == expected
  
new_contents: import os
  
  import pytest
  
  import setuptools
  
  
  @pytest.fixture
  def example_source(tmpdir):
      tmpdir.mkdir('foo')
      (tmpdir / 'foo/bar.py').write('')
      (tmpdir / 'readme.txt').write('')
      return tmpdir
  
  
  def test_findall(example_source):
      found = list(setuptools.findall(str(example_source)))
      expected = ['readme.txt', 'foo/bar.py']
      assert found == expected
  
  
  def test_findall_curdir(example_source):
      with example_source.as_cwd():
          found = list(setuptools.findall())
      expected = ['readme.txt', 'foo/bar.py']
      assert found == expected
  
  
  @pytest.fixture
  def can_symlink(tmpdir):
      """
      Skip if cannot create a symbolic link
      """
      link_fn = 'link'
      target_fn = 'target'
      try:
          os.symlink(target_fn, link_fn)
      except (OSError, NotImplementedError, AttributeError):
          pytest.skip("Cannot create symbolic links")
      os.remove(link_fn)
  
  
  def test_findall_missing_symlink(tmpdir, can_symlink):
      with tmpdir.as_cwd():
          os.symlink('foo', 'bar')
          found = list(setuptools.findall())
          assert found == []
  
subject: Add another test capturing issue described in http://bugs.python.org/issue12885