text: import pytest
  from fluff.plot import profile_screenshot
  from tempfile import NamedTemporaryFile 
  
  @pytest.fixture
  def region():
      return "scaffold_1:44749422-44750067"
  
  @pytest.fixture
  def bamfile():
      return "tests/data/H3K4me3.bam"
  
  def test_profile(region, bamfile):
      tmp = NamedTemporaryFile(suffix=".png")
      
      profile_screenshot(tmp.name, region, [[bamfile]])
  