old_contents: import os
  import pytest
  import io
  from glob import glob
  from psd_tools import PSDImage
  from psd2svg import psd2svg
  
  FIXTURES = [
      p for p in glob(
          os.path.join(os.path.dirname(__file__), 'fixtures', '*.psd'))
      ]
  
  @pytest.mark.parametrize('psd_file', FIXTURES)
  def test_convert(tmpdir, psd_file):
      psd2svg(psd_file, tmpdir.dirname)
  
  
  @pytest.mark.parametrize('psd_file', FIXTURES[0:1])
  def test_input_io(tmpdir, psd_file):
      with open(psd_file, "rb") as f:
          assert isinstance(psd2svg(f), bytes)
  
  
  @pytest.mark.parametrize('psd_file', FIXTURES[0:1])
  def test_input_psd(tmpdir, psd_file):
      psd = PSDImage.load(psd_file)
      psd2svg(psd)
  
  
  @pytest.mark.parametrize('psd_file', FIXTURES[0:1])
  def test_input_layer(tmpdir, psd_file):
      psd = PSDImage.load(psd_file)
      assert psd2svg(psd.layers[1]).startswith(b"<")
  
  
  @pytest.mark.parametrize('psd_file', FIXTURES[0:1])
  def test_output_io(tmpdir, psd_file):
      with io.BytesIO() as f:
          assert f == psd2svg(psd_file, f)
  
new_contents: import os
  import pytest
  import io
  from glob import glob
  from psd_tools import PSDImage
  from psd2svg import psd2svg
  
  FIXTURES = [
      p for p in glob(
          os.path.join(os.path.dirname(__file__), 'fixtures', '*.psd'))
      ]
  
  @pytest.mark.parametrize('psd_file', FIXTURES)
  def test_convert(tmpdir, psd_file):
      psd2svg(psd_file, tmpdir.dirname)
  
  
  @pytest.mark.parametrize('psd_file', FIXTURES[0:1])
  def test_input_io(tmpdir, psd_file):
      with open(psd_file, "rb") as f:
          assert isinstance(psd2svg(f), bytes)
  
  
  @pytest.mark.parametrize('psd_file', FIXTURES[0:1])
  def test_input_psd(tmpdir, psd_file):
      psd = PSDImage.load(psd_file)
      psd2svg(psd)
  
  
  @pytest.mark.parametrize('psd_file', FIXTURES[0:1])
  def test_input_layer(tmpdir, psd_file):
      psd = PSDImage.load(psd_file)
      assert psd2svg(psd.layers[0]).startswith(b"<")
  
  
  @pytest.mark.parametrize('psd_file', FIXTURES[0:1])
  def test_output_io(tmpdir, psd_file):
      with io.BytesIO() as f:
          assert f == psd2svg(psd_file, f)
  
subject: Fix fixture order